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Ladvace/symbols.js

Created May 31, 2022 10:13
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symbols.js
Symbol('bar') === Symbol('bar') // false, each of them it's a unique id, the "bar" it's just a description and not an unique key
Symbol.for('foo'); // create a new global symbol
Symbol.for('foo'); // retrieve the already created symbol
Symbol.for('bar') === Symbol.for('bar') // true
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