Sometimes we need to convert <code>Strings</code> to <code>Numbers</code>. The easiest and fastest way to convert strings to numbers would be using the <code>+ (plus)</code> operator. Let's see.
<pre><code>let fiveAsString = '5'
let fiveAsNumber = +fiveAsString
// Now the fiveAsNumber var contains 5
</code></pre>You can also use the <code>- (minus)</code> operator which type-converts the value into number but also negates it.
<pre><code>let fiveAsString = '5'
let negativeNumberFive = -fiveAsString
// Now the negativeNumberFive var contains. -5
</code></pre>

Sometimes we need to convert `Strings` to `Numbers`. The easiest and fastest way to convert strings to numbers would be using the `+ (plus)` operator. Let's see.


```
let fiveAsString = '5'
let fiveAsNumber = +fiveAsString
// Now the fiveAsNumber var contains 5
``` 

You can also use the `- (minus)` operator which type-converts the value into number but also negates it.

```
let fiveAsString = '5'
let negativeNumberFive = -fiveAsString
// Now the negativeNumberFive var contains. -5
```





javascript, string to number, fast, conversion, string to number conversion

Dayán Pérez Bárzaga's Blog

Dayán Pérez Bárzaga's Blog

JavaScript - String to Number fast way

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