@texting/string-value - npm Package Compare versions

Comparing version 0.2.2 to 0.2.3

dist/index.js

@@ -1,46 +0,1 @@
-import { STR } from '@typen/enum-data-types';
-
-const v1 = word => {
-  word.toLowerCase();
-  return (word.charCodeAt(0) & 0x7f) << 21
-};
-const v2 = word => {
-  word = word.toLowerCase();
-  return (
-    ((word.charCodeAt(0) & 0x7f) << 21) +
-    ((word.charCodeAt(1) & 0x7f) << 14)
-  )
-};
-const v3 = word => {
-  word = word.toLowerCase();
-  return (
-    ((word.charCodeAt(0) & 0x7f) << 21) +
-    ((word.charCodeAt(1) & 0x7f) << 14) +
-    ((word.charCodeAt(2) & 0x7f) << 7)
-  )
-};
-const v4 = word => {
-  word = word.toLowerCase();
-  return (
-    ((word.charCodeAt(0) & 0x7f) << 21) +
-    ((word.charCodeAt(1) & 0x7f) << 14) +
-    ((word.charCodeAt(2) & 0x7f) << 7) +
-    (word.charCodeAt(3) & 0x7f)
-  )
-};
-
-const stringValue = word => {
-  const l = word?.length;
-  if (!l) return NaN
-  if (typeof word !== STR) return NaN
-  if (l >= 8) return (v4(word.slice(0, 4)) << 2) + v4(word.slice(-4))
-  if (l === 7) return (v4(word.slice(0, 4)) << 2) + v3(word.slice(-3))
-  if (l === 6) return (v4(word.slice(0, 4)) << 2) + v2(word.slice(-2))
-  if (l === 5) return (v4(word.slice(0, 4)) << 2) + v1(word.slice(-1))
-  if (l === 4) return v4(word) << 2
-  if (l === 3) return v3(word) << 2
-  if (l === 2) return v2(word) << 2
-  if (l === 1) return v1(word) << 2
-};
-
 const X32VAL = {
@@ -81,3 +36,3 @@ 0: 0,
 
-function val(x, i) {
+function val$1(x, i) {
   let n = x.charCodeAt(i), p = n >> 5;
@@ -93,3 +48,3 @@ if (p === 1) return n & 0xF
   if (hi <= lo) return n
-  while (lo < hi) n += val(x, lo++) << (i -= 4);
+  while (lo < hi) n += val$1(x, lo++) << (i -= 4);
   return n
@@ -102,3 +57,3 @@ }
   let i = 28, n = 0;
-  while (lo < hi) n += val(x, lo++) << (i -= 4);
+  while (lo < hi) n += val$1(x, lo++) << (i -= 4);
   return n
@@ -127,2 +82,31 @@ }
 
-export { stringValue, value, values };
+const val = (x, i) => {
+  const n = x.charCodeAt(i);
+  return n < 32 ? 0 : n < 64 ? n & 0xF : n & 0x1F
+};
+
+const hash = (str, psl) => {
+  const length = str.length;
+  const hThres = Math.min(6, psl);
+  const hLen = Math.min(hThres, length);
+
+  let hVal = 0;
+  for (let i = 0; i < hLen; i++) {
+    hVal = (hVal << 5) | val(str, i);
+  }
+  hVal <<= (hThres - hLen) * 5;
+
+  let tVal = 0;
+  if (psl > 6 && length > 6) {
+    const tLen = Math.min(psl, length) - 6;
+    const tLo = length - tLen;
+    for (let i = tLo; i < length; i++) {
+      tVal = (tVal << 5) | val(str, i);
+    }
+    hVal += tVal / (1 << tLen * 5);
+  }
+
+  return hVal
+};
+
+export { hash, hash as stringValue, hash as value, values };

package.json

 {
   "name": "@texting/string-value",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "description": "Get quasi pseudo value of a string",
@@ -18,3 +18,3 @@ "type": "module",
     "@typen/enum-data-types": "^0.2.0",
-    "@texting/enum-chars": "^0.2.2"
+    "@texting/enum-chars": "^0.2.3"
   },
@@ -21,0 +21,0 @@ "devDependencies": {

No alert changes

Worsened metrics

Total package byte prevSize

6002

-9.07%

Lines of code

95

-15.93%

Dependency changes

• Updated

  @texting/enum-chars@^0.2.3