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Last change
on this file was a762898, checked in by istevanoska <ilinastevanoska@…>, 5 months ago |
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Added visualizations
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Property mode
set to
100644
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File size:
804 bytes
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| 1 | function partial(func, ...partialArgs) {
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| 2 | return partialImpl(func, placeholderSymbol, ...partialArgs);
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| 3 | }
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| 4 | function partialImpl(func, placeholder, ...partialArgs) {
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| 5 | const partialed = function (...providedArgs) {
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| 6 | let providedArgsIndex = 0;
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| 7 | const substitutedArgs = partialArgs
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| 8 | .slice()
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| 9 | .map(arg => (arg === placeholder ? providedArgs[providedArgsIndex++] : arg));
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| 10 | const remainingArgs = providedArgs.slice(providedArgsIndex);
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| 11 | return func.apply(this, substitutedArgs.concat(remainingArgs));
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| 12 | };
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| 13 | if (func.prototype) {
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| 14 | partialed.prototype = Object.create(func.prototype);
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| 15 | }
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| 16 | return partialed;
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| 17 | }
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| 18 | const placeholderSymbol = Symbol('partial.placeholder');
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| 19 | partial.placeholder = placeholderSymbol;
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| 20 |
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| 21 | export { partial, partialImpl };
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