# Best answer: How can I swap two numbers without third variable in Javascript?

Contents

## How can I swap two values without using third variable in JavaScript?

Program to swap two numbers without using the third variable

1. STEP 1: START.
2. STEP 2: ENTER x, y.
3. STEP 3: PRINT x, y.
4. STEP 4: x = x + y.
5. STEP 5: y= x – y.
6. STEP 6: x =x – y.
7. STEP 7: PRINT x, y.
8. STEP 8: END.

## Can we exchange 2 numbers without using a 3rd variable?

We can swap two numbers without using third variable. There are two common ways to swap two numbers without using third variable: By + and – By * and /

## How do you swap numbers in JavaScript?

4 Ways to Swap Variables in JavaScript

1. Destructuring assignment. Destructuring assignment (a feature of ES2015) lets you extract items of an array into variables. …
2. Temporary variable. Swapping variables using a temporary variable is classic. …
3. Addition and difference. …
4. Bitwise XOR operator. …
5. Conclusion.

## How do you write a swap function in JavaScript?

Here, a new es6 feature, called destructuring assignment [a, b] = [b, a] , is used to swap the value of two variables. If [a, b] = [1, 2, 3] , the value of a will be 1 and value of b will be 2. First a temporary array [b, a] is created. Here the value of [b, a] will be [2, 4] .

## How can I swap two numbers without using arithmetic operators?

How to swap two numbers without using a third variable

1. Using arithmetic operators. Swapping two variables without using a third variable. …
2. Using Bitwise XOR. The result of the bitwise XOR operator is 1 if the corresponding bits of two operands are opposite.

## How can I swap two numbers using Bitwise Operators?

Java Program to Swap Two Numbers Using Bitwise Operator

1. Find the binary equivalent of given variables, say X and Y.
2. Find X^Y and store it in x, i.e. X = X ^ Y.
3. Again, find X^Y and store it in Y, i.e. Y = X ^ Y.
4. Find X^Y and store it in X, i.e. X = X ^ Y.
5. The numbers are swapped.

## How can we swap two numbers without third variable using bitwise operators?

Bitwise operators can also be used to swap two numbers without using a third variable. XOR bitwise operator returns zero if both operands are the same i.e. either 0 or 1 and return 1 if both operands are different e.g. one operand is zero and the other is one.

## How can you swap two strings without using a third variable?

How do you swap two string variables without using third or temp variable in java?

1. public class SwapWithoutTemp {
2. public static void main(String args[]) {
3. String a = “Love”;
4. String b = “You”;
5. System.out.println(“Before swap: ” + a + ” ” + b);
6. a = a + b;
7. b = a.substring(0, a.length() – b.length());
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## How do you swap two numbers in Java?

Swap Two Numbers Using Bitwise XOR (^) Operator

1. public class SwapNumberExample.
2. {
3. public static void main (String args[])
4. {
5. int x = 12, y = 18;
6. System.out.println(“Before swapping values of x and y are: “+ x + “, ” + y);
7. //function calling.
8. swapNumbers(x, y);

## How do you switch between two variables?

The bitwise XOR operator can be used to swap two variables. The XOR of two numbers x and y returns a number that has all the bits as 1 wherever bits of x and y differ. For example, XOR of 10 (In Binary 1010) and 5 (In Binary 0101) is 1111 and XOR of 7 (0111) and 5 (0101) is (0010).

## How do you change values in two variables?

If the two variables are numbers, their values can be swapped using arithmetic operators such as addition and subtraction ( + , – ) or multiplication and division ( * , / ). This swapping method is based on calculating the sum of the two numbers and then swapping them using the sum and the difference from the sum.

## Is there a swap function in Java?

The swap() method of java. util. Collections class is used to swap the elements at the specified positions in the specified list. If the specified positions are equal, invoking this method leaves the list unchanged.

## What is Destructuring in JavaScript?

Destructuring is a JavaScript expression that allows us to extract data from arrays, objects, and maps and set them into new, distinct variables. Destructuring allows us to extract multiple properties, or items, from an array​ at a time.

## How do you swap in HTML?

Swap two nodes

1. const swap = function (nodeA, nodeB) {
2. const parentA = nodeA. parentNode;
3. const siblingA = nodeA. nextSibling === nodeB ? nodeA : nodeA. nextSibling;
4. nodeB. parentNode. insertBefore(nodeA, nodeB);
5. parentA. insertBefore(nodeB, siblingA);
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