JavaScript Addition (+) Operator
Last Updated :
19 Sep, 2024
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JavaScript addition (+) operator is one of the most fundamental and widely used arithmetic operators in JavaScript. It is used to perform arithmetic addition on numbers but also concatenate strings.
Syntax
a + bWhere –
- a: The first value (number, string, or another data type).
- b: The second value (number, string, or another data type).
Return Type: It returns the sum/concatenation of numbers/strings.
Example 1: In this example, we will use the addition operator on some primitive data types and check their equivalent sum.
console.log(1 + 2);
console.log(NaN + 1);
console.log(true + 1);
console.log(false + 1);
Output
3 NaN 2 1
Example 2: In this example, we will use the addition operator to perform concatenation
console.log("1" + 2);
console.log("Hello " + "Geek");
Output
12 Hello Geek
Supported Browser
- Chrome 1
- Edge 12
- Firefox 1
- Opera 3
- Safari 1
We have a complete list of Javascript Arithmetic operators, to check those please go through this JavaScript Arithmetic Operators article.
