Which syntax correctly defines a function in JavaScript?

Question

Options

• Afunction myFunction() { ... }
• Bvar myFunction() { ... }
• CmyFunction[] = { ... }
• Dfunction:myFunction() { ... }

• A
  93% (40)
• C
  2% (1)
• D
  5% (2)

Explanation

Option A uses the function keyword followed by a name and parentheses - this is the standard function declaration syntax in JavaScript and has been valid since the language's inception. Option B is wrong because var declares a variable, not a function, and attaching parentheses to it is a syntax error. Option C uses square brackets, which are for array indexing or destructuring, not function definitions. Option D inverts the colon syntax from object/label notation and is simply not recognized by the JavaScript parser.

Memory tip: Think of it as an English sentence - "function myFunction does something" - the keyword function always leads, the name follows, then () for parameters and {} for the body.

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