Calculations

Name	Operator	Examples	Result
Addition	+	1 + 3	4
		'Awe' + 'some'	Awesome
		3.5 + 2.4	5.9
Subtraction	-	5 - 3	2
		2 - 2	0
		3 - 5	-2
Multiplication	*	2 * 2	4
		3 * 5	15
		3 * 0	0
Division	/	10 / 2	5
		0 / 3	0
		5 / 0	Infinity
Remainder Of Division	%	10 % 2	0
		4 % 3	1
		17 % 6	5

Explanation for Remainder Of Division

Let's start with a program that prints rectangle's area by knowing it's width and height.

let width = 2; let height = 3; // Calc Area: let area = width * height; console.log("Area = " + area);

Output:

Area = 6

Explanation

• At line 5 width and height are multiplied (via * operator).
• At line 6 string and number are concatenated via + operator.

Let's demonstrate the rest of the operators:

let a = 5; let b = 2; console.log("A = " + a); console.log("B = " + b); console.log("A + B = " + (a + b)); console.log("A - B = " + (a - b)); console.log("A * B = " + (a * b)); console.log("Remainder of Division:" + (a % b)); console.log("Concating strings: "); let str1 = "Web "; let str2 = "Technologies"; console.log(str1 + str2); let numericStr1 = "1"; let numericStr2 = "2"; console.log("1 + 2 = " + numericStr1 + numericStr2);

Output:

A = 5 B = 2 A + B = 7 A - B = 3 A * B = 10 Remainder of Division:1 Concat strings: Web Technologies 1 + 2 = 12