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What does git rev-parse do?
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git rev-parse is an ancillary plumbing command primarily used for manipulation.
One common usage of git rev-parse is to print the SHA1 hashes given a revision specifier. In addition, it has various options to format this output such as --short for printing a ...
Get elements by attribute when querySelectorAll is not available without using libraries?
..." attribute:
function getAllElementsWithAttribute(attribute)
{
var matchingElements = [];
var allElements = document.getElementsByTagName('*');
for (var i = 0, n = allElements.length; i < n; i++)
{
if (allElements[i].getAttribute(attribute) !== null)
{
// Element exists wit...
Map over object preserving keys
The map function in underscore.js, if called with a javascript object, returns an array of values mapped from the object's values.
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Clear Application's Data Programmatically
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There's a new API introduced in API 19 (KitKat):
ActivityManager.clearApplicationUserData().
I highly recommend using it in new applications:
import android.os.Build.*;
if (VERSION_CODES.KITKAT <= VERSION.SDK_INT) {
((ActivityManager)...
GoogleTest: How to skip a test?
Using Google Test 1.6 (Windows 7, Visual Studio C++). How can I turn off a given test? (aka how can I prevent a test from running). Is there anything I can do besides commenting out the whole test?
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
...ad simple, but I cannot get it to work for the life of me.
I'm just trying to connect remotely to my MySQL server.
27 A...
Can I use an OR in regex without capturing what's enclosed?
I'm using rubular.com to build my regex, and their documentation describes the following:
4 Answers
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Getting pids from ps -ef |grep keyword
I want to use ps -ef | grep "keyword" to determine the pid of a daemon process (there is a unique string in output of ps -ef in it).
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How do I convert datetime to ISO 8601 in PHP
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I would note that using DATE_ISO8601 produces a date string which is slightly different than ISO8601 (the colon is missing in the TZ, ISO8601 expects times to be all with OR all without the colon, not a mixture) - date('c') does produces a stric...
Open a file from Cygwin
Is there an equivalent to OSX open command in cygwin. open opens a file with the default application for that type.
7 A...