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55 lines
1.2 KiB
55 lines
1.2 KiB
declare const mimicFn: {
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/**
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Make a function mimic another one. It will copy over the properties `name`, `length`, `displayName`, and any custom properties you may have set.
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@param to - Mimicking function.
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@param from - Function to mimic.
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@returns The modified `to` function.
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@example
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```
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import mimicFn = require('mimic-fn');
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function foo() {}
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foo.unicorn = '🦄';
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function wrapper() {
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return foo();
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}
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console.log(wrapper.name);
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//=> 'wrapper'
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mimicFn(wrapper, foo);
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console.log(wrapper.name);
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//=> 'foo'
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console.log(wrapper.unicorn);
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//=> '🦄'
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```
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*/
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<
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ArgumentsType extends unknown[],
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ReturnType,
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FunctionType extends (...arguments: ArgumentsType) => ReturnType
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>(
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to: (...arguments: ArgumentsType) => ReturnType,
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from: FunctionType
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): FunctionType;
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// TODO: Remove this for the next major release, refactor the whole definition to:
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// declare function mimicFn<
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// ArgumentsType extends unknown[],
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// ReturnType,
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// FunctionType extends (...arguments: ArgumentsType) => ReturnType
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// >(
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// to: (...arguments: ArgumentsType) => ReturnType,
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// from: FunctionType
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// ): FunctionType;
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// export = mimicFn;
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default: typeof mimicFn;
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};
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export = mimicFn;
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