how to say or in an if function javascript code example

Example 1: javascript if or

let A = 1;
let B = 0;
if (A == 1 || B == 1){
  	// some code here
}

Example 2: javascript if

const number = (Math.random() - 2.5) * 5;
if (number < 0) {
	console.log('Number is negative');
}
if (number = 0) {
	console.log('Number is zero');
}
if (number > 0) {
	console.log('Number is positive');
}