Sometimes, we want to make multiple left-hand assignments with JavaScript.

In this article, we’ll look at how to make multiple left-hand assignments with JavaScript.

How to make multiple left-hand assignments with JavaScript?

To make multiple left-hand assignments with JavaScript, we first declare all the variables.

And then we can chain the assignments with =.

For instance, we write

let v1, v2, v3;
v1 = v2 = v3 = 200;

to define the v1, v2 and v3 variables with let.

Then we assign 200 to v3.

Then we assign v3 to v2.

And then we assign v2 to v1 in the last line.

Using let v1, v2, v3; lets us make sure that all the variables are block scoped.

Conclusion

To make multiple left-hand assignments with JavaScript, we first declare all the variables.