Basic Algorithm Scripting - Truncate a String

JavaScript
1

At least my code works as long as the number <= string.length.
For exceeding numbers (num > string.length) the console shows the string + undefined.
So… what can i do ?
Have seen the given solutions of this exercise , but i have to follow my own thoughts.

function truncateString(str, num) {
  let newStatement = "";
  for (let i=0; i<=num; i++) {
    if (i!==num) {newStatement+=str[i]}
    else (newStatement+="...");
    console.log(newStatement)}
  return newStatement;
}

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

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Challenge: Basic Algorithm Scripting - Truncate a String

Link to the challenge:

2

so you made a loop to handle the case when the num is <= str.length which is great.
Now you just need to add some code to _____ the loop and do something else in the case num > str.length.

My hint is to do with ‘conditionals’.

3

Thank you (:

function truncateString(str, num) {
  let newStatement = "";
  for (let i=0; i<=num; i++) {
    if (i!==num) {newStatement+=str[i]}
    else (newStatement+="...");
    console.log(newStatement)} 
  console.log(str)
  return num>=str.length ? str : newStatement;
}

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

Can’t compare this construction with those beautiful codes in the soutions, but it works anyway

4

my 2 cents, could you have done the conditional earlier in order to “skip” the loop (that’s the blanked out word I had in my previous response).

5

We have blurred this solution (with [spoiler][/spoiler] tags) so that users who have not completed this challenge can read the discussion in this thread without giving away the solution.