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rOACCT/node_modules/lodash/bindKey.js
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bindKey.js
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			var baseRest = require('./_baseRest'),
			createWrap = require('./_createWrap'),
			getHolder = require('./_getHolder'),
			replaceHolders = require('./_replaceHolders');

			/** Used to compose bitmasks for function metadata. */
			var WRAP_BIND_FLAG = 1,
			WRAP_BIND_KEY_FLAG = 2,
			WRAP_PARTIAL_FLAG = 32;

			/**
			* Creates a function that invokes the method at `object[key]` with `partials`
			* prepended to the arguments it receives.
			*
			* This method differs from `_.bind` by allowing bound functions to reference
			* methods that may be redefined or don't yet exist. See
			* [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
			* for more details.
			*
			* The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
			* builds, may be used as a placeholder for partially applied arguments.
			*
			* @static
			* @memberOf _
			* @since 0.10.0
			* @category Function
			* @param {Object} object The object to invoke the method on.
			* @param {string} key The key of the method.
			* @param {...*} [partials] The arguments to be partially applied.
			* @returns {Function} Returns the new bound function.
			* @example
			*
			* var object = {
			* 'user': 'fred',
			* 'greet': function(greeting, punctuation) {
			* return greeting + ' ' + this.user + punctuation;
			* }
			* };
			*
			* var bound = _.bindKey(object, 'greet', 'hi');
			* bound('!');
			* // => 'hi fred!'
			*
			* object.greet = function(greeting, punctuation) {
			* return greeting + 'ya ' + this.user + punctuation;
			* };
			*
			* bound('!');
			* // => 'hiya fred!'
			*
			* // Bound with placeholders.
			* var bound = _.bindKey(object, 'greet', _, '!');
			* bound('hi');
			* // => 'hiya fred!'
			*/
			var bindKey = baseRest(function(object, key, partials) {
			var bitmask = WRAP_BIND_FLAG \| WRAP_BIND_KEY_FLAG;
			if (partials.length) {
			var holders = replaceHolders(partials, getHolder(bindKey));
			bitmask \|= WRAP_PARTIAL_FLAG;
			}
			return createWrap(key, bitmask, object, partials, holders);
			});

			// Assign default placeholders.
			bindKey.placeholder = {};

			module.exports = bindKey;