The loop is executed from top to bottom so you will want to be careful of what statement comes first. We can now write a program that 'branches' at a particular point, running one of two possible sections of code. Order is important in if, else if statements. A JavaScript ifelse statement evaluates whether a condition is true or false.

The else also has its own set of opening and closing curly braces to encapsulate lines of codeĬonsidering our flow chart from before, until now we haven't had a way to make the program do something different if the condition was false. In JavaScript we have the following conditional statements: if statement - use this statement if you want to execute some code only if a specified condition is.

The else must come immediately after the closing curly brace of an if statement.

Some important notes about the else clause: Inside the curly braces for the else clause you put lines of code that you want to run if the Boolean condition from the if statement is false. When a true else-if condition is found, the statements inside.

You saw in the video how to add an else clause to an if-statement - hit the little + symbol on the tail of the if statement. If the condition is false, each else-if statement is evaluated in the order in which they appear. With an if-else statement you are giving an either-or command:Įither the lines of code inside the if will execute or the lines inside the else will execute. If-Else Statements How If-Else Statements work

If else statement javascript