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JavaScript: Rearrange characters of a given string in such way that it will become equal to another given string

JavaScript Basic: Exercise-99 with Solution

Write a JavaScript program to check whether it is possible to rearrange the characters of a given string. This is in such a way that it will become equal to another given string.

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title> Rearrange characters of a given string in such way that it will become equal to another given string</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function rearrangement_characters(str1, str2) {

  var first_set = str1.split(''),
      second_set = str2.split(''),
      result = true;

  first_set.sort();
  second_set.sort();

  for (var i = 0; i < Math.max(first_set.length, second_set.length); i++) {
    if (first_set[i] !== second_set[i]) {
      result = false;
    }
  }

  return result;
}

console.log(rearrangement_characters("xyz", "zyx"))
console.log(rearrangement_characters("xyz", "zyp"))

Sample Output:

true
false

Flowchart:

Flowchart: JavaScript - Rearrange characters of a given string in such way that it will become equal to another given string

ES6 Version:

function rearrangement_characters(str1, str2) {
  const first_set = str1.split('');
  const second_set = str2.split('');
  let result = true;

  first_set.sort();
  second_set.sort();

  for (let i = 0; i < Math.max(first_set.length, second_set.length); i++) {
    if (first_set[i] !== second_set[i]) {
      result = false;
    }
  }

  return result;
}

console.log(rearrangement_characters("xyz", "zyx"))
console.log(rearrangement_characters("xyz", "zyp"))

Live Demo:

See the Pen javascript-basic-exercise-99 by w3resource (@w3resource) on CodePen.


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Previous: Write a JavaScript program to switch case of the minimum possible number of letters to make a given string written in the upper case or in the lower case.
Next: Write a JavaScript program to check if there is at least one element which occurs in two given sorted arrays of integers.

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JavaScript: Tips of the Day

Parse an HTTP Cookie header string and return an object of all cookie name-value pairs

Example:

const parseCookie = str =>
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    .split(';')
    .map(v => v.split('='))
    .reduce((acc, v) => {
      acc[decodeURIComponent(v[0].trim())] = decodeURIComponent(v[1].trim());
      return acc;
    }, {});
console.log(parseCookie('foo=bar; equation=E%3Dmc%5E2')); // { foo: 'bar', equation: 'E=mc^2' }

Output:

[object Object] {
  equation: "E=mc^2",
  foo: "bar"
}

 

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