warmUp17.js

// There is a special keyboard with all keys in a single row.
// ​
// Given a string keyboard of length 26 indicating the layout of the keyboard (indexed from 0 to 25),
// initially your finger is at index 0. To type a character, you have to move your finger to the index
// of the desired character.
// The time taken to move your finger from index i to index j is |i - j|.
// ​
// You want to type a string word. Write a function to calculate how much time it takes
// to type it with one finger.
// ​
 
// ​
// Example 1:
// ​
// Input: keyboard = "abcdefghijklmnopqrstuvwxyz", word = "cba"
// Output: 4
// Explanation: The index moves from 0 to 2 to write 'c' then to 1 to write 'b' then to 0 again to write 'a'.
// Total time = 2 + 1 + 1 = 4. 
// Example 2:
// ​
// Input: keyboard = "pqrstuvwxyzabcdefghijklmno", word = "leetcode"
// Output: 73
 
// ​
// Constraints:
// ​
// keyboard.length == 26
// keyboard contains each English lowercase letter exactly once in some order.
// 1 <= word.length <= 10^4
// word[i] is an English lowercase letter.

// ​
// ​
var calculateTime = function(keyboard, word) {
	var index = keyboard.split('');
	var code = word.split('');
	var arr1 = [];
	var acc = 0


	for (var i = 0; i < code.length; i++) {
	 arr1.push(index.indexOf(code[i]))
	}

	for (var i = 0; i < arr1.length; i++) {
		if (i === 0){

			acc = arr1[i]

		} else {
	 	acc = acc + Math.abs(arr1[i]- arr1[i-1])
	 }
	}

	return acc
    
};