TextEncoder
and use it to encode val
. Pass its value to SubtleCrypto.digest()
to generate a digest of the given data.DataView.prototype.getUint32()
to read data from the resolved ArrayBuffer
.Number.prototype.toString(16)
. Add the data to an array using Array.prototype.push()
.Array.prototype.join()
to combine values in the array of hexes
into a string.const hashBrowser = val => crypto.subtle .digest('SHA-256', new TextEncoder('utf-8').encode(val)) .then(h => { let hexes = [], view = new DataView(h); for (let i = 0; i < view.byteLength; i += 4) hexes.push(('00000000' + view.getUint32(i).toString(16)).slice(-8)); return hexes.join(''); });
hashBrowser( JSON.stringify({ a: 'a', b: [1, 2, 3, 4], foo: { c: 'bar' } }) ).then(console.log); // '04aa106279f5977f59f9067fa9712afc4aedc6f5862a8defc34552d8c7206393'
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