Truncate a String problems with solving

JavaScript
1

Hey,

Can somebody help me with this?

I’ve been doing a couple of exercises that worked on the console but don’t work for solving the excercise.

Thank you.

This is the code:

Your code so far


function truncateString(str, num) {
  let str1 = str.split('')
  let result = [];

  for(let i=0; i<num; i++) {
    result.push(str1[i]);
  }
  let f ="";
  f = result.join('');
  console.log(f+'...');

}

truncateString("A-tisket a-tasket A green and yellow basket", 8);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-algorithm-scripting/truncate-a-string

2

your function is not returning anything
returning something with return is different from using console.log()

3

hey :wave:
You don’t need to split the given string. You should check if it is longer than the num argument and if so, then you need to take the first n chars from str (you can use String’s .splice() method here) and append to it '...'.
If str is not longer than num, then simply return str.

4

Thank you I understand that point, however, why my code still works and doesn’t solve the problem? I used console.log() for debugging.

5

Do you have a return statement in the code you are using to try to pass the challenge?

6

You don’t append '...' to strings which are longer than n. You can add something like

if (str.length > 8) f += '...';

And at the end you need to add the return statement to your function, something like:

return f;