Javascript Logical

logical.theory

a || b
in short, this is democracy, if one of them is a Yes man, we all yes man.

Read more
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Logical_OR

a || b || c
How does this work to?

Thanks ChatGPT-san,
In JavaScript, the multiple pipe operator (||) is known as the logical OR operator.
It can be used to evaluate multiple expressions in a left-to-right order and returns the value of the first truthy expression encountered,
or the value of the last expression if none of the expressions are truthy.


const a = -2;
const b = 0;
const c = '';

d = a || b || c;
// so it take whatever as long as it's not 0,
// if there is number above 0, it will take above zero instead of < 0

console.log(a > 0 || b > 0);
// Expected output: true

console.log(d);
// so what is d?