d3-color - npm Package Compare versions

Comparing version 3.0.1 to 3.1.0

dist/d3-color.js

@@ -1,2 +0,2 @@
-// https://d3js.org/d3-color/ v3.0.1 Copyright 2010-2021 Mike Bostock
+// https://d3js.org/d3-color/ v3.1.0 Copyright 2010-2022 Mike Bostock
 (function (global, factory) {
@@ -6,3 +6,3 @@ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
 (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.d3 = global.d3 || {}));
-}(this, (function (exports) { 'use strict';
+})(this, (function (exports) { 'use strict';
 
@@ -26,11 +26,11 @@ function define(constructor, factory, prototype) {
 var reI = "\\s*([+-]?\\d+)\\s*",
-    reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*",
-    reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*",
+    reN = "\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)\\s*",
+    reP = "\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)%\\s*",
     reHex = /^#([0-9a-f]{3,8})$/,
-    reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$"),
-    reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$"),
-    reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$"),
-    reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$"),
-    reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$"),
-    reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$");
+    reRgbInteger = new RegExp(`^rgb\\(${reI},${reI},${reI}\\)$`),
+    reRgbPercent = new RegExp(`^rgb\\(${reP},${reP},${reP}\\)$`),
+    reRgbaInteger = new RegExp(`^rgba\\(${reI},${reI},${reI},${reN}\\)$`),
+    reRgbaPercent = new RegExp(`^rgba\\(${reP},${reP},${reP},${reN}\\)$`),
+    reHslPercent = new RegExp(`^hsl\\(${reN},${reP},${reP}\\)$`),
+    reHslaPercent = new RegExp(`^hsla\\(${reN},${reP},${reP},${reN}\\)$`);
 
@@ -189,6 +189,6 @@ var named = {
 define(Color, color, {
-  copy: function(channels) {
+  copy(channels) {
     return Object.assign(new this.constructor, this, channels);
   },
-  displayable: function() {
+  displayable() {
     return this.rgb().displayable();
@@ -198,2 +198,3 @@ },
   formatHex: color_formatHex,
+  formatHex8: color_formatHex8,
   formatHsl: color_formatHsl,
@@ -208,2 +209,6 @@ formatRgb: color_formatRgb,
 
+function color_formatHex8() {
+  return this.rgb().formatHex8();
+}
+
 function color_formatHsl() {
@@ -264,14 +269,17 @@ return hslConvert(this).formatHsl();
 define(Rgb, rgb, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     k = k == null ? brighter : Math.pow(brighter, k);
     return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     k = k == null ? darker : Math.pow(darker, k);
     return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
   },
-  rgb: function() {
+  rgb() {
     return this;
   },
-  displayable: function() {
+  clamp() {
+    return new Rgb(clampi(this.r), clampi(this.g), clampi(this.b), clampa(this.opacity));
+  },
+  displayable() {
     return (-0.5 <= this.r && this.r < 255.5)
@@ -284,2 +292,3 @@ && (-0.5 <= this.g && this.g < 255.5)
   formatHex: rgb_formatHex,
+  formatHex8: rgb_formatHex8,
   formatRgb: rgb_formatRgb,
@@ -290,16 +299,24 @@ toString: rgb_formatRgb
 function rgb_formatHex() {
-  return "#" + hex(this.r) + hex(this.g) + hex(this.b);
+  return `#${hex(this.r)}${hex(this.g)}${hex(this.b)}`;
 }
 
+function rgb_formatHex8() {
+  return `#${hex(this.r)}${hex(this.g)}${hex(this.b)}${hex((isNaN(this.opacity) ? 1 : this.opacity) * 255)}`;
+}
+
 function rgb_formatRgb() {
-  var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
-  return (a === 1 ? "rgb(" : "rgba(")
-      + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", "
-      + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", "
-      + Math.max(0, Math.min(255, Math.round(this.b) || 0))
-      + (a === 1 ? ")" : ", " + a + ")");
+  const a = clampa(this.opacity);
+  return `${a === 1 ? "rgb(" : "rgba("}${clampi(this.r)}, ${clampi(this.g)}, ${clampi(this.b)}${a === 1 ? ")" : `, ${a})`}`;
 }
 
+function clampa(opacity) {
+  return isNaN(opacity) ? 1 : Math.max(0, Math.min(1, opacity));
+}
+
+function clampi(value) {
+  return Math.max(0, Math.min(255, Math.round(value) || 0));
+}
+
 function hex(value) {
-  value = Math.max(0, Math.min(255, Math.round(value) || 0));
+  value = clampi(value);
   return (value < 16 ? "0" : "") + value.toString(16);
@@ -353,11 +370,11 @@ }
 define(Hsl, hsl, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     k = k == null ? brighter : Math.pow(brighter, k);
     return new Hsl(this.h, this.s, this.l * k, this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     k = k == null ? darker : Math.pow(darker, k);
     return new Hsl(this.h, this.s, this.l * k, this.opacity);
   },
-  rgb: function() {
+  rgb() {
     var h = this.h % 360 + (this.h < 0) * 360,
@@ -375,3 +392,6 @@ s = isNaN(h) || isNaN(this.s) ? 0 : this.s,
   },
-  displayable: function() {
+  clamp() {
+    return new Hsl(clamph(this.h), clampt(this.s), clampt(this.l), clampa(this.opacity));
+  },
+  displayable() {
     return (0 <= this.s && this.s <= 1 || isNaN(this.s))
@@ -381,12 +401,17 @@ && (0 <= this.l && this.l <= 1)
   },
-  formatHsl: function() {
-    var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
-    return (a === 1 ? "hsl(" : "hsla(")
-        + (this.h || 0) + ", "
-        + (this.s || 0) * 100 + "%, "
-        + (this.l || 0) * 100 + "%"
-        + (a === 1 ? ")" : ", " + a + ")");
+  formatHsl() {
+    const a = clampa(this.opacity);
+    return `${a === 1 ? "hsl(" : "hsla("}${clamph(this.h)}, ${clampt(this.s) * 100}%, ${clampt(this.l) * 100}%${a === 1 ? ")" : `, ${a})`}`;
   }
 }));
 
+function clamph(value) {
+  value = (value || 0) % 360;
+  return value < 0 ? value + 360 : value;
+}
+
+function clampt(value) {
+  return Math.max(0, Math.min(1, value || 0));
+}
+
 /* From FvD 13.37, CSS Color Module Level 3 */
@@ -444,9 +469,9 @@ function hsl2rgb(h, m1, m2) {
 define(Lab, lab, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     return new Lab(this.l + K * (k == null ? 1 : k), this.a, this.b, this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     return new Lab(this.l - K * (k == null ? 1 : k), this.a, this.b, this.opacity);
   },
-  rgb: function() {
+  rgb() {
     var y = (this.l + 16) / 116,
@@ -513,9 +538,9 @@ x = isNaN(this.a) ? y : y + this.a / 500,
 define(Hcl, hcl, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     return new Hcl(this.h, this.c, this.l + K * (k == null ? 1 : k), this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     return new Hcl(this.h, this.c, this.l - K * (k == null ? 1 : k), this.opacity);
   },
-  rgb: function() {
+  rgb() {
     return hcl2lab(this).rgb();
@@ -560,11 +585,11 @@ }
 define(Cubehelix, cubehelix, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     k = k == null ? brighter : Math.pow(brighter, k);
     return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     k = k == null ? darker : Math.pow(darker, k);
     return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
   },
-  rgb: function() {
+  rgb() {
     var h = isNaN(this.h) ? 0 : (this.h + 120) * radians,
@@ -595,2 +620,2 @@ l = +this.l,
 
-})));
+}));

dist/d3-color.min.js

@@ -1,2 +0,2 @@
-// https://d3js.org/d3-color/ v3.0.1 Copyright 2010-2021 Mike Bostock
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((t="undefined"!=typeof globalThis?globalThis:t||self).d3=t.d3||{})}(this,(function(t){"use strict";function e(t,e,n){t.prototype=e.prototype=n,n.constructor=t}function n(t,e){var n=Object.create(t.prototype);for(var i in e)n[i]=e[i];return n}function i(){}var r=.7,a=1/r,s="\\s*([+-]?\\d+)\\s*",o="\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*",h="\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*",l=/^#([0-9a-f]{3,8})$/,u=new RegExp("^rgb\\("+[s,s,s]+"\\)$"),c=new RegExp("^rgb\\("+[h,h,h]+"\\)$"),g=new RegExp("^rgba\\("+[s,s,s,o]+"\\)$"),f=new RegExp("^rgba\\("+[h,h,h,o]+"\\)$"),d=new RegExp("^hsl\\("+[o,h,h]+"\\)$"),p=new RegExp("^hsla\\("+[o,h,h,o]+"\\)$"),b={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074};function y(){return this.rgb().formatHex()}function w(){return this.rgb().formatRgb()}function m(t){var e,n;return t=(t+"").trim().toLowerCase(),(e=l.exec(t))?(n=e[1].length,e=parseInt(e[1],16),6===n?N(e):3===n?new x(e>>8&15|e>>4&240,e>>4&15|240&e,(15&e)<<4|15&e,1):8===n?k(e>>24&255,e>>16&255,e>>8&255,(255&e)/255):4===n?k(e>>12&15|e>>8&240,e>>8&15|e>>4&240,e>>4&15|240&e,((15&e)<<4|15&e)/255):null):(e=u.exec(t))?new x(e[1],e[2],e[3],1):(e=c.exec(t))?new x(255*e[1]/100,255*e[2]/100,255*e[3]/100,1):(e=g.exec(t))?k(e[1],e[2],e[3],e[4]):(e=f.exec(t))?k(255*e[1]/100,255*e[2]/100,255*e[3]/100,e[4]):(e=d.exec(t))?$(e[1],e[2]/100,e[3]/100,1):(e=p.exec(t))?$(e[1],e[2]/100,e[3]/100,e[4]):b.hasOwnProperty(t)?N(b[t]):"transparent"===t?new x(NaN,NaN,NaN,0):null}function N(t){return new x(t>>16&255,t>>8&255,255&t,1)}function k(t,e,n,i){return i<=0&&(t=e=n=NaN),new x(t,e,n,i)}function M(t){return t instanceof i||(t=m(t)),t?new x((t=t.rgb()).r,t.g,t.b,t.opacity):new x}function v(t,e,n,i){return 1===arguments.length?M(t):new x(t,e,n,null==i?1:i)}function x(t,e,n,i){this.r=+t,this.g=+e,this.b=+n,this.opacity=+i}function q(){return"#"+E(this.r)+E(this.g)+E(this.b)}function R(){var t=this.opacity;return(1===(t=isNaN(t)?1:Math.max(0,Math.min(1,t)))?"rgb(":"rgba(")+Math.max(0,Math.min(255,Math.round(this.r)||0))+", "+Math.max(0,Math.min(255,Math.round(this.g)||0))+", "+Math.max(0,Math.min(255,Math.round(this.b)||0))+(1===t?")":", "+t+")")}function E(t){return((t=Math.max(0,Math.min(255,Math.round(t)||0)))<16?"0":"")+t.toString(16)}function $(t,e,n,i){return i<=0?t=e=n=NaN:n<=0||n>=1?t=e=NaN:e<=0&&(t=NaN),new O(t,e,n,i)}function H(t){if(t instanceof O)return new O(t.h,t.s,t.l,t.opacity);if(t instanceof i||(t=m(t)),!t)return new O;if(t instanceof O)return t;var e=(t=t.rgb()).r/255,n=t.g/255,r=t.b/255,a=Math.min(e,n,r),s=Math.max(e,n,r),o=NaN,h=s-a,l=(s+a)/2;return h?(o=e===s?(n-r)/h+6*(n<r):n===s?(r-e)/h+2:(e-n)/h+4,h/=l<.5?s+a:2-s-a,o*=60):h=l>0&&l<1?0:o,new O(o,h,l,t.opacity)}function j(t,e,n,i){return 1===arguments.length?H(t):new O(t,e,n,null==i?1:i)}function O(t,e,n,i){this.h=+t,this.s=+e,this.l=+n,this.opacity=+i}function P(t,e,n){return 255*(t<60?e+(n-e)*t/60:t<180?n:t<240?e+(n-e)*(240-t)/60:e)}e(i,m,{copy:function(t){return Object.assign(new this.constructor,this,t)},displayable:function(){return this.rgb().displayable()},hex:y,formatHex:y,formatHsl:function(){return H(this).formatHsl()},formatRgb:w,toString:w}),e(x,v,n(i,{brighter:function(t){return t=null==t?a:Math.pow(a,t),new x(this.r*t,this.g*t,this.b*t,this.opacity)},darker:function(t){return t=null==t?r:Math.pow(r,t),new x(this.r*t,this.g*t,this.b*t,this.opacity)},rgb:function(){return this},displayable:function(){return-.5<=this.r&&this.r<255.5&&-.5<=this.g&&this.g<255.5&&-.5<=this.b&&this.b<255.5&&0<=this.opacity&&this.opacity<=1},hex:q,formatHex:q,formatRgb:R,toString:R})),e(O,j,n(i,{brighter:function(t){return t=null==t?a:Math.pow(a,t),new O(this.h,this.s,this.l*t,this.opacity)},darker:function(t){return t=null==t?r:Math.pow(r,t),new O(this.h,this.s,this.l*t,this.opacity)},rgb:function(){var t=this.h%360+360*(this.h<0),e=isNaN(t)||isNaN(this.s)?0:this.s,n=this.l,i=n+(n<.5?n:1-n)*e,r=2*n-i;return new x(P(t>=240?t-240:t+120,r,i),P(t,r,i),P(t<120?t+240:t-120,r,i),this.opacity)},displayable:function(){return(0<=this.s&&this.s<=1||isNaN(this.s))&&0<=this.l&&this.l<=1&&0<=this.opacity&&this.opacity<=1},formatHsl:function(){var t=this.opacity;return(1===(t=isNaN(t)?1:Math.max(0,Math.min(1,t)))?"hsl(":"hsla(")+(this.h||0)+", "+100*(this.s||0)+"%, "+100*(this.l||0)+"%"+(1===t?")":", "+t+")")}}));const I=Math.PI/180,S=180/Math.PI,T=.96422,_=.82521,z=4/29,C=6/29,L=3*C*C;function A(t){if(t instanceof D)return new D(t.l,t.a,t.b,t.opacity);if(t instanceof V)return W(t);t instanceof x||(t=M(t));var e,n,i=K(t.r),r=K(t.g),a=K(t.b),s=F((.2225045*i+.7168786*r+.0606169*a)/1);return i===r&&r===a?e=n=s:(e=F((.4360747*i+.3850649*r+.1430804*a)/T),n=F((.0139322*i+.0971045*r+.7141733*a)/_)),new D(116*s-16,500*(e-s),200*(s-n),t.opacity)}function B(t,e,n,i){return 1===arguments.length?A(t):new D(t,e,n,null==i?1:i)}function D(t,e,n,i){this.l=+t,this.a=+e,this.b=+n,this.opacity=+i}function F(t){return t>.008856451679035631?Math.pow(t,1/3):t/L+z}function G(t){return t>C?t*t*t:L*(t-z)}function J(t){return 255*(t<=.0031308?12.92*t:1.055*Math.pow(t,1/2.4)-.055)}function K(t){return(t/=255)<=.04045?t/12.92:Math.pow((t+.055)/1.055,2.4)}function Q(t){if(t instanceof V)return new V(t.h,t.c,t.l,t.opacity);if(t instanceof D||(t=A(t)),0===t.a&&0===t.b)return new V(NaN,0<t.l&&t.l<100?0:NaN,t.l,t.opacity);var e=Math.atan2(t.b,t.a)*S;return new V(e<0?e+360:e,Math.sqrt(t.a*t.a+t.b*t.b),t.l,t.opacity)}function U(t,e,n,i){return 1===arguments.length?Q(t):new V(t,e,n,null==i?1:i)}function V(t,e,n,i){this.h=+t,this.c=+e,this.l=+n,this.opacity=+i}function W(t){if(isNaN(t.h))return new D(t.l,0,0,t.opacity);var e=t.h*I;return new D(t.l,Math.cos(e)*t.c,Math.sin(e)*t.c,t.opacity)}e(D,B,n(i,{brighter:function(t){return new D(this.l+18*(null==t?1:t),this.a,this.b,this.opacity)},darker:function(t){return new D(this.l-18*(null==t?1:t),this.a,this.b,this.opacity)},rgb:function(){var t=(this.l+16)/116,e=isNaN(this.a)?t:t+this.a/500,n=isNaN(this.b)?t:t-this.b/200;return new x(J(3.1338561*(e=T*G(e))-1.6168667*(t=1*G(t))-.4906146*(n=_*G(n))),J(-.9787684*e+1.9161415*t+.033454*n),J(.0719453*e-.2289914*t+1.4052427*n),this.opacity)}})),e(V,U,n(i,{brighter:function(t){return new V(this.h,this.c,this.l+18*(null==t?1:t),this.opacity)},darker:function(t){return new V(this.h,this.c,this.l-18*(null==t?1:t),this.opacity)},rgb:function(){return W(this).rgb()}}));var X=-.14861,Y=1.78277,Z=-.29227,tt=-.90649,et=1.97294,nt=et*tt,it=et*Y,rt=Y*Z-tt*X;function at(t){if(t instanceof ot)return new ot(t.h,t.s,t.l,t.opacity);t instanceof x||(t=M(t));var e=t.r/255,n=t.g/255,i=t.b/255,r=(rt*i+nt*e-it*n)/(rt+nt-it),a=i-r,s=(et*(n-r)-Z*a)/tt,o=Math.sqrt(s*s+a*a)/(et*r*(1-r)),h=o?Math.atan2(s,a)*S-120:NaN;return new ot(h<0?h+360:h,o,r,t.opacity)}function st(t,e,n,i){return 1===arguments.length?at(t):new ot(t,e,n,null==i?1:i)}function ot(t,e,n,i){this.h=+t,this.s=+e,this.l=+n,this.opacity=+i}e(ot,st,n(i,{brighter:function(t){return t=null==t?a:Math.pow(a,t),new ot(this.h,this.s,this.l*t,this.opacity)},darker:function(t){return t=null==t?r:Math.pow(r,t),new ot(this.h,this.s,this.l*t,this.opacity)},rgb:function(){var t=isNaN(this.h)?0:(this.h+120)*I,e=+this.l,n=isNaN(this.s)?0:this.s*e*(1-e),i=Math.cos(t),r=Math.sin(t);return new x(255*(e+n*(X*i+Y*r)),255*(e+n*(Z*i+tt*r)),255*(e+n*(et*i)),this.opacity)}})),t.color=m,t.cubehelix=st,t.gray=function(t,e){return new D(t,0,0,null==e?1:e)},t.hcl=U,t.hsl=j,t.lab=B,t.lch=function(t,e,n,i){return 1===arguments.length?Q(t):new V(n,e,t,null==i?1:i)},t.rgb=v,Object.defineProperty(t,"__esModule",{value:!0})}));
+// https://d3js.org/d3-color/ v3.1.0 Copyright 2010-2022 Mike Bostock
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((t="undefined"!=typeof globalThis?globalThis:t||self).d3=t.d3||{})}(this,(function(t){"use strict";function e(t,e,i){t.prototype=e.prototype=i,i.constructor=t}function i(t,e){var i=Object.create(t.prototype);for(var n in e)i[n]=e[n];return i}function n(){}var r=.7,a=1/r,s="\\s*([+-]?\\d+)\\s*",h="\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)\\s*",o="\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)%\\s*",l=/^#([0-9a-f]{3,8})$/,u=new RegExp(`^rgb\\(${s},${s},${s}\\)$`),c=new RegExp(`^rgb\\(${o},${o},${o}\\)$`),g=new RegExp(`^rgba\\(${s},${s},${s},${h}\\)$`),p=new RegExp(`^rgba\\(${o},${o},${o},${h}\\)$`),f=new RegExp(`^hsl\\(${h},${o},${o}\\)$`),d=new RegExp(`^hsla\\(${h},${o},${o},${h}\\)$`),b={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074};function y(){return this.rgb().formatHex()}function w(){return this.rgb().formatRgb()}function m(t){var e,i;return t=(t+"").trim().toLowerCase(),(e=l.exec(t))?(i=e[1].length,e=parseInt(e[1],16),6===i?$(e):3===i?new M(e>>8&15|e>>4&240,e>>4&15|240&e,(15&e)<<4|15&e,1):8===i?N(e>>24&255,e>>16&255,e>>8&255,(255&e)/255):4===i?N(e>>12&15|e>>8&240,e>>8&15|e>>4&240,e>>4&15|240&e,((15&e)<<4|15&e)/255):null):(e=u.exec(t))?new M(e[1],e[2],e[3],1):(e=c.exec(t))?new M(255*e[1]/100,255*e[2]/100,255*e[3]/100,1):(e=g.exec(t))?N(e[1],e[2],e[3],e[4]):(e=p.exec(t))?N(255*e[1]/100,255*e[2]/100,255*e[3]/100,e[4]):(e=f.exec(t))?j(e[1],e[2]/100,e[3]/100,1):(e=d.exec(t))?j(e[1],e[2]/100,e[3]/100,e[4]):b.hasOwnProperty(t)?$(b[t]):"transparent"===t?new M(NaN,NaN,NaN,0):null}function $(t){return new M(t>>16&255,t>>8&255,255&t,1)}function N(t,e,i,n){return n<=0&&(t=e=i=NaN),new M(t,e,i,n)}function k(t){return t instanceof n||(t=m(t)),t?new M((t=t.rgb()).r,t.g,t.b,t.opacity):new M}function x(t,e,i,n){return 1===arguments.length?k(t):new M(t,e,i,null==n?1:n)}function M(t,e,i,n){this.r=+t,this.g=+e,this.b=+i,this.opacity=+n}function v(){return`#${E(this.r)}${E(this.g)}${E(this.b)}`}function q(){const t=H(this.opacity);return`${1===t?"rgb(":"rgba("}${R(this.r)}, ${R(this.g)}, ${R(this.b)}${1===t?")":`, ${t})`}`}function H(t){return isNaN(t)?1:Math.max(0,Math.min(1,t))}function R(t){return Math.max(0,Math.min(255,Math.round(t)||0))}function E(t){return((t=R(t))<16?"0":"")+t.toString(16)}function j(t,e,i,n){return n<=0?t=e=i=NaN:i<=0||i>=1?t=e=NaN:e<=0&&(t=NaN),new I(t,e,i,n)}function O(t){if(t instanceof I)return new I(t.h,t.s,t.l,t.opacity);if(t instanceof n||(t=m(t)),!t)return new I;if(t instanceof I)return t;var e=(t=t.rgb()).r/255,i=t.g/255,r=t.b/255,a=Math.min(e,i,r),s=Math.max(e,i,r),h=NaN,o=s-a,l=(s+a)/2;return o?(h=e===s?(i-r)/o+6*(i<r):i===s?(r-e)/o+2:(e-i)/o+4,o/=l<.5?s+a:2-s-a,h*=60):o=l>0&&l<1?0:h,new I(h,o,l,t.opacity)}function P(t,e,i,n){return 1===arguments.length?O(t):new I(t,e,i,null==n?1:n)}function I(t,e,i,n){this.h=+t,this.s=+e,this.l=+i,this.opacity=+n}function S(t){return(t=(t||0)%360)<0?t+360:t}function T(t){return Math.max(0,Math.min(1,t||0))}function _(t,e,i){return 255*(t<60?e+(i-e)*t/60:t<180?i:t<240?e+(i-e)*(240-t)/60:e)}e(n,m,{copy(t){return Object.assign(new this.constructor,this,t)},displayable(){return this.rgb().displayable()},hex:y,formatHex:y,formatHex8:function(){return this.rgb().formatHex8()},formatHsl:function(){return O(this).formatHsl()},formatRgb:w,toString:w}),e(M,x,i(n,{brighter(t){return t=null==t?a:Math.pow(a,t),new M(this.r*t,this.g*t,this.b*t,this.opacity)},darker(t){return t=null==t?r:Math.pow(r,t),new M(this.r*t,this.g*t,this.b*t,this.opacity)},rgb(){return this},clamp(){return new M(R(this.r),R(this.g),R(this.b),H(this.opacity))},displayable(){return-.5<=this.r&&this.r<255.5&&-.5<=this.g&&this.g<255.5&&-.5<=this.b&&this.b<255.5&&0<=this.opacity&&this.opacity<=1},hex:v,formatHex:v,formatHex8:function(){return`#${E(this.r)}${E(this.g)}${E(this.b)}${E(255*(isNaN(this.opacity)?1:this.opacity))}`},formatRgb:q,toString:q})),e(I,P,i(n,{brighter(t){return t=null==t?a:Math.pow(a,t),new I(this.h,this.s,this.l*t,this.opacity)},darker(t){return t=null==t?r:Math.pow(r,t),new I(this.h,this.s,this.l*t,this.opacity)},rgb(){var t=this.h%360+360*(this.h<0),e=isNaN(t)||isNaN(this.s)?0:this.s,i=this.l,n=i+(i<.5?i:1-i)*e,r=2*i-n;return new M(_(t>=240?t-240:t+120,r,n),_(t,r,n),_(t<120?t+240:t-120,r,n),this.opacity)},clamp(){return new I(S(this.h),T(this.s),T(this.l),H(this.opacity))},displayable(){return(0<=this.s&&this.s<=1||isNaN(this.s))&&0<=this.l&&this.l<=1&&0<=this.opacity&&this.opacity<=1},formatHsl(){const t=H(this.opacity);return`${1===t?"hsl(":"hsla("}${S(this.h)}, ${100*T(this.s)}%, ${100*T(this.l)}%${1===t?")":`, ${t})`}`}}));const z=Math.PI/180,C=180/Math.PI,L=.96422,A=.82521,B=4/29,D=6/29,F=3*D*D;function G(t){if(t instanceof K)return new K(t.l,t.a,t.b,t.opacity);if(t instanceof Z)return tt(t);t instanceof M||(t=k(t));var e,i,n=W(t.r),r=W(t.g),a=W(t.b),s=Q((.2225045*n+.7168786*r+.0606169*a)/1);return n===r&&r===a?e=i=s:(e=Q((.4360747*n+.3850649*r+.1430804*a)/L),i=Q((.0139322*n+.0971045*r+.7141733*a)/A)),new K(116*s-16,500*(e-s),200*(s-i),t.opacity)}function J(t,e,i,n){return 1===arguments.length?G(t):new K(t,e,i,null==n?1:n)}function K(t,e,i,n){this.l=+t,this.a=+e,this.b=+i,this.opacity=+n}function Q(t){return t>.008856451679035631?Math.pow(t,1/3):t/F+B}function U(t){return t>D?t*t*t:F*(t-B)}function V(t){return 255*(t<=.0031308?12.92*t:1.055*Math.pow(t,1/2.4)-.055)}function W(t){return(t/=255)<=.04045?t/12.92:Math.pow((t+.055)/1.055,2.4)}function X(t){if(t instanceof Z)return new Z(t.h,t.c,t.l,t.opacity);if(t instanceof K||(t=G(t)),0===t.a&&0===t.b)return new Z(NaN,0<t.l&&t.l<100?0:NaN,t.l,t.opacity);var e=Math.atan2(t.b,t.a)*C;return new Z(e<0?e+360:e,Math.sqrt(t.a*t.a+t.b*t.b),t.l,t.opacity)}function Y(t,e,i,n){return 1===arguments.length?X(t):new Z(t,e,i,null==n?1:n)}function Z(t,e,i,n){this.h=+t,this.c=+e,this.l=+i,this.opacity=+n}function tt(t){if(isNaN(t.h))return new K(t.l,0,0,t.opacity);var e=t.h*z;return new K(t.l,Math.cos(e)*t.c,Math.sin(e)*t.c,t.opacity)}e(K,J,i(n,{brighter(t){return new K(this.l+18*(null==t?1:t),this.a,this.b,this.opacity)},darker(t){return new K(this.l-18*(null==t?1:t),this.a,this.b,this.opacity)},rgb(){var t=(this.l+16)/116,e=isNaN(this.a)?t:t+this.a/500,i=isNaN(this.b)?t:t-this.b/200;return new M(V(3.1338561*(e=L*U(e))-1.6168667*(t=1*U(t))-.4906146*(i=A*U(i))),V(-.9787684*e+1.9161415*t+.033454*i),V(.0719453*e-.2289914*t+1.4052427*i),this.opacity)}})),e(Z,Y,i(n,{brighter(t){return new Z(this.h,this.c,this.l+18*(null==t?1:t),this.opacity)},darker(t){return new Z(this.h,this.c,this.l-18*(null==t?1:t),this.opacity)},rgb(){return tt(this).rgb()}}));var et=-.14861,it=1.78277,nt=-.29227,rt=-.90649,at=1.97294,st=at*rt,ht=at*it,ot=it*nt-rt*et;function lt(t){if(t instanceof ct)return new ct(t.h,t.s,t.l,t.opacity);t instanceof M||(t=k(t));var e=t.r/255,i=t.g/255,n=t.b/255,r=(ot*n+st*e-ht*i)/(ot+st-ht),a=n-r,s=(at*(i-r)-nt*a)/rt,h=Math.sqrt(s*s+a*a)/(at*r*(1-r)),o=h?Math.atan2(s,a)*C-120:NaN;return new ct(o<0?o+360:o,h,r,t.opacity)}function ut(t,e,i,n){return 1===arguments.length?lt(t):new ct(t,e,i,null==n?1:n)}function ct(t,e,i,n){this.h=+t,this.s=+e,this.l=+i,this.opacity=+n}e(ct,ut,i(n,{brighter(t){return t=null==t?a:Math.pow(a,t),new ct(this.h,this.s,this.l*t,this.opacity)},darker(t){return t=null==t?r:Math.pow(r,t),new ct(this.h,this.s,this.l*t,this.opacity)},rgb(){var t=isNaN(this.h)?0:(this.h+120)*z,e=+this.l,i=isNaN(this.s)?0:this.s*e*(1-e),n=Math.cos(t),r=Math.sin(t);return new M(255*(e+i*(et*n+it*r)),255*(e+i*(nt*n+rt*r)),255*(e+i*(at*n)),this.opacity)}})),t.color=m,t.cubehelix=ut,t.gray=function(t,e){return new K(t,0,0,null==e?1:e)},t.hcl=Y,t.hsl=P,t.lab=J,t.lch=function(t,e,i,n){return 1===arguments.length?X(t):new Z(i,e,t,null==n?1:n)},t.rgb=x,Object.defineProperty(t,"__esModule",{value:!0})}));

package.json

 {
   "name": "d3-color",
-  "version": "3.0.1",
+  "version": "3.1.0",
   "description": "Color spaces! RGB, HSL, Cubehelix, Lab and HCL (Lch).",
@@ -41,4 +41,4 @@ "homepage": "https://d3js.org/d3-color/",
   "devDependencies": {
-    "eslint": "7",
-    "mocha": "8",
+    "eslint": "8",
+    "mocha": "9",
     "rollup": "2",
@@ -45,0 +45,0 @@ "rollup-plugin-terser": "7"

README.md

@@ -155,2 +155,6 @@ # d3-color
 
+<a name="rgb_clamp" href="#rgb_clamp">#</a> *rgb*.<b>clamp</b>() [<>](https://github.com/d3/d3-color/blob/master/src/color.js "Source")
+
+Returns a new RGB color where the `r`, `g`, and `b` channels are clamped to the range [0, 255] and rounded to the nearest integer value, and the `opacity` is clamped to the range [0, 1].
+
 <a name="hsl" href="#hsl">#</a> d3.<b>hsl</b>(<i>h</i>, <i>s</i>, <i>l</i>[, <i>opacity</i>]) [<>](https://github.com/d3/d3-color/blob/master/src/color.js "Source")<br>
@@ -164,2 +168,6 @@ <a href="#hsl">#</a> d3.<b>hsl</b>(<i>specifier</i>)<br>
 
+<a name="hsl_clamp" href="#hsl_clamp">#</a> *hsl*.<b>clamp</b>() [<>](https://github.com/d3/d3-color/blob/master/src/color.js "Source")
+
+Returns a new HSL color where the `h` channel is clamped to the range [0, 360), and the `s`, `l`, and `opacity` channels are clamped to the range [0, 1].
+
 <a name="lab" href="#lab">#</a> d3.<b>lab</b>(<i>l</i>, <i>a</i>, <i>b</i>[, <i>opacity</i>]) [<>](https://github.com/d3/d3-color/blob/master/src/lab.js "Source")<br>
@@ -166,0 +174,0 @@ <a href="#lab">#</a> d3.<b>lab</b>(<i>specifier</i>)<br>

src/color.js

@@ -9,11 +9,11 @@ import define, {extend} from "./define.js";
 var reI = "\\s*([+-]?\\d+)\\s*",
-    reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*",
-    reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*",
+    reN = "\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)\\s*",
+    reP = "\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)%\\s*",
     reHex = /^#([0-9a-f]{3,8})$/,
-    reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$"),
-    reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$"),
-    reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$"),
-    reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$"),
-    reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$"),
-    reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$");
+    reRgbInteger = new RegExp(`^rgb\\(${reI},${reI},${reI}\\)$`),
+    reRgbPercent = new RegExp(`^rgb\\(${reP},${reP},${reP}\\)$`),
+    reRgbaInteger = new RegExp(`^rgba\\(${reI},${reI},${reI},${reN}\\)$`),
+    reRgbaPercent = new RegExp(`^rgba\\(${reP},${reP},${reP},${reN}\\)$`),
+    reHslPercent = new RegExp(`^hsl\\(${reN},${reP},${reP}\\)$`),
+    reHslaPercent = new RegExp(`^hsla\\(${reN},${reP},${reP},${reN}\\)$`);
 
@@ -172,6 +172,6 @@ var named = {
 define(Color, color, {
-  copy: function(channels) {
+  copy(channels) {
     return Object.assign(new this.constructor, this, channels);
   },
-  displayable: function() {
+  displayable() {
     return this.rgb().displayable();
@@ -181,2 +181,3 @@ },
   formatHex: color_formatHex,
+  formatHex8: color_formatHex8,
   formatHsl: color_formatHsl,
@@ -191,2 +192,6 @@ formatRgb: color_formatRgb,
 
+function color_formatHex8() {
+  return this.rgb().formatHex8();
+}
+
 function color_formatHsl() {
@@ -247,14 +252,17 @@ return hslConvert(this).formatHsl();
 define(Rgb, rgb, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     k = k == null ? brighter : Math.pow(brighter, k);
     return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     k = k == null ? darker : Math.pow(darker, k);
     return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
   },
-  rgb: function() {
+  rgb() {
     return this;
   },
-  displayable: function() {
+  clamp() {
+    return new Rgb(clampi(this.r), clampi(this.g), clampi(this.b), clampa(this.opacity));
+  },
+  displayable() {
     return (-0.5 <= this.r && this.r < 255.5)
@@ -267,2 +275,3 @@ && (-0.5 <= this.g && this.g < 255.5)
   formatHex: rgb_formatHex,
+  formatHex8: rgb_formatHex8,
   formatRgb: rgb_formatRgb,
@@ -273,16 +282,24 @@ toString: rgb_formatRgb
 function rgb_formatHex() {
-  return "#" + hex(this.r) + hex(this.g) + hex(this.b);
+  return `#${hex(this.r)}${hex(this.g)}${hex(this.b)}`;
 }
 
+function rgb_formatHex8() {
+  return `#${hex(this.r)}${hex(this.g)}${hex(this.b)}${hex((isNaN(this.opacity) ? 1 : this.opacity) * 255)}`;
+}
+
 function rgb_formatRgb() {
-  var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
-  return (a === 1 ? "rgb(" : "rgba(")
-      + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", "
-      + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", "
-      + Math.max(0, Math.min(255, Math.round(this.b) || 0))
-      + (a === 1 ? ")" : ", " + a + ")");
+  const a = clampa(this.opacity);
+  return `${a === 1 ? "rgb(" : "rgba("}${clampi(this.r)}, ${clampi(this.g)}, ${clampi(this.b)}${a === 1 ? ")" : `, ${a})`}`;
 }
 
+function clampa(opacity) {
+  return isNaN(opacity) ? 1 : Math.max(0, Math.min(1, opacity));
+}
+
+function clampi(value) {
+  return Math.max(0, Math.min(255, Math.round(value) || 0));
+}
+
 function hex(value) {
-  value = Math.max(0, Math.min(255, Math.round(value) || 0));
+  value = clampi(value);
   return (value < 16 ? "0" : "") + value.toString(16);
@@ -336,11 +353,11 @@ }
 define(Hsl, hsl, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     k = k == null ? brighter : Math.pow(brighter, k);
     return new Hsl(this.h, this.s, this.l * k, this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     k = k == null ? darker : Math.pow(darker, k);
     return new Hsl(this.h, this.s, this.l * k, this.opacity);
   },
-  rgb: function() {
+  rgb() {
     var h = this.h % 360 + (this.h < 0) * 360,
@@ -358,3 +375,6 @@ s = isNaN(h) || isNaN(this.s) ? 0 : this.s,
   },
-  displayable: function() {
+  clamp() {
+    return new Hsl(clamph(this.h), clampt(this.s), clampt(this.l), clampa(this.opacity));
+  },
+  displayable() {
     return (0 <= this.s && this.s <= 1 || isNaN(this.s))
@@ -364,12 +384,17 @@ && (0 <= this.l && this.l <= 1)
   },
-  formatHsl: function() {
-    var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
-    return (a === 1 ? "hsl(" : "hsla(")
-        + (this.h || 0) + ", "
-        + (this.s || 0) * 100 + "%, "
-        + (this.l || 0) * 100 + "%"
-        + (a === 1 ? ")" : ", " + a + ")");
+  formatHsl() {
+    const a = clampa(this.opacity);
+    return `${a === 1 ? "hsl(" : "hsla("}${clamph(this.h)}, ${clampt(this.s) * 100}%, ${clampt(this.l) * 100}%${a === 1 ? ")" : `, ${a})`}`;
   }
 }));
 
+function clamph(value) {
+  value = (value || 0) % 360;
+  return value < 0 ? value + 360 : value;
+}
+
+function clampt(value) {
+  return Math.max(0, Math.min(1, value || 0));
+}
+
 /* From FvD 13.37, CSS Color Module Level 3 */
@@ -376,0 +401,0 @@ function hsl2rgb(h, m1, m2) {

src/cubehelix.js

@@ -40,11 +40,11 @@ import define, {extend} from "./define.js";
 define(Cubehelix, cubehelix, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     k = k == null ? brighter : Math.pow(brighter, k);
     return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     k = k == null ? darker : Math.pow(darker, k);
     return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
   },
-  rgb: function() {
+  rgb() {
     var h = isNaN(this.h) ? 0 : (this.h + 120) * radians,
@@ -51,0 +51,0 @@ l = +this.l,

src/lab.js

@@ -46,9 +46,9 @@ import define, {extend} from "./define.js";
 define(Lab, lab, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     return new Lab(this.l + K * (k == null ? 1 : k), this.a, this.b, this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     return new Lab(this.l - K * (k == null ? 1 : k), this.a, this.b, this.opacity);
   },
-  rgb: function() {
+  rgb() {
     var y = (this.l + 16) / 116,
@@ -115,11 +115,11 @@ x = isNaN(this.a) ? y : y + this.a / 500,
 define(Hcl, hcl, extend(Color, {
-  brighter: function(k) {
+  brighter(k) {
     return new Hcl(this.h, this.c, this.l + K * (k == null ? 1 : k), this.opacity);
   },
-  darker: function(k) {
+  darker(k) {
     return new Hcl(this.h, this.c, this.l - K * (k == null ? 1 : k), this.opacity);
   },
-  rgb: function() {
+  rgb() {
     return hcl2lab(this).rgb();
   }
 }));

No alert changes

Improved metrics

Total package byte prevSize

61152

increased by2.43%

Lines of code

1134

increased by3.56%

Number of lines in readme file

204

increased by4.08%

No dependency changes