How can I create a “Please Wait, Loading…” animation using jQuery?

How can I create a “Please Wait, Loading…” animation using jQuery?

I would like to place a "please wait, loading" spinning circle animation on my site. How should I accomplish this using jQuery? 1:You could do this various different ways. It could be a subtle as a small status on the page saying "Loadin

Why is it bad practice to call System.gc()?

Why is it bad practice to call System.gc()?

After answering a question about how to force-free objects in Java (the guy was clearing a 1.5GB HashMap) with System.gc(), I was told it's bad practice to call System.gc() manually, but the comments were not entirely convincing. In additio

Segmentation fault on large array sizes

Segmentation fault on large array sizes

The following code gives me a segmentation fault when run on a 2Gb machine, but works on a 4GB machine.int main(){ int c[1000000]; cout << "done\n"; return 0;}The size of the array is just 4Mb. Is there a limit on the size of an array

What is the best way to implement “remember me” for a website? [closed]

What is the best way to implement “remember me” for a website? [closed]

I want my website to have a checkbox that users can click so that they will not have to log in each time they visit my website. I know I will need to store a cookie on their computer to implement this, but what should be contained in that c

Are global variables in PHP considered bad practice? If so, why?

Are global variables in PHP considered bad practice? If so, why?

function foo () { global $var; // rest of code}In my small PHP projects I usually go the procedural way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do g

How to count the occurrences of a list item?

How to count the occurrences of a list item?

Given an item, how can I count its occurrences in a list in Python? 1:If you only want one item's count, use the count method:>>> [1, 2, 3, 4, 1, 4, 1].count(1)3Don't use this if you want to count multiple items. Calling count in a loop

Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…

Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…

I am trying to convert a timestamp of the format 2009-09-12 20:57:19 and turn it into something like 3 minutes ago with PHP.I found a useful script to do this, but I think it's looking for a different format to be used as the time variable.

What exactly do “u” and “r” string flags do, and what are raw string literals?

What exactly do “u” and “r” string flags do, and what are raw string literals?

While asking this question, I realized I didn't know much about raw strings. For somebody claiming to be a Django trainer, this sucks.I know what an encoding is, and I know what u alone does since I get what is Unicode.But what does r do ex

How do I make a list of data frames?

How do I make a list of data frames?

How do I make a list of data frames and how do I access each of those data frames from the list?For example, how can I put these data frames in a list ?d1 <- data.frame(y1 = c(1, 2, 3), y2 = c(4, 5, 6))d2 <- data.frame(y1 =

What does “Could not find or load main class” mean?

What does “Could not find or load main class” mean?

A common problem that new Java developers experience is that their programs fail to run with the error message: Could not find or load main class ...What does this mean, what causes it, and how should you fix it? 1:The java

Command not found via ssh with single command, found after connecting to terminal [duplicate]

Command not found via ssh with single command, found after connecting to terminal [duplicate]

Possible Duplicate: Why does an SSH remote command get fewer environment variables then when run manually? If I put command ssh [email protected]$IP ant then I receive bash: ant: command not foundbut when I log into ssh [email protected]$IP and put antthe

org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]A child cont

org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]A child cont

I am struggling for the past 6-7 hrs trying to figure out what went wrong with my Apache Tomcat Server. In all of my projects, the jdk version got switched to 1.6 from 1.8. To solve the version conflict, I verified whether compiled version

changing visibility using javascript

changing visibility using javascript

hii have web page which uses ajax to retrieving data from another pages and while doing that i want to show a loading gif in the page so i've create a div with my gif on it.

Can 'iterator' type just subclass 'const_iterator'?

Can 'iterator' type just subclass 'const_iterator'?

After another question about iterators I'm having some doubts about custom containers. In my container, iterator is a subclass of const_iterator, so that I get conversion from non-const to const "for free". But is this allowed or are ther

Mockito UnfinishedStubbingException

Mockito UnfinishedStubbingException

I am new to Mockito, I have tried looking into this Exception but I haven´t found a concrete answer. It happens in my code when I use two mocks together, meaning that I give through the constructor of a mock, another mock. Like so:...Operat

iOS6: MFMailComposeViewController slow to load and flashes black screen; MailCompositionS begins hog

iOS6: MFMailComposeViewController slow to load and flashes black screen; MailCompositionS begins hog

On iOS 6, after sending a few email messages (by using MFMailComposeViewController), the email screens become very slow to open- at first opening with none of the fields populated (no Subject, no body, etc.) for a few seconds, and eventuall

How to use Querystring with $location.path() in AngularJS

How to use Querystring with $location.path() in AngularJS

I want to redirect user to another page after successful login using query string. If I copy & paste to browser's address bar http://example.com/#/login?ref=/path/to/redirect it works fine. But if I use$location.path("/login?ref=/path/to/re

Backbone model.save() is sending PUT instead of POST

Backbone model.save() is sending PUT instead of POST

I call save using this:console.log(this.model.isNew());console.log(this.model);this.model.save({}, { success: function (model, response, options) { console.log(response); }, error: function (model, xhr, options) { con

slf4j logging with jdk – how to enable debug?

slf4j logging with jdk – how to enable debug?

By default slf4j, when using with jdk (slf4j-jdk14-1.6.1.jar), does not log debug messages.How do I enable them?I can’t find info neither in the official docs, the web or here on how to enable it.I found some info on (failed though) creatin

What are the good Scala IDEs at the start of 2010?

What are the good Scala IDEs at the start of 2010?

I know this is an exact duplicate, but a year has gone by and Scala seems to be a fast moving thing, so I figure it might be acceptable to ask again:What is the best IDE for Scala development right now? 1:I know the Eclipse plugin is a w

How can I use strip_tags in regular Ruby code (non-rails)?

How can I use strip_tags in regular Ruby code (non-rails)?

I need to turn HTML into plain text. There's a nice function that does that in ActionView's SanitizeHelper, but I have trouble understanding how I can reference it and use it in a simple test.rb file.http://api.rubyonrails.org/classes/Actio

Pointer syntax in C: why does * only apply to the first variable?

Pointer syntax in C: why does * only apply to the first variable?

The following declaration in C:int* a, b;will declare a as type int* and b as type int. I'm well aware of this trap, but what I want to know is why it works this way. Why doesn't it also declare b as int*, as most people would intuitively e

Razor - HTML.RAW does not output text

Razor - HTML.RAW does not output text

I have tried all solution proposed to other, similar questions but none of them seems to work.In essence I am trying to display a table filled with data from collection of models. That in itself is not a problem, however I would like to for

How to properly compare decimal values in C#?

How to properly compare decimal values in C#?

I come from a background in C++, and I know that you cannot accurately compare floats for equality. For C#, I simply assumed the same policy applies to decimal values, or any floating point value in general.Basically, I have two decimal val

How can I programmatically set dataSource of UITableView?

How can I programmatically set dataSource of UITableView?

I am having a strange problem. I am trying to assign a dataSource to a table programatically.I have created a UITableView and an IBOutlet for it in my ViewController using the Interface Builder. I have created a class that implements UITabl