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21 lines
560 B
21 lines
560 B
10 years ago
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'use strict';
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var callable = require('../../object/valid-callable')
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, aFrom = require('../../array/from')
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, apply = Function.prototype.apply, call = Function.prototype.call
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, callFn = function (arg, fn) { return call.call(fn, this, arg); };
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module.exports = function (fn/*, …fnn*/) {
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var fns, first;
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if (!fn) callable(fn);
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fns = [this].concat(aFrom(arguments));
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fns.forEach(callable);
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fns = fns.reverse();
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first = fns[0];
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fns = fns.slice(1);
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return function (arg) {
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return fns.reduce(callFn, apply.call(first, this, arguments));
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};
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};
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