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node.jsでmd5を計算

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標準ライブラリのcryptoを使う。

// @flow
'use strict'
const crypto = require('crypto')

function md5hex(str /*: string */) {
  const md5 = crypto.createHash('md5')
  return md5.update(str, 'binary').digest('hex')
}

const hello = 'hello'
const hello2 = 'hello2'

console.log(md5hex(hello))
// 5d41402abc4b2a76b9719d911017c592
console.log(md5hex(hello2))
// 6e809cbda0732ac4845916a59016f954

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