devsite/node_modules/has-property-descriptors/index.js
2024-07-07 18:49:38 -07:00

23 lines
588 B
JavaScript

'use strict';
var $defineProperty = require('es-define-property');
var hasPropertyDescriptors = function hasPropertyDescriptors() {
return !!$defineProperty;
};
hasPropertyDescriptors.hasArrayLengthDefineBug = function hasArrayLengthDefineBug() {
// node v0.6 has a bug where array lengths can be Set but not Defined
if (!$defineProperty) {
return null;
}
try {
return $defineProperty([], 'length', { value: 1 }).length !== 1;
} catch (e) {
// In Firefox 4-22, defining length on an array throws an exception.
return true;
}
};
module.exports = hasPropertyDescriptors;