Truncate a String | Free Code Camp | Bonfire

readMe.txt

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.

Here are some helpful links:

String.slice()

truncate.js

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

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

Solution 1:Basic(recommend)

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

Solution 2:Advanced

function truncateString(str, num) {
  if (str.length <= num) {
    return str;
  } else {
    return str.slice(0, num > 3 ? num - 3 : num) + '...';
  }
}

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

truncateString("A-", 1);

My solution using Conditional (ternary) Operator:

function truncateString(str, num) {
    return str.length > num ? str.slice(0, num > 3 ? num - 3 : num) + '...' : str;
}

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

After a week of dirtying my code editor with this challenge, i later got it right . checkout below
function shortenStr (str, num){
if(str.length > num){ //checks if the length of the given string is greater than the specified number.
return str.slice( 0, num ) + "..." //if the condition above is true, the slice method will start from index [0] of str and stop in the specified number adding "..." as suffix.
} else {return str} // if the condition above is false, then it returns the initial string in the argument.
}
shortenStr("I will always code to improve my skills", 9)

//After a week of dirtying my code editor with this challenge, i later got it right . checkout below function shortenStr (str, num){ if(str.length > num){ //checks if the length of the given string is greater than the specified number. return str.slice( 0, num ) + "..." //if the condition above is true, the slice method will start from index [0] of str and stop in the specified number adding "..." as suffix. } else {return str} // if the condition above is false, then it returns the initial string in the argument. } shortenStr("I will always code to improve my skills", 9)