How to use the bind function from lodash
Find comprehensive JavaScript lodash.bind code examples handpicked from public code repositorys.
lodash.bind creates a new function that, when called, has its this keyword set to the provided value.
6001 6002 6003 6004 6005 6006 6007 6008 6009 6010* * var func = function(greeting) { * return greeting + ' ' + this.name; * }; * * func = _.bind(func, { 'name': 'fred' }, 'hi'); * func(); * // => 'hi fred' */ function bind(func, thisArg) {
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30 31 32 33 34 35 36 37 38 39module.exports.attempt = _.attempt; module.exports.before = _.before; module.exports.best = _.best; module.exports.binPick = _.binPick; module.exports.binary = _.binary; module.exports.bind = _.bind; module.exports.bindAll = _.bindAll; module.exports.bindKey = _.bindKey; module.exports.bitwiseAnd = _.bitwiseAnd; module.exports.bitwiseLeft = _.bitwiseLeft;
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How does lodash.bind work?
lodash.bind is a function in the Lodash library that returns a new function with a bound this value and partially applied arguments based on the original function. When bind is called, the first argument passed in is the value that this should be bound to when the returned function is called. Any additional arguments passed in are used to partially apply the original function, which means that the values are set and cannot be changed. The returned function can be invoked with additional arguments that will be passed to the partially applied function in addition to the bound arguments. The bind method is useful for creating functions that can be called with a specific context or set of arguments, without needing to explicitly specify them each time the function is called.
3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069// Returns function property of object by name, bound to object _.bound = function(obj, fname) { var fn = obj[fname]; if (!_.isFunction(fn)) throw new TypeError("Expected property to be a function"); return _.bind(fn, obj); }; })(this);
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GitHub: mdmarufsarker/lodash
299 300 301 302 303 304 305 306 307 308 309 310 311console.log(ary(1, 2, 3)); // => 1 const before = _.before(2, () => console.log('hello')); before(); const bind = _.bind(console.log, console, 'hello'); bind(); // => 'hello' const bindKey = _.bindKey(console, 'log', 'hello'); bindKey(); // => 'hello'
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Ai Example
1 2 3 4 5 6 7 8 9const module = { x: 42, getX: function () { return this.x; }, }; const boundGetX = _.bind(module.getX, module); console.log(boundGetX()); // Output: 42
In this example, lodash.bind is used to bind the function module.getX to the module object so that this inside getX refers to the module object, and not the global object. The resulting function boundGetX is then called to return the value of x from the module object.
GitHub: Hupeng7/es6demo
29 30 31 32 33 34 35 36 37 38console.log('greeting: ', greeting); console.log('punctuation: ', punctuation); return greeting + ' ' + this.user + punctuation; } var object = { 'user': 'fred' }; var bound = _.bind(greet, object, 'hi'); let res1 = bound('!'); console.log('res1--->', res1); //res1---> hi fred!
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170 171 172 173 174 175 176 177 178 179if (len > 3) { return `Array[${len}]` } return `[${_.map(value, _.bind(this.stringifyActual, this)).join(', ')}]` } if (_.isRegExp(value)) { return value.toString()
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3169 3170 3171 3172 3173 3174 3175 3176 3177 3178if (err) return cb(err); var derivators = []; _.each([false, true], function(isChange) { derivators.push({ derive: _.bind(wallet.createAddress, wallet, isChange), rewind: _.bind(wallet.addressManager.rewindIndex, wallet.addressManager, isChange), }); if (opts.includeCopayerBranches) { _.each(wallet.copayers, function(copayer) {
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lodash.get is the most popular function in lodash (7670 examples)