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Check if a Class Object is subclass of another Class Object in Java
I'm playing around with Java's reflection API and trying to handle some fields. Now I'm stuck with identifying the type of my fields. Strings are easy, just do myField.getType().equals(String.class) . The same applies for other non-derived classes. But how do I check derived classes? E.g. LinkedLi...
What's the best way to retry an AJAX request on failure using jQuery?
...rl',
type : 'POST',
data : ....,
tryCount : 0,
retryLimit : 3,
success : function(json) {
//do something
},
error : function(xhr, textStatus, errorThrown ) {
if (textStatus == 'timeout') {
this.tryCount++;
if (this.tryCount <...
Git add all files modified, deleted, and untracked?
Is there a way to add all files no matter what you do to them whether it be deleted, untracked, etc? like for a commit. I just don't want to have to git add or git rm all my files every time I commit, especially when I'm working on a large product.
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What is a dependency property?
...g for data binding built in. If you bind something to them, they'll notify it when they change.
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SQL Server equivalent of MySQL's NOW()?
...get a datetime field to show the current time. In MySQL I'd use NOW() but it isn't accepting that.
4 Answers
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Regular expression to match non-ASCII characters?
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This should do it:
[^\x00-\x7F]+
It matches any character which is not contained in the ASCII character set (0-127, i.e. 0x0 to 0x7F).
You can do the same thing with Unicode:
[^\u0000-\u007F]+
For unicode you can look at this 2 res...
SVN checkout ignore folder
...e contents of 'bar' down:
$ cd bar && svn update --set-depth infinity
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What are the obj and bin folders (created by Visual Studio) used for?
...propriate folder, depending on which type of build you perform. This makes it easy for you to determine which executables are built with debugging symbols, and which were built with optimizations enabled and ready for release.
Note that you can change where Visual Studio outputs your executable fil...
How to create and handle composite primary key in JPA
...s from the same data entry. In other words, I want to duplicate the entry with another version number.
4 Answers
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Vim: faster way to select blocks of text in visual mode
I have been using vim for quite some time and am aware that selecting blocks of text in visual mode is as simple as SHIFT + V and moving the arrow key up or down line-by-line until I reach the end of the block of text that I want selected.
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