Source @ github

parseInt

parseInt – Parses a string as an integer

Description

parseInt(string string, integer radix)

Parameters

Name Description Type Default Optional
string string No
radix A numeric value between 2 and 36 specifying the representation. integer 10 No

Return values

Returns an integer representation of the string.

Examples

Example #1 – parseInt example
console.log(parseInt('123 String'));   // 123
console.log(parseInt('String 123'));   // NaN
console.log(parseInt('12'));           // 12
console.log(parseInt(12));             // 12
console.log(parseInt('12.42'));        // 12

console.log(parseInt(Infinity));       // NaN
console.log(parseInt('Infinity'));     // NaN

console.log(parseInt('255', 8));       // 173

See also

External references