Collection of hash algorithms for frontend/Javascript development

hash.md

Hash and UID tools

hash

• hashCode
• simpleHash
• hash-sum
• js-xxhash Web Assembly version
• object-hash
• SubtleCrypto digest (browser built-in SHA1, SHA256)
• SHA1 (Stanford Javascript Crypto Library)
• SHA256 (Stanford Javascript Crypto Library)

unique id

• nano ID
• CUID (Alternative)
• UUID
• Stackoverflow ideas

// arbitrary length numeric value
const uid = (length=16) => {
    return parseInt(Math.ceil(Math.random() * Date.now()).toPrecision(length).toString().replace(".", ""));
}

// long numeric value
const uid = function () {
    return Date.now().toString() + Math.floor(Math.pow(10, 12) + Math.random() * 9*Math.pow(10, 12));
}

// UUID v4 eg. 9f3bbc61-26ca-447a-89ac-f5c14d34d1cb
function uuidv4 () {
	return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c =>
		(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
	);
}

slug

• sluggish

further reading

• metrohash