trunc javascript code example

Example 1: truncate javascript

function truncateString(str, num) {
  if (num > str.length){
    return str;
  } else{
    str = str.substring(0,num);
    return str+"...";
  }

}

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

Example 2: javascript trunc

Math.trunc(13.37);    // 13
Math.trunc(42.84);    // 42
Math.trunc(0.123);    //  0