𝗦𝘄𝗮𝗽 𝗧𝘄𝗼 𝗡𝘂𝗺𝗯𝗲𝗿𝘀 𝗪𝗶𝘁𝗵𝗼𝘂𝘁 𝗔 𝗧𝗵𝗶𝗿𝗱 𝗩𝗮𝗿𝗶𝗮𝗯𝗹𝗲

𝗦𝘄𝗮𝗽 𝗧𝘄𝗼 𝗡𝘂𝗺𝗯𝗲𝗿𝘀 𝗪𝗶𝘁𝗵𝗼𝘂𝘁 𝗔 𝗧𝗵𝗶𝗿𝗱 𝗩𝗮𝗿𝗶𝗮𝗯𝗹𝗲

You want to swap two variables. Most people use a third variable. You do not need one.

Here are four ways to do it.

Method 1: Temporary Variable

• let temp = a
• a = b
• b = temp

Method 2: Addition and Subtraction

• a = a + b
• b = a - b
• a = a - b

Method 3: Destructuring

• [a, b] = [b, a]

Method 4: Bitwise XOR

• a = a ^ b
• b = a ^ b
• a = a ^ b

Pick the one you need for your project.

Source: https://dev.to/raja_b_0c9d242e2c26cf063b/swap-two-numbers-without-using-a-third-variable-1hje