Sha256: f2f1d56d67b40a04c7adc772c7c534a0f5dedb38fab0cdbcde58f8ea162b1cc0
Contents?: true
Size: 1.08 KB
Versions: 54
Compression:
Stored size: 1.08 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/callBound');
var $TypeError = GetIntrinsic('%TypeError%');
var $RegExpPrototype = GetIntrinsic('%RegExp.prototype%');
var SameValue = require('./SameValue');
var Type = require('./Type');
var $indexOf = callBound('String.prototype.indexOf');
var hasRegExpMatcher = require('is-regex');
var getFlags = require('regexp.prototype.flags');
// https://262.ecma-international.org/13.0/#sec-regexphasflag
module.exports = function RegExpHasFlag(R, codeUnit) {
if (Type(codeUnit) !== 'String' || codeUnit.length !== 1) {
throw new $TypeError('Assertion failed: `string` must be a code unit - a String of length 1');
}
if (Type(R) !== 'Object') {
throw new $TypeError('Assertion failed: Type(R) is not Object');
}
if (!hasRegExpMatcher(R)) { // step 2
if (SameValue(R, $RegExpPrototype)) {
return void undefined; // step 2.a
}
throw new $TypeError('`R` must be a RegExp object'); // step 2.b
}
var flags = getFlags(R); // step 3
return $indexOf(flags, codeUnit) > -1; // steps 4-5
};
Version data entries
54 entries across 27 versions & 2 rubygems