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Gilbert Joseph Smith III

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Details

• Difficulty: 1/5

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 the three dots at the end add to the string length.

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

Useful Links

• String.slice()

Problem Script:

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

truncate('A-tisket a-tasket A green and yellow basket', 11);

Explanation:

We need to reduce the length of the string or truncate it if it is longer than the given maximum lengths specified and add ... to the end. If it is not that long then we keep it as is.

Hint: 1

Strings are immutable in JavaScript so we will need a new variable to store the truncated string.

Hint: 2

You will need to use slice and specify where to start and where to stop.

Hint: 3

Do not forget that when we truncate the word, we also must count the length added by ...

My code:

function truncate(str, num) {
    var truncd = '';
    if (str.length > num) {
        truncd = str.slice(0,num-3) + '...';
        return truncd;
    }
    return str;
}

My Code Explanation:

• Create a variable truncd to store the truncated string.
• Check to see if the string needs to be truncated.
• If so, then slice the string and make sure you include the three dots.
• Return the truncated word or the original string if it didn't need to be truncated.

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