CODEWITHSUNDEEP
javascriptfor-loopstackfilteringarrow-functions
mph85
mph85

Reputation: 1356

Javascript - Rewriting for-loop using arrow functions?

How would I rewrite this using an arrow function?

Would forEach be the only way?

And what would be an example of an arrow function that doesn't use the forEach method.

CODE

let word = 'Bloc';

const reverseString = (str) => {

   let stack = [];

   for (let i of str) {

     stack.push(str[i]);

   }

   let reversed = '';

   for (let i of word) {

     reversed += stack.pop();

   }

  return reversed;

 }

console.log(reverseString('Bloc'));

Upvotes: 0

Views: 334

Answers (2)

Sunny Goel
Sunny Goel

Reputation: 2142

In this case for reverse String you can also follow the following code :-

let word = 'Bloc';

const reverseString = (str) => {
  let reversed = '';

  // use split function of string to split and get array of letter and then call the reverse method of array and then join it .
  reversed = str.split('').reverse().join('');

  return reversed;

}

console.log(reverseString('Bloc'));

Upvotes: 0

dwjohnston
dwjohnston

Reputation: 11880

You would use the Array.reduce method. (In this case, reduceRight). 

const str = 'helloworld'; 

const newStr = str.split('').reduceRight((acc, cur) => {
    return acc + cur; 
}, ''); 

console.log(newStr);

Upvotes: 2

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