Remove String Spaces (8kyu) [JavaScript]

Chek kata on Codewars

Description:

Simple, remove the spaces from the string, then return the resultant string.

Solution 1.1

Let's start with a loop solution.

function noSpace(x) {
    let newStr = ''
    for(let i = 0; i < x.length; i++) {
        if(x[i] !== " "){
            newStr += x[i]
        }
    }
    return newStr
}

Solution 2.1

Let's solve it with regular expression.

function noSpace(x){
    return x.replace(/ /g, '')
}

Solution 2.2

function noSpace(x){
    return x.replace(/\s/g, '')
}

Solution 3.1

Let's solve it with split and join.

function noSpace(x){
  return x.split(" ").join('')
}

Solution 3.2

Let's solve it with split and filter.

function noSpace(x) {
    return x.split("").filter(i => i !== ' ').join('')
}

Solution 3.3

Let's solve it with split and reducer.

function noSpace(x) {
    return x.split(" ").reduce((a, c) => a + c)
}