what does the the sign in javascript for and/or code example

Example 1: or operator in javascript

//The OR operator in Javascript is 2 verticals lines: ||

var a = true;
var b = false;

if(a || b) {
	//one of them is true, code inside this block will be executed
}

Example 2: less than equal to in javascript

| <= | less than or equal to |	x <= 8 | true |