lodash/padStart.js at master · lodash/lodash

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	import createPadding from './.internal/createPadding.js'
	import stringSize from './.internal/stringSize.js'

	/**
	* Pads `string` on the left side if it's shorter than `length`. Padding
	* characters are truncated if they exceed `length`.
	*
	* @since 4.0.0
	* @category String
	* @param {string} [string=''] The string to pad.
	* @param {number} [length=0] The padding length.
	* @param {string} [chars=' '] The string used as padding.
	* @returns {string} Returns the padded string.
	* @example
	*
	* padStart('abc', 6)
	* // => ' abc'
	*
	* padStart('abc', 6, '_-')
	* // => '_-_abc'
	*
	* padStart('abc', 2)
	* // => 'abc'
	*/
	function padStart(string, length, chars) {
	const strLength = length ? stringSize(string) : 0
	return (length && strLength < length)
	? (createPadding(length - strLength, chars) + string)
	: (string \|\| '')
	}

	export default padStart

lodash / lodash Public