endianness - npm Package Compare versions

Comparing version 6.0.0-alpha.2 to 6.0.0-alpha.3

CHANGELOG.md

 # CHANGELOG
 
 ## version 6.0.0 (unreleased)
-- **endianness** as a ES6 module: endianness.js
-- **"main"** dist file is a UMD: endianness.umd.js
+- **endianness** as a ES6 module
+- Option to swap only a slice of the buffer

dist/endianness.cjs.js

@@ -112,12 +112,15 @@ (function(e, a) { for(var i in a) e[i] = a[i]; }(exports, /******/ (function(modules) { // webpackBootstrap
  * @param {number} offset The byte offset.
+ * @param {number=} start The start index. Assumes 0.
+ * @param {?number=} end The end index. Assumes the buffer length.
  * @throws {Error} If the buffer length is not valid.
  */
-function endianness(bytes, offset) {
-    let len = bytes.length;
+function endianness(bytes, offset, start=0, end=null) {
+    let len = end || bytes.length;
+    let limit = parseInt(offset / 2, 10);
     if (len % offset) {
-        throw new Error("Not enough bytes.");
+        throw new Error("Bad buffer length.");
     }
-    let i = 0;
+    let i = start;
     while (i < len) {
-        swap(bytes, offset, i);
+        swap(bytes, offset, i, limit);
         i += offset;
@@ -134,6 +137,5 @@ }
  */
-function swap(bytes, offset, index) {
+function swap(bytes, offset, index, limit) {
     let x = 0;
     let y = offset - 1;
-    let limit = parseInt(offset / 2, 10);
     while(x < limit) {
@@ -140,0 +142,0 @@ let theByte = bytes[index + x];

dist/endianness.min.js

@@ -1,2 +0,2 @@
-window.endianness=function(e){function b(a){if(d[a])return d[a].a;var c=d[a]={m:a,f:!1,a:{}};e[a].call(c.a,c,c.a,b);c.f=!0;return c.a}var d={};b.l=e;b.h=d;b.b=function(a,c){b.c(a)||Object.defineProperty(a,"a",{configurable:!1,enumerable:!0,get:c})};b.i=function(a){var c=a&&a.g?function(){return a["default"]}:function(){return a};b.b(c,c);return c};b.c=function(a){return Object.prototype.hasOwnProperty.call(a,"a")};b.j="";return b(b.o=0)}([function(e,b){Object.defineProperty(b,"__esModule",{value:!0});
-b.endianness=function(b,a){var c=b.length;if(c%a)throw Error("Not enough bytes.");for(var d=0;d<c;){for(var f=b,g=d,h=0,e=a-1,k=parseInt(a/2,10);h<k;){var l=f[g+h];f[g+h]=f[g+e];f[g+e]=l;h++;e--}d+=a}}}]);
+window.endianness=function(e){function c(a){if(d[a])return d[a].a;var b=d[a]={m:a,f:!1,a:{}};e[a].call(b.a,b,b.a,c);b.f=!0;return b.a}var d={};c.l=e;c.h=d;c.b=function(a,b){c.c(a)||Object.defineProperty(a,"a",{configurable:!1,enumerable:!0,get:b})};c.i=function(a){var b=a&&a.g?function(){return a["default"]}:function(){return a};c.b(b,b);return b};c.c=function(a){return Object.prototype.hasOwnProperty.call(a,"a")};c.j="";return c(c.o=0)}([function(e,c){Object.defineProperty(c,"__esModule",{value:!0});
+c.endianness=function(c,a,b,f){f=(void 0===f?null:f)||c.length;var d=parseInt(a/2,10);if(f%a)throw Error("Bad buffer length.");for(b=void 0===b?0:b;b<f;){for(var g=c,h=b,e=d,k=0,l=a-1;k<e;){var m=g[h+k];g[h+k]=g[h+l];g[h+l]=m;k++;l--}b+=a}}}]);window["endianness"]=window["endianness"]["endianness"];

dist/endianness.umd.js

@@ -122,12 +122,15 @@ (function webpackUniversalModuleDefinition(root, factory) {
  * @param {number} offset The byte offset.
+ * @param {number=} start The start index. Assumes 0.
+ * @param {?number=} end The end index. Assumes the buffer length.
  * @throws {Error} If the buffer length is not valid.
  */
-function endianness(bytes, offset) {
-    let len = bytes.length;
+function endianness(bytes, offset, start=0, end=null) {
+    let len = end || bytes.length;
+    let limit = parseInt(offset / 2, 10);
     if (len % offset) {
-        throw new Error("Not enough bytes.");
+        throw new Error("Bad buffer length.");
     }
-    let i = 0;
+    let i = start;
     while (i < len) {
-        swap(bytes, offset, i);
+        swap(bytes, offset, i, limit);
         i += offset;
@@ -144,6 +147,5 @@ }
  */
-function swap(bytes, offset, index) {
+function swap(bytes, offset, index, limit) {
     let x = 0;
     let y = offset - 1;
-    let limit = parseInt(offset / 2, 10);
     while(x < limit) {
@@ -150,0 +152,0 @@ let theByte = bytes[index + x];

index.js

@@ -40,12 +40,15 @@ /*
  * @param {number} offset The byte offset.
+ * @param {number=} start The start index. Assumes 0.
+ * @param {?number=} end The end index. Assumes the buffer length.
  * @throws {Error} If the buffer length is not valid.
  */
-export function endianness(bytes, offset) {
-    let len = bytes.length;
+export function endianness(bytes, offset, start=0, end=null) {
+    let len = end || bytes.length;
+    let limit = parseInt(offset / 2, 10);
     if (len % offset) {
-        throw new Error("Not enough bytes.");
+        throw new Error("Bad buffer length.");
     }
-    let i = 0;
+    let i = start;
     while (i < len) {
-        swap(bytes, offset, i);
+        swap(bytes, offset, i, limit);
         i += offset;
@@ -62,6 +65,5 @@ }
  */
-function swap(bytes, offset, index) {
+function swap(bytes, offset, index, limit) {
     let x = 0;
     let y = offset - 1;
-    let limit = parseInt(offset / 2, 10);
     while(x < limit) {
@@ -68,0 +70,0 @@ let theByte = bytes[index + x];

package.json

 {
   "name": "endianness",
-  "version": "6.0.0-alpha.2",
+  "version": "6.0.0-alpha.3",
   "description": "Swap endianness in byte arrays.",
@@ -5,0 +5,0 @@ "homepage": "https://github.com/rochars/endianness",

README.md

@@ -18,2 +18,17 @@ # endianness
 
+## Example
+```javascript
+const endianness = require("endianness").endianness;
+
+// Swap endianness of one 64-bit value:
+bytes = [64, 9, 33, 251, 84, 68, 45, 24];
+endianness(bytes, 8);
+console.log(bytes);
+
+// Swap endianness of two 24-bit values:
+bytes = ["00", "00", "80", "ff", "ff", "7f"];
+endianness(bytes, 3),
+console.log(bytes);
+```
+
 ## Browser
@@ -32,18 +47,8 @@ Use the compiled file in the */dist* folder:
 ```html
-<script src="https://cdn.jsdelivr.net/npm/endianness@5/dist/endianness.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/endianness@6"></script>
 ```
 
-## Example
-```javascript
-const endianness = require("endianness");
-
-// Swap endianness of one 64-bit value:
-bytes = [64, 9, 33, 251, 84, 68, 45, 24];
-endianness(bytes, 8);
-console.log(bytes);
-
-// Swap endianness of two 24-bit values:
-bytes = ["00", "00", "80", "ff", "ff", "7f"];
-endianness(bytes, 3),
-console.log(bytes);
+Or get it from [unpkg](https://www.unpkg.com):
+```html
+<script src="https://unpkg.com/endianness@6"></script>
 ```
@@ -57,5 +62,7 @@
  * @param {number} offset The byte offset.
+ * @param {number=} start The start index. Assumes 0.
+ * @param {?number=} end The end index. Assumes the buffer length.
  * @throws {Error} If the buffer length is not valid.
  */
-function endianness(bytes, offset) {}
+export function endianness(bytes, offset, start=0, end=null) {}
 ```
@@ -62,0 +69,0 @@

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Fixed alerts

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Major refactor

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Improved metrics

Total package byte prevSize

21066

increased by4.12%

Lines of code

367

increased by1.66%

Number of lines in readme file

88

increased by8.64%

Number of medium supply chain risk alerts

0

decreased by-100%

No dependency changes