Day 3 of 30 of Codewars – Javascript

I’ve challenged myself to 30 days of codewars, one a day, time myself, and learn how I could have done it better.

Today I did:  https://www.codewars.com/kata/consecutive-strings/javascript

Time: 20 minutes

What I’ve learnt: I was able to implement manipulating a for loop, by adjusting the value of i, instead of just setting ` i = 0`.  I always feel so in control of my loop when I’m able to implement this. 😉

Since there were certain conditions I can automatically know what it returns (if the second value is greater than the string arrays length, or if the second value is 0 or less), I avoided the iteration and set the return right away. (This is what we learned from yesterday’s challenge!)

Here was my solution:

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function longestConsec(strarr, k) {
    let greatestWordComboLength = 0
    let finalString = ""
    
    if (k > strarr.length || k < 1) return ""
    
    for (let i = k-1; i < strarr.length; i++){
      
      let currentComboLength = 0
      let currentCombinedString = []
      
      for (let w = 0; w < k; w++){
        currentComboLength = currentComboLength + strarr[i - w].length
        currentCombinedString.unshift(strarr[i - w])
      }     

      if (currentComboLength > greatestWordComboLength){
        greatestWordComboLength = currentComboLength
        finalString = currentCombinedString.join("")
      } 
    }
    return finalString
}

What I learned from other people’s code:

Slice is something I see very often in other people’s code. It is something I have to get more comfortable with. It will help to manipulate the array on the spot, so I don’t have to make a new array the way I want it to return.

NOTE TO SELF: Start using slice!!

See you tomorrow!!