Bonfire: Truncate a string

Using .splice() to solve FreeCodeCamp‘s Bonfire: Truncate a string.

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

Try it yourself before viewing my solution! If you use Google Chrome as your browser, you can right click and Inspect Element to use the console to test your code.


The Solution:

function truncate(str, num) {

  if (str.length > num) {
    return str.slice(0, (num-3)) + "...";
  } else {
    return str;
  }
}

truncate("A-tisket a-tasket A green and yellow basket", 11, "");
truncate("A-tisket a-tasket A green and yellow basket", "A-tisket a-tasket A green and yellow basket".length);
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