How does “this” keyword work within a function?

How does “this” keyword work within a function?

I just came across an interesting situation in JavaScript. I have a class with a method that defines several objects using object-literal notation. Inside those objects, the this pointer is being used. From the behavior of the program, I

How to “properly” create a custom object in JavaScript?

How to “properly” create a custom object in JavaScript?

I wonder about what the best way is to create an JavaScript object that has properties and methods.I have seen examples where the person used var self = this and then uses self. in all functions to make sure the scope is always correct.Then

JSON Parse File Path

JSON Parse File Path

I'm stuck trying to get the correct path to the local file. I have the following directories:Resources -> data -> file.json js -> folder -> script.js html -> folder -> file1.htmlI'm executing script.js fr

How to get the input element triggering the jQuery autocomplete widget?

How to get the input element triggering the jQuery autocomplete widget?

I have several input fields that are enhanced with jQuery auto-complete functionality. How to get the corresponding input field when a select event is triggered?$('input[type=text]').autocomplete({ source: 'suggestions.php', select: f

How to get an element's ID from event.target

How to get an element's ID from event.target

Consider a piece of code that looks like the following:$('body').on('click', function(e){});I know there is a way to get the element type from e.target, i.e. e.target.nodeName, but how can I get the id of that element from that? If that can

Javascript Create New “Thread”

Javascript Create New “Thread”

This is a "thread" according to javascript, but the code doesn't seem to fit the conventional threaded model.Is it possible to make this code clearer, with regards to the concept of a thread?function test() { alert("Test");}// this creat

iOS Push Notification custom format

iOS Push Notification custom format

I'm new to all iOS push notification domain. I have tried a basic push notification using the following code and it works perfectly. I'm using "using JdSoft.Apple.Apns.Notifications;" to accomplish this. Here's the code:Notification alertNo

Oracle considers empty strings to be NULL while SQL Server does not - how is this best handled?

Oracle considers empty strings to be NULL while SQL Server does not - how is this best handled?

I have to write a component that re-creates SQL Server tables (structure and data) in an Oracle database. This component also has to take new data entered into the Oracle database and copy it back into SQL Server.Translating the data types

Cleanest way to get the next sibling in jQuery

Cleanest way to get the next sibling in jQuery

http://jsfiddle.net/mplungjan/H9Raz/After quite some tests with next('a') and such, I finally found one that worked.I just wonder why next('a') did not, or closest or similar. Are there cleaner ways to get at the href of the link after the

Is there a way to add an onclick event to an ASP.NET Label server control?

Is there a way to add an onclick event to an ASP.NET Label server control?

I wanted to do something like this:My LabelI know that in Javascript I can do:My LabelSo I'm wondering why I can't do that with a Label object. 1:You can use Attributes to add onclick client side callback.I didn't know you can do this on

How can I check if user has a webcam or not? [closed]

How can I check if user has a webcam or not? [closed]

I need to know if there's a way to know if the user has a webcam on his computer using javascript or maybe php. 1:There is a plugin: http://www.xarg.org/project/jquery-webcam-plugin/if(webcam.getCameraList().length == 0){ alert('You

Sending Emoji in Push Notifications via PHP on iOS

Sending Emoji in Push Notifications via PHP on iOS

I'd like to send some emoji icons with push notifications, but have no idea how I do that.Has anyone successfully implemented this with PHP? I just want to prepend my push message with a smiley face for example.My question is purely about e

Posting JSON with JQuery

Posting JSON with JQuery

Trying to get JQuery to post JSON to a server:$.ajax({ url: "/path/to/url", type: "POST", dataType: "json", contentType: "json", data: {"foo": "bar"}, success: function(){ alert("success :-)"); }, er

How to Access ViewData in javascript

How to Access ViewData in javascript

I am having a problem accessing the ViewData object through javascript. I have set the ViewData object on the controller and on document.ready event of the view i am trying to see the contents of that same ViewData object like so: var

How to get all  elements that are highlighted

How to get all elements that are highlighted

I want to get all of the elements in a user highlighted area. The problem is that I don't know how to traverse to different parts of the DOM, when the elements are on a different part of the tree. My code so far can only get the elements

Devise Flash Method Rails [duplicate]

Devise Flash Method Rails [duplicate]

This question already has an answer here: Rails Devise I18n Flash Messages with Twitter Bootstrap 6 answers I am using Rails 4, Twitter Bootstrap 3.0,

'wait_fences: failed to receive reply: 10004003' on loading UIAlertView (iOS)

'wait_fences: failed to receive reply: 10004003' on loading UIAlertView (iOS)

I'm getting the 'wait_fences: failed to receive reply: 10004003' when I call a UIAlertView. It's called when the app first opens. It doesn't crash the app or seem to effect the functionality of it at all but I want to clean up my app comple

Rails 4 how to catch ajax:success event

Rails 4 how to catch ajax:success event

I'm on Rails 4.0.I'm sending an event like this (note the :remote=>true): true, :class=>"rate-btn yes-btn btn btn-default btn-sm"} %>My controller looks like this: def rate video = Video.find_by( hashed_id: params[:id]) action = pa

Automatically try AJAX request again on Fail

Automatically try AJAX request again on Fail

I have seen that you can specify what to do generally if an ajax request fails, is it possible to have it try again in some sort of a loop so that it tries at least x amount of times before it stops? I have used this code before:$.ajaxSetup

Why are self-executing anonymous functions used in Javascript Module pattern?

Why are self-executing anonymous functions used in Javascript Module pattern?

In the module pattern in JavaScript "Immediately-Invoked Function Expressions" (also known as self-executing anonymous functions) are used as self executing functions that return an object. How can a self-executing function hide private var

Custom JavaScript alerts in iOS using PhoneGap HTML

Custom JavaScript alerts in iOS using PhoneGap HTML

My app has a couple of JS alerts and it seems to always display the page name like.index.html Is there a way to change the index.html to my App's name or custom text.Example:My App // Which replaces .index.htmlalert("I am an alert box!");

How to open new browser window on button click event?

How to open new browser window on button click event?

How to open new browser window on button click event in C# ASP.NET?Please share any example.I am doing following code. Please let me know where I am going wrong.btn_Click(){ if(condition==true) { this.Page.ClientScript.Register

Ruby Mechanize https error

Ruby Mechanize https error

I'm trying to do the following:page = Mechanize.new.get "https://sis-app.sph.harvard.edu:9030/prod/bwckschd.p_disp_dyn_sched"But I only get this exception:OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=SSLv2/v3 read server hel

How can I define an AngularJS factory using TypeScript class that has constructor parameters

How can I define an AngularJS factory using TypeScript class that has constructor parameters

I want to write a TypeScript class that gets a "prefix" parameter in the constructor, this class also needs access to a LogService inject.Using plain JavaScript you should do it like this:angular.module('myModule', []).factory('LogWithPrefi

How best to do a JavaScript array with non-consecutive indexes?

How best to do a JavaScript array with non-consecutive indexes?

I'm writing a Google Chrome extension, in JavaScript, and I want to use an array to store a bunch of objects, but I want the indexes to be specific non-consecutive ID numbers. (This is because I need to be able to efficiently look up the va