Run results for: Number() vs parseFloat()

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3424.0 Safari/537.36

Browser: Chrome 68

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

-0

1298.3M/s

1295.4M/s

parseFloat

8.7M/s

Number

7.3M/s

String concat1

2.6M/s

String concat2

2.6M/s

View exact numbers

Script Preparation code:

const a = 1;
const b = 2;

Tests:

Number
var number = Number('0.54'); var number2 = Number('1.24');
parseFloat
var parse = parseFloat('0.54'); var parse2 = parseFloat('1.24');
String concat1
var parse = Number(`${a}.${b}`); var parse2 = Number(`${a}.${b}`);
String concat2
var parse = Number(a + '.' + b); var parse2 = Number(a + '.' + b);
-0
var parse = '0.54' - 0; var parse2 = '1.24' - 0;
*1
var parse = '0.54' * 1; var parse2 = '1.24' * 1;