nanoid - npm Package Compare versions

Comparing version 2.1.10 to 2.1.11

async/index.browser.js

@@ -7,30 +7,25 @@ // This file replaces `async/index.js` in bundlers like webpack or Rollup,
 // This alphabet uses a-z A-Z 0-9 _- symbols.
-// Despite the fact the source code is quite long, its entropy
-// is low and there are lots of duplicates - just what compressors
-// like GZIP and Brotli likes the best.
-var i
-var url = '_-' + String.fromCharCode(
-  // ASCII codes for 0...9
-  i = 48, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1,
+// Symbols are generated for smaller size.
+// -_zyxwvutsrqponmlkjihgfedcba9876543210ZYXWVUTSRQPONMLKJIHGFEDCBA
+var url = '-_'
+// Loop from 36 to 0 (from z to a and 9 to 0 in Base36).
+var i = 36
+while (i--) {
+  // 36 is radix. Number.prototype.toString(36) returns number
+  // in Base36 representation. Base36 is like hex, but it uses 0–9 and a-z.
+  url += i.toString(36)
+}
+// Loop from 36 to 10 (from Z to A in Base36).
+i = 36
+while (i-- - 10) {
+  url += i.toString(36).toUpperCase()
+}
 
-  // ASCII codes for A...Z
-  i += 8, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1,
-
-  // ASCII codes for a...z
-  i += 7, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1
-)
-
 module.exports = function (size) {
-  size = size || 21
   var id = ''
-  var bytes = crypto.getRandomValues(new Uint8Array(size))
+  var bytes = crypto.getRandomValues(new Uint8Array(size || 21))
+  i = size || 21
+
   // Compact alternative for `for (var i = 0; i < size; i++)`
-  while (size--) {
+  while (i--) {
     // We can’t use bytes bigger than the alphabet. 63 is 00111111 bitmask.
@@ -40,5 +35,5 @@ // This mask reduces random byte 0-255 to 0-63 values.
     // because bitmask trim bytes exact to alphabet size.
-    id += url[bytes[size] & 63]
+    id += url[bytes[i] & 63]
   }
   return Promise.resolve(id)
 }

CHANGELOG.md

 # Change Log
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## 2.1.11
+* Reduce size (by Anton Evzhakov).
+
 ## 2.1.10
@@ -5,0 +8,0 @@ * Reduce size by 10% (by Anton Khlynovskiy).

index.browser.js

@@ -24,30 +24,25 @@ // This file replaces `index.js` in bundlers like webpack or Rollup,
 // This alphabet uses a-z A-Z 0-9 _- symbols.
-// Despite the fact the source code is quite long, its entropy
-// is low and there are lots of duplicates - just what compressors
-// like GZIP and Brotli likes the best.
-var i
-var url = '_-' + String.fromCharCode(
-  // ASCII codes for 0...9
-  i = 48, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1,
+// Symbols are generated for smaller size.
+// -_zyxwvutsrqponmlkjihgfedcba9876543210ZYXWVUTSRQPONMLKJIHGFEDCBA
+var url = '-_'
+// Loop from 36 to 0 (from z to a and 9 to 0 in Base36).
+var i = 36
+while (i--) {
+  // 36 is radix. Number.prototype.toString(36) returns number
+  // in Base36 representation. Base36 is like hex, but it uses 0–9 and a-z.
+  url += i.toString(36)
+}
+// Loop from 36 to 10 (from Z to A in Base36).
+i = 36
+while (i-- - 10) {
+  url += i.toString(36).toUpperCase()
+}
 
-  // ASCII codes for A...Z
-  i += 8, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1,
-
-  // ASCII codes for a...z
-  i += 7, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1
-)
-
 module.exports = function (size) {
-  size = size || 21
   var id = ''
-  var bytes = crypto.getRandomValues(new Uint8Array(size))
+  var bytes = crypto.getRandomValues(new Uint8Array(size || 21))
+  i = size || 21
+
   // Compact alternative for `for (var i = 0; i < size; i++)`
-  while (size--) {
+  while (i--) {
     // We can’t use bytes bigger than the alphabet. 63 is 00111111 bitmask.
@@ -57,5 +52,5 @@ // This mask reduces random byte 0-255 to 0-63 values.
     // because bitmask trim bytes exact to alphabet size.
-    id += url[bytes[size] & 63]
+    id += url[bytes[i] & 63]
   }
   return id
 }

non-secure/index.js

 // This alphabet uses a-z A-Z 0-9 _- symbols.
-// Despite the fact the source code is quite long, its entropy
-// is low and there are lots of duplicates - just what compressors
-// like GZIP and Brotli likes the best.
-var i
-var url = '_-' + String.fromCharCode(
-  // ASCII codes for 0...9
-  i = 48, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1,
+// Symbols are generated for smaller size.
+// -_zyxwvutsrqponmlkjihgfedcba9876543210ZYXWVUTSRQPONMLKJIHGFEDCBA
+var url = '-_'
+// Loop from 36 to 0 (from z to a and 9 to 0 in Base36).
+var i = 36
+while (i--) {
+  // 36 is radix. Number.prototype.toString(36) returns number
+  // in Base36 representation. Base36 is like hex, but it uses 0–9 and a-z.
+  url += i.toString(36)
+}
+// Loop from 36 to 10 (from Z to A in Base36).
+i = 36
+while (i-- - 10) {
+  url += i.toString(36).toUpperCase()
+}
 
-  // ASCII codes for A...Z
-  i += 8, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1,
-
-  // ASCII codes for a...z
-  i += 7, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1
-)
-
 /**
@@ -40,6 +34,6 @@ * Generate URL-friendly unique ID. This method use non-secure predictable
 module.exports = function (size) {
-  size = size || 21
   var id = ''
+  i = size || 21
   // Compact alternative for `for (var i = 0; i < size; i++)`
-  while (size--) {
+  while (i--) {
     // `| 0` is compact and faster alternative for `Math.floor()`
@@ -46,0 +40,0 @@ id += url[Math.random() * 64 | 0]

package.json

 {
   "name": "nanoid",
-  "version": "2.1.10",
-  "description": "A tiny (127 bytes), secure URL-friendly unique string ID generator",
+  "version": "2.1.11",
+  "description": "A tiny (119 bytes), secure URL-friendly unique string ID generator",
   "keywords": [
@@ -6,0 +6,0 @@ "uuid",

README.md

@@ -8,3 +8,3 @@ # Nano ID
 
-* **Small.** 127 bytes (minified and gzipped). No dependencies.
+* **Small.** 119 bytes (minified and gzipped). No dependencies.
   [Size Limit] controls the size.
@@ -67,3 +67,3 @@ * **Safe.** It uses cryptographically strong random APIs.
 2. Nano ID code is 4 times less than `uuid/v4` package:
-   127 bytes instead of 435.
+   119 bytes instead of 435.
 3. Because of memory allocation tricks, Nano ID is 16% faster than UUID.
@@ -70,0 +70,0 @@

url.js

@@ -6,4 +6,2 @@ // This alphabet uses a-z A-Z 0-9 _- symbols.
 
-var i
-
 /**
@@ -19,18 +17,13 @@ * URL safe symbols.
  */
-module.exports = '_-' + String.fromCharCode(
-  // ASCII codes for 0...9
-  i = 48, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1,
 
-  // ASCII codes for A...Z
-  i += 8, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1,
-
-  // ASCII codes for a...z
-  i += 7, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1, i += 1,
-  i += 1, i += 1
-)
+// This alphabet uses a-z A-Z 0-9 _- symbols.
+// Symbols are generated for smaller size.
+// -_zyxwvutsrqponmlkjihgfedcba9876543210ZYXWVUTSRQPONMLKJIHGFEDCBA
+module.exports = '-_'
+var i = 36
+while (i--) {
+  // 36 is radix. Number.prototype.toString(36) returns number
+  // in Base36 representation. Base36 is like hex, but it uses 0–9 and a-z.
+  module.exports += i.toString(36)
+  i > 9 && (module.exports += i.toString(36).toUpperCase())
+}

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Worsened metrics

Total package byte prevSize

35842

decreased by-3.11%

Lines of code

560

decreased by-2.95%

No dependency changes