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Javascript: best Singleton pattern [duplicate]
...avascriptTips#Singleton_pattern
function MySingletonClass () {
if (arguments.callee._singletonInstance) {
return arguments.callee._singletonInstance;
}
arguments.callee._singletonInstance = this;
this.Foo = function () {
// ...
};
}
var a = new MySingletonClass();
var b = MySi...
Stop all active ajax requests in jQuery
...
Every time you create an ajax request you could use a variable to store it:
var request = $.ajax({
type: 'POST',
url: 'someurl',
success: function(result){}
});
Then you can abort the request:
request.abort();
You c...
How to get the name of the current method from code [duplicate]
...sing System.Diagnostics;
...
var st = new StackTrace();
var sf = st.GetFrame(0);
var currentMethodName = sf.GetMethod();
Or, if you'd like to have a helper method:
[MethodImpl(MethodImplOptions.NoInlining)]
public string GetCurrentMethod()
{
var st = new StackTrace();
var sf = st.GetFra...
What to return if Spring MVC controller method doesn't return value?
...onous calls to my simple Spring MVC backend. Most of the Spring controller methods look like this:
7 Answers
...
Export CSS changes from inspector (webkit, firebug, etc)
When I'm working with CSS, I'll often test in a browser - say, Chrome - right click an element, click Inspect Element, and edit the CSS right there. The use of arrow keys to change things like margin and padding makes lining things up super easy.
...
What are the differences between LinearLayout, RelativeLayout, and AbsoluteLayout?
...ference between LinearLayout, RelativeLayout, and AbsoluteLayout.
Could someone please tell me the exact differences between them?
...
jQuery: Check if div with certain class name exists
...at is returned from JQuery like so:
if ($(".mydivclass")[0]){
// Do something if class exists
} else {
// Do something if class does not exist
}
In this case if there is a truthy value at the first ([0]) index, then assume class exists.
Edit 04/10/2013: I've created a jsperf test case he...
How can I run a function from a script in command line?
I have a script that has some functions.
9 Answers
9
...
XML Schema (XSD) validation tool? [closed]
...
After some research, I think the best answer is Xerces, as it implements all of XSD, is cross-platform and widely used. I've created a small Java project on github to validate from the command line using the default JRE parser, which...
Changing password with Oracle SQL Developer
...ax for updating the password using SQL Developer is:
alter user user_name identified by new_password replace
old_password ;
You can check more options for this command here: ALTER USER-Oracle DOCS
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