Weight of a character (alphabet):
The weight of an English alphabet is nothing just its 1-based index.
For example, the weight of 'c' is 3, 'k' is 11 and so on.
We are required to write a JavaScript function that takes in a lowercase string and calculates and returns the weight of that string.
Example
The code for this will be −
const str = 'this is a string'; const calculateWeight = (str = '') => { str = str.toLowerCase(); const legend = 'abcdefghijklmnopqrstuvwxyz'; let weight = 0; const { length: l } = str; for(let i = 0; i < l; i++){ const el = str[i]; const curr = legend.indexOf(el); weight += (curr + 1); }; return weight; }; console.log(calculateWeight(str));
Output
And the output in the console will be −
172