javascript hexadecimal color convert into rgb function

Question

I am new in Javascript. I want to create a function which will take a hexadecimal color code and it will convert it to rgb(xx,xx,xx). My code is found below

function my(a){
var first = a[1] + a[2];
var second = a[3] + [4];
var third = a[5] + a[6];
var res = [first,second,third];
for(var i = 0; i <res.length; i++){
res[i] = parseInt(res[i],16);
}
return res;
}

First and third array element is converting correctly except second array element. I don't why, can anyone tell me why?

@manonthemat But isn't the hex started with `#`? So element at index 0 isn't a number. — E. Sundin, Dec 06 '16 at 22:20
So `a` is a string in the form of `#ccdd11` then? Well, that makes sense then. — manonthemat, Dec 06 '16 at 22:22
yes hex number start with # so i started from 1. yes i treated "a" as a string — user6787493, Dec 07 '16 at 05:13

score 1 · Accepted Answer · answered Dec 06 '16 at 22:24

1

You had a typo in assigning second. You had a[3] + [4], when it should be a[3] + a[4].

function my(a) {
    var first = a[1] + a[2];
    var second = a[3] + a[4];
    var third = a[5] + a[6];
    var res = [first,second,third];
    for(var i = 0; i < res.length; i++){
        res[i] = parseInt(res[i],16);
    }
    return res;
}

answered Dec 06 '16 at 22:24

manonthemat

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thank you so much for your time – user6787493 Dec 07 '16 at 05:20

javascript hexadecimal color convert into rgb function

1 Answers1