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29 lines
909 B
TypeScript
29 lines
909 B
TypeScript
// Loaded from https://deno.land/x/ramda@v0.27.2/source/internal/_checkForMethod.js
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import _isArray from './_isArray.js';
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/**
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* This checks whether a function has a [methodname] function. If it isn't an
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* array it will execute that function otherwise it will default to the ramda
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* implementation.
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*
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* @private
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* @param {Function} fn ramda implementation
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* @param {String} methodname property to check for a custom implementation
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* @return {Object} Whatever the return value of the method is.
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*/
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export default function _checkForMethod(methodname, fn) {
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return function() {
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var length = arguments.length;
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if (length === 0) {
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return fn();
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}
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var obj = arguments[length - 1];
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return (_isArray(obj) || typeof obj[methodname] !== 'function') ?
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fn.apply(this, arguments) :
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obj[methodname].apply(obj, Array.prototype.slice.call(arguments, 0, length - 1));
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};
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}
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