How to use the bind function from underscore

Find comprehensive JavaScript underscore.bind code examples handpicked from public code repositorys.

underscore.bind returns a new function with the given this context and partially applied arguments to the original function.

run-log.js

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var runLogInstance = new RunLog;
_.each(
  ['log', 'logTemporary', 'logRestart', 'logClientRestart', 'logAppOutput',
   'setRawLogs', 'finish', 'clearLog', 'getLog'],
  function (method) {
    exports[method] = _.bind(runLogInstance[method], runLogInstance);
  });

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+ 3 other calls in file

leaflet-measure.js

GitHub: susanameono/Clase-9-correcta

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// or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
_.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
  var initial = arguments.length > 2;
  if (obj == null) obj = [];
  if (nativeReduce && obj.reduce === nativeReduce) {
    if (context) iterator = _.bind(iterator, context);
    return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
  }
  each(obj, function(value, index, list) {
    if (!initial) {

+ 3 other calls in file

How does underscore.bind work?

underscore.bind is a method in the Underscore.js library that returns a new function with the same body and scope as the original function, but with its this value set to the provided this value, and optionally partially applying arguments to the function.

classifier.js

GitHub: ArVinD-005/RepoA

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  if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
    if (context) iterator = _.bind(iterator, context);
    return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
  }
  var reversed = _.toArray(obj).reverse();
  if (context && !initial) iterator = _.bind(iterator, context);
  return initial ? _.reduce(reversed, iterator, memo, context) : _.reduce(reversed, iterator);
};

// Return the first value which passes a truth test. Aliased as `detect`.

+ 27 other calls in file

sfmMapIdentifyWidget.js

GitHub: Mickey-Meng/zhuji_web

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    me.base(options);
    me.data.ol2Helper = null;
    me.data.queryUrl = me.getSfmModuleMgr().getServiceUrl('stQuery');
    me.data.layerManager = options.layerManager;
    me.data.url = me.data.queryUrl + 'identify';
    me.data._bindedOnMapClick = _.bind(me._onMapClick, me);
    me.data.isBusy = false;
    me.data.minr = options && options.minr != undefined ? options.minr : 0.3;
    me.data.rs = options && options.rs != undefined ? options.rs : 2;
},

+ 2 other calls in file

Ai Example

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const myObj = {
  greeting: "Hello, ",
  greet(name) {
    console.log(this.greeting + name);
  },
};

const person = {
  name: "Alice",
};

const boundFn = _.bind(myObj.greet, myObj, person.name);
boundFn(); // logs 'Hello, Alice'

In this example, _.bind is used to create a new function boundFn that is bound to the myObj.greet method. The first argument to _.bind is the function to be bound, the second argument is the value of this inside the function, and any subsequent arguments are arguments that will be passed to the bound function when it is called. In this case, the person.name argument is passed to the bound function, so the final output will be 'Hello, Alice'.

sfmMapIdentifyWidget0.js

GitHub: Mickey-Meng/zhuji_web

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    me.base(options);
    me.map = me.doAction('getMap');
    me.ol2Helper = new OL2Helper(me.map);
    me.data.queryUrl = me.getSfmModuleMgr().getServiceUrl('stQuery');
    me.url = me.data.queryUrl + 'identify';
    me._bindedOnMapClick = _.bind(me._onMapClick, me);
    me.isBusy = false;
    me.map.events.register('click', me.map, me._bindedOnMapClick);
},
destroy: function() {

+ 2 other calls in file

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