/home/techb158/balavpn.abdallabala.com/node_modules/is-symbol
Edit: /home/techb158/balavpn.abdallabala.com/node_modules/is-symbol/index.js (1030B)
'use strict';
var callBound = require('call-bound');
var $toString = callBound('Object.prototype.toString');
var hasSymbols = require('has-symbols')();
var safeRegexTest = require('safe-regex-test');
if (hasSymbols) {
var $symToStr = callBound('Symbol.prototype.toString');
var isSymString = safeRegexTest(/^Symbol\(.*\)$/);
/** @type {(value: object) => value is Symbol} */
var isSymbolObject = function isRealSymbolObject(value) {
if (typeof value.valueOf() !== 'symbol') {
return false;
}
return isSymString($symToStr(value));
};
/** @type {import('.')} */
module.exports = function isSymbol(value) {
if (typeof value === 'symbol') {
return true;
}
if (!value || typeof value !== 'object' || $toString(value) !== '[object Symbol]') {
return false;
}
try {
return isSymbolObject(value);
} catch (e) {
return false;
}
};
} else {
/** @type {import('.')} */
module.exports = function isSymbol(value) {
// this environment does not support Symbols.
return false && value;
};
}