Home Only using for loops. How do you build a function that performs like the join method?

Questions

Only using for loops. How do you build a function that performs like the join method?

February 21, 2023

const array = [
 "Devslopes",
 "is",
 "teaching",
 "me",
 "FOR",
 "loops",
 "and",
 "functions",
 "!"
];

const separator = " ";

function joinToString(array, separator) {
 for (let ele of array) {
  let combine = ele + separator;
 }
 return combine;
}

What I am trying to do is take the separator and add it to the end of each element of the array. In this case the separator is a space and I am trying to have the elements spaced out. The function is my current one. I am stuck on just getting each element to have a space on the end of it. That is it. I need to have a space on every element but the last one, and then I need to print the sentence or the elements of the array.

>Solution :

You were almost there.

If you can’t use join, you can use string concatenation, and in your return just apply a slice so the extra separator at the end is removed.

Also, your array has semicolons, but they should be commas.

const array = [
 "Devslopes",
 "is",
 "teaching",
 "me",
 "FOR",
 "loops",
 "and",
 "functions",
 "!"
];

const separator = " ";

function joinToString(array, separator) {
 let output = "";
 
 for (let ele of array) {
  output += ele + separator;
 }
 return output.slice(0, -1);
}

console.log(joinToString(array, separator))