2016-01-23-converting-to-number-fast-way.md

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post	Converting to number fast way	23	sonnyt	http://twitter.com/sonnyt	Converting strings to numbers is extremely common. The easiest and fastest way to achieve that would be using the + operator.	/en/converting-to-number-fast-way/	en javascript

Converting strings to numbers is extremely common. The easiest and fastest (jsPerf) way to achieve that would be using the + (plus) operator.

var one = '1';

var numberOne = +one; // Number 1

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

var one = '1';

var negativeNumberOne = -one; // Number -1