Question

How to reverse a word in a string with TypeScript

Answer 1

function reverseWord(str: string, word: string): string {
  const pos = str.indexOf(word);

  if (pos !== -1) {
    const reversed = word.split('').reverse().join('');
    return str.slice(0, pos) + reversed + str.slice(pos + word.length);
  }
  
  return str;
}

const text: string = "C++ C Java Python PHP C# TypeScript";
const target: string = "Java";

const result = reverseWord(text, target);
console.log(result);



/*
run:

"C++ C avaJ Python PHP C# TypeScript" 

*/

 

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