![]() Lastly, we add a code block with the execution code.Ī code block is written by using left and right curly braces. , followed by the condition to evaluate between open and close parentheses. To write an if statement, we use the keyword if If the condition does prove true, it will execute the code defined inside its code block. ![]() We control the flow of our program with the following statements, in combination with relational (comparison) and logical operators.Īn if statement will evaluate if a condition is true. This is an oversimplified example and the actual code won’t look like this, but it demonstrates how we can control the flow of the application through the use of conditional logic. If the password is the same as the db_password If username is the same as the db_username and Otherwise, they will be given the option to try try again or reset their password, if they have forgotten it.īased on this, we can imagine that the logic of our code would like something like this: If a user provides the correct credentials, they’re allowed into the member area. A user needs to provide login credentials before gaining access to the member part of the application. Based on the results, Javascript will execute sections of code.Īs an example, let’s consider an application with a dedicated area for its members. Javascript allows us to control the flow of our program through expressions that evaluate certain conditions. How to nest if, else if and else statements. ![]()
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