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JavaScript JavaScript and the DOM (Retiring) Responding to User Interaction Delaying Execution with setTimeout()

Shouldn't greetings and the delay number have gone inside (something)?

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1 Answer

Steven Parker
Steven Parker
231,269 Points

What you see in the syntax portion of the documentation are not code examples. Square brackets in that area are used to indicate that what the terms inside describe is optional.

In this case, they are telling you that the first argument to "setTimeout" will be a function, and there may be other arguments. If so, the next will be a delay, then maybe a value, and so on.