Question

How to increment letters in TypeScript

Answer 1

function nextChar(char : string) : string {
  	return String.fromCharCode(char.charCodeAt(0) + 1);
}

console.log(nextChar('a')); 
console.log(nextChar('b')); 
console.log(nextChar('c')); 

console.log(nextChar('A')); 
console.log(nextChar('B')); 
console.log(nextChar('C'));  
  
  
  
  
/*
run:
  
"b" 
"c" 
"d" 
"B" 
"C" 
"D" 
  
*/

 

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