In JavaScript, we can increment the value of a numeric variable in 2 ways.
We can put ++ before or after the variable.
They look similar but they’re different.
In this article, we’ll look at the differences between ++x and x++ in JavaScript.
The difference between ++x and x++ is the ++x increments the variable and returns the new value of x as the value.
For instance, if we write:
let x = 1
console.log(++x)
console.log(x)
Then we see that both console logs log 2.
On the other hand, x++ increments the variable but it doesn’t return the new value of x as the value.
For instance, if we have:
let x = 1
console.log(x++)
console.log(x)
Then we see that the first console log logs 1, and the 2nd console log logs 2.
Conclusion
Even though ++x and x++ looks similar, they’re different.
++x increments the variable and returns the new value of x as the value.
While x++ increments the variable but it doesn’t return the new value of x as the value.
