Arithmetic Operators - Addition, Subtraction, Multiplication and Division
In JavaScript, we have arithmetic operators that allow us to perform mathematical operations on numbers.
The + operator is used to add numbers together, for example:
The - operator is used to subtract numbers, for example:
The * operator is used to multiply numbers, for example:
The / operator is used to divide numbers, for example:
As in math, the order of operations applies to arithmetic operators in JavaScript. For example, the following expression will be evaluated as 2 + 3 * 4:
Because multiplication has a higher precedence than addition, the expression will be evaluated as 2 + 12, which is 14.
To change the order of operations, we can use parentheses. For example, the following expression will be evaluated as (2 + 3) * 4:
Here, the parentheses ensure that the addition operation is performed before the multiplication.
+(plus) for addition-(minus) for subtraction*(asterisk) for multiplication/(slash) for division
In the code below, we have a variable called x that is assigned the value of 5 and a variable called y that is assigned the value of 2.
Select the correct operators for each line of code to make the output of the console.log statements correct.
console.log(x ? y); // output: 10
console.log(x ? y); // output: 7
console.log(x ? y); // output: 2.5
console.log(x ? y); // output: 3