FAQ: Control Flow - Placeholder


This community-built FAQ covers the “Placeholder” exercise from the lesson “Control Flow”.

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if (mode === ‘public’) {
} else {

Basics of Programming II

Putting It All Together

It will not let me past this step, even though it appears to be correct?


Same for me. Strange.


It’s very confusing. Take away semicolon and it will work. Took me forever to figure that out. I even clicked on give me solution and nothing changed. Very very confusing with no help on something so minor.


Why do we use a semi colon and not a colon after the functions showDetails(); and hideDetails();


In JavaScript we use an end of statement token to tell the interpreter to parse the line and stop. That token is the semi-colon. There are no colons in JS, except as property-value separators in objects.

obj = {
    property: value

Modern JS (ES6 and above) have somewhat relaxed the need for the semi-colon and it will actually insert them automatically where needed if they are omitted. In time you will get the hang of where they are typically needed, and also where they are not needed.

One such relaxed situation is the last statement in a block. It does not technically need a semi-colon since it is followed by a closing brace, which is where the interpreter will naturally stop parsing. When statements follow each other, they will have a token to end each one.


Hi i have the same problem, even taking the semicolons away did not solve it for me i guess im stuck


You don’t need the semicolons but you do need to capitalize the ‘d’ in details. showDetails() and hideDetails() will make it work.


I am in the same position here. Have tried with or without ;
Caps for d in Details :frowning:


@steve85tait if you have the code well written, just press f5 and course will let you move to the next step!
Hope worked for you and/or others here looking to move forward :grin:


Was about to post this exact question till I read this post. I figured it had something to do with punctuation and after going through the replies my problem was fixed. Thanks for this even though I didn’t post my question.


so this loaded and there is nothing written down for this exercise


It was a bit confusing as the solution didn’t have the public post appearing until I put the brackets in though if I added the semicolon it didn’t work.