ES6 Symbols, in your ES5.
If Symbol is already defined, it will be used. Otherwise, this implements as much of the Symbol spec as is possible with plain JavaScript.
var Symbol = require('symbol');
var key = Symbol();
var obj = {};
obj[key] = 'foo';
console.log(obj[key]); // 'foo'
console.log(Object.keys(obj)); // []
FAQs
ES6 Symbols in your ES5.
The npm package symbol receives a total of 137,972 weekly downloads. As such, symbol popularity was classified as popular.
We found that symbol demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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