isPrefixOf.js « helpers « es-abstract « node_modules - github.com/npm/cli.git - Unnamed repository; edit this file 'description' to name the repository.

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isPrefixOf.js « helpers « es-abstract « node_modules - github.com/npm/cli.git - Unnamed repository; edit this file 'description' to name the repository.

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path: root/node_modules/es-abstract/helpers/isPrefixOf.js

blob: b67d640567abf0da9ee456ebbcd96d627b2b268d (plain)

'use strict';

var $strSlice = require('../helpers/callBound')('String.prototype.slice');

module.exports = function isPrefixOf(prefix, string) {
	if (prefix === string) {
		return true;
	}
	if (prefix.length > string.length) {
		return false;
	}
	return $strSlice(string, 0, prefix.length) === prefix;
};