The else statement is always used along with the if statement right after the if block. The else statement also creates a code block that is only executed when the specified condition in the if statement is false. JavaScript if statement lets you to create a code block with a condition and if the specified condition is true then code statements written inside the if block will get executed. Now let's see how does the combination of if.else block works in JavaScript.

In this example, we are using if statement and the if block will be executed only if the expression is true. Also, the condition will be satisfied when the expression returns true or any positive numeric value, and in that case, the block of code statements enclosed within the curly braces below the if statement will be executed. The condition passed with the if statement is mostly an expression that can have comparison of two values, any expression returning boolean output true/false, or any other expression. JavaScript if: Syntax and Useīelow we have the basic syntax for using the if statement in the JavaScript code. The condition for the if statement is enclosed within the parenthesis immediately after the if keyword. You can use the if statement when we want to execute code statements only when a particular condition is true. It is one of the most basic and simplest way to control the flow of program based on conditions. In JavaScript, if is a conditional statement that is used to control the program flow just like in C, C++, etc programming languages. For example, see the following statement, if you score more than 40% marks you will pass the exam else you will fail in the exam, here the condition is score more than 40%, if it's true then you pass, if it is false then you fail. The if and else conditional statement works just like they are used in real worl while communicating.

In JavaScript, to control the flow of your program or script based on conditions, we can use the if.else conditional statements.

Javascript if else