Truncate a String help!

JavaScript
1

Tell us what’s happening:
Why this code is not working

Your code so far


function truncateString(str, num) {
  // Clear out that junk in your trunk
  if (str.length > num && num > 3) {
    return str.slice(0, (num - 3)) + '...';
  } else if (str.length > num && num <= 3) {
    return str.slice(0, num) + '...';
  } else {
    return str;
  }

}
truncateString("A-tisket a-tasket A green and yellow basket", 11);

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User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36.

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

2

you are truncating too much of the string
for eg. your code fails the test for
truncateString(“A-tisket a-tasket A green and yellow basket”, 8) should return “A-tisket…”.

And you can see below why: