27 lines
640 B
TypeScript
27 lines
640 B
TypeScript
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/**
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Import a module lazily.
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@example
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```
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// Pass in `require` or a custom import function
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import importLazy = require('import-lazy');
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const _ = importLazy(require)('lodash');
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// Instead of referring to its exported properties directly…
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_.isNumber(2);
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// …it's cached on consecutive calls
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_.isNumber('unicorn');
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// Works out of the box for functions and regular properties
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const stuff = importLazy(require)('./math-lib');
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console.log(stuff.sum(1, 2)); // => 3
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console.log(stuff.PHI); // => 1.618033
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```
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*/
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declare function importLazy<T = unknown>(
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importFn: (moduleId: string) => T
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): (moduleId: string) => T;
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export = importLazy;
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