ae42b4e740
Specifications for callback functions passed in to an API If your code lets other people supply callback functions, it's important to specify the function signature you expect, and check that functions support that. Adding extra parameters later would break other peoples code unless you're careful. backcall provides a way of specifying the callback signature using a prototype function.
9 lines
391 B
Text
9 lines
391 B
Text
Specifications for callback functions passed in to an API
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If your code lets other people supply callback functions, it's important to
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specify the function signature you expect, and check that functions support
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that. Adding extra parameters later would break other peoples code unless
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you're careful.
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backcall provides a way of specifying the callback signature using a prototype
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function.
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