500. Keyboard Row (javascript)

 

 

Hi, today I worked on a problem that seems to be related to Hash Maps.

To summarize:

there are three layers, so I tried using a Map like ["a", "1"], ["b", "2"].

However, it didn’t work properly.
To solve the problem in my own way, I used a String and compared values directly.

Yeah... the code ended up being really long, and the efficiency isn’t great.
But I think solving the problem is more important for now.
Anyway, this is my code.

 

var findWords = function(words) {

let y = words.map((i) => i.toLowerCase())

let t = ""

let result = []

let a = "qwertyuiopasdfghjklzxcvbnm"

for(let i = 0; i< y.length; i++){

     for(let j = 0; j < y[i].length; j++){

         let x = a.indexOf(y[i][j])

         if(x < 10 ){

        t += "1"

    }else if(x < 19 ){

     t+="2"

     }else {

      t+= "3"

   }

}

   result.push(t)

    t = ""

  }

let fi = []

     for(let i = 0; i< result.length; i++){

          let s = true

        for(let j = 0; j < result[i].length - 1; j++){

              if(result[i][j] !== result[i][j+1]){

                  s = false

                  break

                }

                }

              if(s){

                 fi.push(words[i])

              }

        }

          return fi

    };

 

It works properly, but I know there’s a more efficient way to solve this.
Now, I’ll go study better solutions to improve my approach.