Truncate a string

script.js

function truncateString(str, num) {
  // Clear out that junk in your trunk
  var trunStr = "";
  
  if (str.length>num){   //first checking wheter given string needs to truncated 
  
  if (num>3) { // check whether given num is bigger than 3 or not
    trunStr = str.slice(0, num-3); //we need to take additional 3 from the ...
    console.log(trunStr);
    return trunStr + "...";

  } else { // not bigger than 3, so we do not include three dots within our calculation
    trunStr = str.slice(0, num);
    console.log(trunStr);
    return trunStr + "...";

  }
    
  } else return str; //string does not need to be truncated so, we return it as it is

  //  return str;
}

truncateString("Absolutely Longer", 2)

truncate-a-string.markdown

Truncate a string

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