Small helpers: GUID, HASH, parseConfig, format and group

jComponent 20 · jcomponent@20 jcomponentfrontendutilities Executed with jComponent 20

jComponent adds a few helpers that save you from loading a utility library:

GUID(length) returns a random id; HASH(value) returns a numeric hash of any value
'key:value;key2:value2'.parseConfig() parses a configuration string into an object, converting numbers and booleans
'{0} is {1}'.format('a', 'b') replaces {index} placeholders
number.format(decimals, thousandsSeparator, decimalSeparator) and date.format('yyyy-MM-dd') format numbers and dates
array.group('field') groups objects by a field into [{ name, items }]
PARSE(json) parses JSON and converts date strings into Date objects; date.add('1 day') moves a date

public/index.html

<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8" />
	<title>jComponent</title>
	<link rel="stylesheet" href="//cdn.componentator.com/spa.min@20.css" />
	<script src="//cdn.componentator.com/spa.min@20.js"></script>
</head>
<body>
	<p class="out"></p>

	<script>

		window.sample = {
			guid: GUID(12),
			samehash: HASH('total') === HASH('total'),
			config: 'size:3;active:true;name:Peter'.parseConfig(),
			text: '{0} is {1}'.format('Total.js', 'great'),
			price: (1234.5).format(2),
			date: new Date(2026, 9, 16).format('yyyy-MM-dd'),
			groups: [{ type: 'a', n: 1 }, { type: 'b', n: 2 }, { type: 'a', n: 3 }].group('type'),
			parsed: PARSE('{"created":"2026-10-16T10:00:00.000Z"}').created instanceof Date,
			tomorrow: new Date(2026, 9, 16).add('1 day').getDate()
		};

	</script>

</body>
</html>

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