Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
replace hexoid with equivalent functionality (#441)
- Loading branch information
Showing
5 changed files
with
100 additions
and
5 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,18 @@ | ||
'use strict' | ||
|
||
const { Suite } = require('benchmark') | ||
const { generateId } = require('../lib/generateId') | ||
|
||
const suite = new Suite() | ||
|
||
suite.add('id', generateId) | ||
|
||
suite | ||
.on('cycle', function (event) { | ||
console.log(String(event.target)) | ||
}) | ||
.on('complete', function () { | ||
console.log('Fastest is ' + this.filter('fastest').map('name')) | ||
console.log('Slowest is ' + this.filter('slowest').map('name')) | ||
}) | ||
.run() |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,44 @@ | ||
'use strict' | ||
|
||
const HEX = [ | ||
'00', '01', '02', '03', '04', '05', '06', '07', '08', '09', '0a', '0b', '0c', '0d', '0e', '0f', | ||
'10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '1a', '1b', '1c', '1d', '1e', '1f', | ||
'20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '2a', '2b', '2c', '2d', '2e', '2f', | ||
'30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '3a', '3b', '3c', '3d', '3e', '3f', | ||
'40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '4a', '4b', '4c', '4d', '4e', '4f', | ||
'50', '51', '52', '53', '54', '55', '56', '57', '58', '59', '5a', '5b', '5c', '5d', '5e', '5f', | ||
'60', '61', '62', '63', '64', '65', '66', '67', '68', '69', '6a', '6b', '6c', '6d', '6e', '6f', | ||
'70', '71', '72', '73', '74', '75', '76', '77', '78', '79', '7a', '7b', '7c', '7d', '7e', '7f', | ||
'80', '81', '82', '83', '84', '85', '86', '87', '88', '89', '8a', '8b', '8c', '8d', '8e', '8f', | ||
'90', '91', '92', '93', '94', '95', '96', '97', '98', '99', '9a', '9b', '9c', '9d', '9e', '9f', | ||
'a0', 'a1', 'a2', 'a3', 'a4', 'a5', 'a6', 'a7', 'a8', 'a9', 'aa', 'ab', 'ac', 'ad', 'ae', 'af', | ||
'b0', 'b1', 'b2', 'b3', 'b4', 'b5', 'b6', 'b7', 'b8', 'b9', 'ba', 'bb', 'bc', 'bd', 'be', 'bf', | ||
'c0', 'c1', 'c2', 'c3', 'c4', 'c5', 'c6', 'c7', 'c8', 'c9', 'ca', 'cb', 'cc', 'cd', 'ce', 'cf', | ||
'd0', 'd1', 'd2', 'd3', 'd4', 'd5', 'd6', 'd7', 'd8', 'd9', 'da', 'db', 'dc', 'dd', 'de', 'df', | ||
'e0', 'e1', 'e2', 'e3', 'e4', 'e5', 'e6', 'e7', 'e8', 'e9', 'ea', 'eb', 'ec', 'ed', 'ee', 'ef', | ||
'f0', 'f1', 'f2', 'f3', 'f4', 'f5', 'f6', 'f7', 'f8', 'f9', 'fa', 'fb', 'fc', 'fd', 'fe', 'ff' | ||
] | ||
|
||
const random = Math.random | ||
|
||
function seed () { | ||
return ( | ||
HEX[0xff * random() | 0] + | ||
HEX[0xff * random() | 0] + | ||
HEX[0xff * random() | 0] + | ||
HEX[0xff * random() | 0] + | ||
HEX[0xff * random() | 0] + | ||
HEX[0xff * random() | 0] + | ||
HEX[0xff * random() | 0] | ||
) | ||
} | ||
|
||
module.exports.generateId = (function generateIdFn () { | ||
let num = 0 | ||
let str = seed() | ||
return function generateId () { | ||
return (num === 255) // eslint-disable-line no-return-assign | ||
? (str = seed()) + HEX[num = 0] | ||
: str + HEX[++num] | ||
} | ||
})() |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,35 @@ | ||
'use strict' | ||
|
||
const { test } = require('tap') | ||
const { generateId } = require('../lib/generateId') | ||
|
||
test('returns', t => { | ||
t.plan(3) | ||
t.type(generateId, 'function', 'is a function') | ||
t.type(generateId(), 'string', '~> returns a string') | ||
t.equal(generateId().length, 16, '~> has 16 characters (default)') | ||
}) | ||
|
||
test('length', t => { | ||
const iterations = 1e3 | ||
t.plan(iterations) | ||
|
||
let i = 0 | ||
let tmp = '' | ||
for (; i < iterations; ++i) { | ||
tmp = generateId() | ||
t.equal(tmp.length, 16, `"${tmp}" is 16 characters`) | ||
} | ||
}) | ||
|
||
test('unique /1', t => { | ||
t.plan(1) | ||
t.not(generateId(), generateId(), '~> single') | ||
}) | ||
|
||
test('unique /2', t => { | ||
t.plan(1) | ||
const items = new Set() | ||
for (let i = 5e6; i--;) items.add(generateId()) | ||
t.equal(items.size, 5e6, '~> 5,000,000 unique ids') | ||
}) |