CODEWITHSUNDEEP
javascript
Grigoriy
Grigoriy

Reputation: 51

separating numbers into sum of positional digits in javascript

I'm working with freecodecamp studies and need to find a way to turn a number into sum of positional digits like [1234] to [1000,200,30,4]. Code looks like this:

for(var i=0;i<newArr.length;i++){
    var order = newArr.length-1 - i;
    newArr.splice(i,1,newArr[i]*1e(order));
}

Here newArr will be 1234. Node gives error: invalid token 1e(order). Need some advice how to make it right.

Upvotes: 1

Views: 69

Answers (3)

lsv
lsv

Reputation: 786

var a = 1234
b = []
while(a>0){
	b.unshift(a%10 * (10 ** b.length))
	a = parseInt(a/10)
}
console.log(b)

Upvotes: 1

Pranav Patel
Pranav Patel

Reputation: 1559

Number.prototype.padRight = function (n,str) {
    return (this < 0 ? '-' : '') + (Math.abs(this)+ Array(n-String(Math.abs(this)).length+1).join(str||'0'));
}
var digits = "1234"
var tempCounter= digits.length;
var result=[];
for(var i=0;i<digits.length;i++,tempCounter--){
    result.push(parseInt(digits[i]).padRight(tempCounter))
}
console.log(result);

Upvotes: 0

Vineesh
Vineesh

Reputation: 3782

I think you can use the below logic

 var n = 123456;
    n=n.toString();
    var arr = n.split("");
    var b = arr.map(function(x,i) {
       return x * Math.pow(10, (arr.length-i-1));;
    });
    console.log(b);

Upvotes: 1

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