68 lines
1.8 KiB
JavaScript
68 lines
1.8 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = function (fn /*, ...args*/) {
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var args = (0, _slice2.default)(arguments, 1);
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return function () /*callArgs*/{
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var callArgs = (0, _slice2.default)(arguments);
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return fn.apply(null, args.concat(callArgs));
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};
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};
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var _slice = require('./internal/slice');
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var _slice2 = _interopRequireDefault(_slice);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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;
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/**
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* Creates a continuation function with some arguments already applied.
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*
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* Useful as a shorthand when combined with other control flow functions. Any
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* arguments passed to the returned function are added to the arguments
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* originally passed to apply.
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*
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* @name apply
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* @static
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* @memberOf module:Utils
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* @method
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* @category Util
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* @param {Function} fn - The function you want to eventually apply all
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* arguments to. Invokes with (arguments...).
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* @param {...*} arguments... - Any number of arguments to automatically apply
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* when the continuation is called.
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* @returns {Function} the partially-applied function
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* @example
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*
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* // using apply
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* async.parallel([
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* async.apply(fs.writeFile, 'testfile1', 'test1'),
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* async.apply(fs.writeFile, 'testfile2', 'test2')
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* ]);
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*
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*
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* // the same process without using apply
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* async.parallel([
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* function(callback) {
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* fs.writeFile('testfile1', 'test1', callback);
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* },
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* function(callback) {
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* fs.writeFile('testfile2', 'test2', callback);
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* }
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* ]);
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*
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* // It's possible to pass any number of additional arguments when calling the
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* // continuation:
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*
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* node> var fn = async.apply(sys.puts, 'one');
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* node> fn('two', 'three');
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* one
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* two
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* three
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*/
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module.exports = exports['default']; |