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JavaScript

Tushar Singh
PLUS
Tushar Singh
Courses Plus Student 8,692 Points
Posted by Tushar Singh
Tushar Singh
Courses Plus Student 8,692 Points

slice() Javascript

Truncate a string(FreeCodeCamp challenge)

Truncate a string (first argument) if it is longer than the given maximum string length (second argument). Return the truncated string with a ... ending.

Note that inserting the three dots to the end will add to the string length.

However, if the given maximum string length num is less than or equal to 3, then the addition of the three dots does not add to the string length in determining the truncated string.

Remember to use Read-Search-Ask if you get stuck. Write your own code.

Here are some helpful links:

String.slice()

-------Tasks to complete------------

truncateString("A-tisket a-tasket A green and yellow basket", 11) should return "A-tisket...".

truncateString("Peter Piper picked a peck of pickled peppers", 14) should return "Peter Piper...".

truncateString("A-tisket a-tasket A green and yellow basket", "A-tisket a-tasket A green and yellow basket".length) should return "A-tisket a-tasket A green and yellow basket".

truncateString("A-tisket a-tasket A green and yellow basket", "A-tisket a-tasket A green and yellow basket".length + 2) should return "A-tisket a-tasket A green and yellow basket".

truncateString("A-", 1) should return "A...".

truncateString("Absolutely Longer", 2) should return "Ab...".

function truncateString(str, num) {
  // Clear out that junk in your trunk
  return str;
}

truncateString("A-tisket a-tasket A green and yellow basket", 11);
Tushar Singh
Tushar Singh
Courses Plus Student 8,692 Points
Tushar Singh
Tushar Singh
Courses Plus Student 8,692 Points 
function truncateString(str, num) {
  // Clear out that junk in your trunk
   if (str.length > num) {
    return str.slice (0, num-3) + '...';
  } else if (num<= 3) {
     return str.slice(0, num) + ('...');
  } else {
    return str;
  }

}

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

Why is it not working????

Problem is with the last 2 challenges:

truncateString("A-", 1) should return "A...".

truncateString("Absolutely Longer", 2) should return "Ab..."

Please help me out here!

1 Answer

jcorum
jcorum
71,830 Points

Try this:

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