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Ilya Kantor 2019-08-18 09:44:30 +03:00
parent 28cc5c82c0
commit 5d1037cbd0
5 changed files with 15 additions and 14 deletions
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1-js/04-object-basics/03-symbol/article.md
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@ -52,7 +52,7 @@ alert(id); // TypeError: Cannot convert a Symbol value to a string
That's a "language guard" against messing up, because strings and symbols are fundamentally different and should not occasionally convert one into another.
If we really want to show a symbol, we need to call `.toString()` on it, like here:
If we really want to show a symbol, we need to explicitly call `.toString()` on it, like here:
```js run
let id = Symbol("id");
*!*
@ -60,7 +60,7 @@ alert(id.toString()); // Symbol(id), now it works
*/!*
```
Or get `symbol.description` property to get the description only:
Or get `symbol.description` property to show the description only:
```js run
let id = Symbol("id");
*!*
@ -133,7 +133,7 @@ let id = Symbol("id");
let user = {
name: "John",
*!*
[id]: 123 // not just "id: 123"
[id]: 123 // not "id: 123"
*/!*
};
```