If none of the if or else if conditions pass, then JavaScript moves forward and doesn’t run any of the conditional blocks of code. JavaScript skips any remaining conditionals after it runs the first one that passes.Īn else if statement doesn’t need a following else statement to work. You can use multiple if else conditionals, but note that only the first else if block runs. Imma tag along with the previous line', so with this dumb rule, every line has to guard against an aggressive next line.You can also extend an if statement with an else if statement, which adds another conditional with its own block. The reason you stick them at the end is b/c sometimes the next line says 'oh hey.

But that isn't true, JS doesn't need a semicolon to terminate the line, only to terminate it early. It's especially misguided b/c it masks the actual problem lines, and it gives a false implication that omitting the semicolon would mean it continues on the next line. Literally after every line that they can, rather than before the ones that cause the problems. If the condition is true, the if.else statement executes the. Now, in people's defense, JavaScript's syntax is terrible, it's absurd that this works (when it would be so much more useful to have toplevel objects), and given that it works, it's absurd that you can't drop the braces around function bodies.Īnd the other super obnoxious mostly un-understood rule: littering semicolons all over the code. In this syntax, the condition is a value or an expression that evaluates to true or false. log ( wow ( 'hat-log' )) // => gimme an animal B In our example, we first check for the highest score, which will be greater than or equal to 90. log ( wow ( 'dog' )) // => LOVELY console. Literally, we're using some implicit JS behavior about console.

These conditional statements are an essential part of programming as they have logic to execute two or more different set of statements. Also, explore an example statement and its code block. Just like any other programming language JavaScript also have conditional statements like ifelse.

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Javascript if statement