Sha256: b9143323e7790683229c6ce9a1f93fbd5b17e22b966679f602b066d9371fe813
Contents?: true
Size: 846 Bytes
Versions: 62
Compression:
Stored size: 846 Bytes
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var callBound = require('call-bind/callBound');
var $charCodeAt = callBound('String.prototype.charCodeAt');
var $numberToString = callBound('Number.prototype.toString');
var $toLowerCase = callBound('String.prototype.toLowerCase');
var $strSlice = callBound('String.prototype.slice');
// https://262.ecma-international.org/9.0/#sec-unicodeescape
module.exports = function UnicodeEscape(C) {
if (typeof C !== 'string' || C.length !== 1) {
throw new $TypeError('Assertion failed: `C` must be a single code unit');
}
var n = $charCodeAt(C, 0);
if (n > 0xFFFF) {
throw new $TypeError('`Assertion failed: numeric value of `C` must be <= 0xFFFF');
}
return '\\u' + $strSlice('0000' + $toLowerCase($numberToString(n, 16)), -4);
};
Version data entries
62 entries across 30 versions & 4 rubygems