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27 lines
526 B
Markdown
27 lines
526 B
Markdown
---
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id: 2b93c1c4-b0ed-4b03-846b-557ccc9d6080
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title: JavaScript declaration notation
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---
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There is a shorter way to declare functions:
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``` javascript
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function square(x) {
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return x * x
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}
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console.log(square(5))
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```
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Function declarations are not part of the regular top-to-bottom flow on
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control. They are conceptually moved to the top of their scope and can
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be used by all the code in that scope.
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``` javascript
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console.log("The future says:", future())
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function future() {
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return "Where are my flying cars?"
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}
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```
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