I don’t think I ever mentioned https://snippet.zone here. It’s just another actionsnippet-like site I created a few years ago… I don’t update it all that frequently but it has many snippets mostly written in js.
recent fork of a snippet.zone that I used in a short…
Here’s a short showing something I did for genuary 2022…
Creating a dictionary type object with ES6 Symbols is easy. Yes we have Maps and WeakMaps but this is still interesting for a variety of reasons… Being able to use objects as keys in another object (dictionary) has many great uses…. So how do you use Symbols like this?
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let a ={ id: Symbol('key')},
b ={ id: Symbol('key')};
let dictionary ={[a.id]:'value by obj a',[b.id]:'value by obj b'};
console.log(dictionary[a.id]);
console.log(dictionary[b.id]);// outputs:// 'value by obj a'// 'value by obj b'
By using either object a or object b’s `id` symbol, our dictionary points to another value. This old AS3 snippet is similar: