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Diffstat (limited to 'src/node_modules/es-abstract/2019/IsRegExp.js')
-rw-r--r-- | src/node_modules/es-abstract/2019/IsRegExp.js | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/node_modules/es-abstract/2019/IsRegExp.js b/src/node_modules/es-abstract/2019/IsRegExp.js new file mode 100644 index 0000000..fdf2323 --- /dev/null +++ b/src/node_modules/es-abstract/2019/IsRegExp.js @@ -0,0 +1,24 @@ +'use strict'; + +var GetIntrinsic = require('../GetIntrinsic'); + +var $match = GetIntrinsic('%Symbol.match%', true); + +var hasRegExpMatcher = require('is-regex'); + +var ToBoolean = require('./ToBoolean'); + +// https://ecma-international.org/ecma-262/6.0/#sec-isregexp + +module.exports = function IsRegExp(argument) { + if (!argument || typeof argument !== 'object') { + return false; + } + if ($match) { + var isRegExp = argument[$match]; + if (typeof isRegExp !== 'undefined') { + return ToBoolean(isRegExp); + } + } + return hasRegExpMatcher(argument); +}; |