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How to undo “git commit --amend” done instead of “git commit”
...happens on top of a different commit from where the current branch head is now.
# Move the current head so that it's pointing at the old commit
# Leave the index intact for redoing the commit.
# HEAD@{1} gives you "the commit that HEAD pointed at before
# it was moved to where it currently point...
How can I check for “undefined” in JavaScript? [duplicate]
...n window; // true
"theFoo" in window; // false
If you are interested in knowing whether the variable hasn't been declared or has the value undefined, then use the typeof operator, which is guaranteed to return a string:
if (typeof myVar !== 'undefined')
Direct comparisons against undefined are ...
Jdbctemplate query for string: EmptyResultDataAccessException: Incorrect result size: expected 1, ac
... than one row that will result in IncorrectResultSizeDataAccessException . Now the correct way is not to catch this exception or EmptyResultDataAccessException, but make sure the query you are using should return only one row. If at all it is not possible then use query method instead.
List<Str...
Check that Field Exists with MongoDB
...
@fernandohur: yeah, but if you have less than one page of documents, you won't even see the difference. And if you were to run this query from external driver, I'm pretty sure most of them shield you from the cursor implementation detail.
...
What is the best open XML parser for C++? [duplicate]
...int of the code
and created DOM trees.
A headers-only implementation,
simplifying the integration process.
Simple license that allows use for
almost any purpose, both commercial
and non-commercial, without any
obligations.
Supports UTF-8 and partially UTF-16,
UTF-32 encodings.
Portable source code w...
How do I view cookies in Internet Explorer 11 using Developer Tools
... for ExtJS: Ext.Ajax.request({url: '/'});. Note that this should work even if the page does not exists (i.e. answer is 404). You might want to change the url so that you not break anything in your app ;-).
– Nux
Apr 28 '15 at 15:57
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How do you performance test JavaScript code?
...and easy to use, as are console.time(), console.profile(), and performance.now(). Chrome also gives you a timeline view which can show you what is killing your frame rate, where the user might be waiting, etc.
Finding documentation for all these tools is really easy, you don't need an SO answer for...
How to locate the vimrc file used by vim editor?
...y exist.
You can check the full path of your vimrc with
:echo $MYVIMRC
If the output is empty, then your vim doesn't use a user vimrc (just create it if you wish).
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Easy way to test a URL for 404 in PHP?
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If you are using PHP's curl bindings, you can check the error code using curl_getinfo as such:
$handle = curl_init($url);
curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
/* Get the HTML or whatever is linked in $url. *...
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android
... images aren't getting deallocated when your activity is destroyed.
It's difficult to say why this is without looking at your code. However, this article has some tips that might help:
http://android-developers.blogspot.de/2009/01/avoiding-memory-leaks.html
In particular, using static variables i...