#1473 Updated chapter 3 - Contents section - Object key name types #1473
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Proposed a change in the text to say that when Symbols are used as keys in objects, it's not coerced into a string primitive.
```
var obj = {}
var firstSymbol = Symbol('hello');
var secondSymbol = Symbol('hello');
console.log(firstSymbol); // Symbol(hello)
console.log(secondSymbol); // Symbol(hello)
obj[firstSymbol] = 'first value';
obj[secondSymbol] = 'second value';
console.log(obj[firstSymbol]); // first value
console.log(obj[secondSymbol]); // second value
console.log(obj["Symbol(hello)"]) // undefined
```
steevevadakkumchery
changed the title
ab2d2
reviewed
May 31, 2019
this & object prototypes/ch3.md
Outdated
| @@ -146,7 +146,7 @@ if (wantA) { | |||
| console.log( myObject[idx] ); // 2 | |||
| ``` | |||
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| In objects, property names are **always** strings. If you use any other value besides a `string` (primitive) as the property, it will first be converted to a string. This even includes numbers, which are commonly used as array indexes, so be careful not to confuse the use of numbers between objects and arrays. | |||
| In objects, property names are `strings` expect when using the primitive type `symbol`. If you use any other values besides `string` or `symbol` (primitives) as the property, it will first be converted to a string. This even includes numbers, which are commonly used as array indexes, so be careful not to confuse the use of numbers between objects and arrays. | |||
Fixed typo in PR
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Proposed a change in the text to say that when Symbols are used as keys in objects, it's not coerced into a string primitive.
Yes, I promise I've read the Contributions Guidelines (please feel free to remove this line).