Is setting multiple variables in 1 line valid in javascript? (var x=y='value';)

Question

This is valid in php:

$x=$y=\'value\';

This will in esscence set both $x and $y to \'value\'.

Is this valid in javascript?

Answer 1

I'm pretty sure that the most readable form is the one that has not been brought up yet:

let x = 0, y = 0