Truncate a String , someone explain me what is happening here

JavaScript
1 

function truncateString(str, num) {
let string = ""
if(num){
for (let i=0; i<num; i++){
  string += str[i]
}
return string+"...";
}else {
  return string  `// this is not working`
}
}

console.log(truncateString("A-tisket a-tasket A green and yellow basket", 10));

A-tisket a… //output

Challenge: Truncate a String

Link to the challenge:

2

The function will always be called with num, so it will never enter the else-code.

Also try calling it with a number bigger than the length of the string and you will notice the first part also isn’t working.

3

so what to do to solve??

4

if num what?
when is it that you need to truncate the string?

5

if the string length is greater than num.

6

then you need to use that as condition for the if statement

7

ok but the dots are not going

8

what’s your code now?

9

it is working now

if(num<str.length){
    return str.slice(0,num)+"..."
  }else{
    return str
  }
2 Likes
10

good job!

Happy coding!

11

This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.