JS: Assignment Operators
By Xah Lee. Date: . Last updated: .
Assignment Operators
var = val-
assign val to var, and return val
〔see let Declaration〕
let zz;
console.log(((zz = 3) + 1) === 4);
Increment / Decrement Assignment
++x-
same as
x=x+1 (return new value)
--x-
same as
x=x-1 (return new value)
x++-
like
x=x+1 but return old value
x---
like
x=x-1 but return old value
Compound Assignment Operators
x += y-
same as
x = x + y
x -= y-
same as
x = x - y
x *= y-
same as
x = x * y
x /= y-
same as
x = x / y
x %= y-
same as
x = x % y
x **= y-
same as
x = x ** y
Logical Assignment Operators