js cast char to int code example

Example 1: how to convert char to number in js

// the first parameter is the index of the string to convert to an ascii code
"A".charCodeAt(0);
//output: 65

Example 2: convert a string to number in javascript

var x = parseInt("1000", 10); // you want to use radix 10
    // so you get a decimal number even with a leading 0 and an old browser ([IE8, Firefox 20, Chrome 22 and older][1])

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