is-symbol

2018-12-08 admin

is-symbol是什么

什么是is-symbol,Determine if a value is an ES6 Symbol or not.

is-symbol使用教程帮助文档

#is-symbol <sup>Version Badge</sup>

Build Status dependency status dev dependency status License Downloads

npm badge

browser support

Is this an ES6 Symbol value?

Example

var isSymbol = require('is-symbol');
assert(!isSymbol(function () {}));
assert(!isSymbol(null));
assert(!isSymbol(function* () { yield 42; return Infinity; });

assert(isSymbol(Symbol.iterator));
assert(isSymbol(Symbol('foo')));
assert(isSymbol(Symbol.for('foo')));
assert(isSymbol(Object(Symbol('foo'))));

Tests

Simply clone the repo, npm install, and run npm test

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