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What does 'var that = this;' mean in JavaScript?
...t this to have the same value as in the outer function.
var car = {};
car.starter = {};
car.start = function(){
var that = this;
// you can access car.starter inside this method with 'this'
this.starter.active = false;
var activateStarter = function(){
// 'this' now point...
How can I strip first X characters from string using sed?
... You can also specify the length with a second parameter: ${var:5:2} will start at 1 and return 12.
– Max Candocia
Mar 29 '18 at 18:21
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In Docker, what's the difference between a container and an image? [duplicate]
...t's the difference between a container and an image in Docker? In the Get started with Docker tutorial these terms are both used, but I do not understand the difference.
...
Disable activity slide-in animation when launching new activity?
...LAG_ACTIVITY_NO_ANIMATION flag works fine for disabling the animation when starting activities.
To disable the similar animation that is triggered when calling finish() on an Activity, i.e the animation slides from right to left instead, you can call overridePendingTransition(0, 0) after calling fi...
GridLayout (not GridView) how to stretch all children evenly
... android:layout_height="wrap_content"
android:layout_gravity="start"
android:text="Button 2" />
<Space
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1" />
</LinearLa...
Start thread with member function
I am trying to construct a std::thread with a member function that takes no arguments and returns void . I can't figure out any syntax that works - the compiler complains no matter what. What is the correct way to implement spawn() so that it returns a std::thread that executes test() ?
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How to run a makefile in Windows?
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If you have Visual Studio, run the Visual Studio Command prompt from the Start menu, change to the directory containing Makefile.win and type this:
nmake -f Makefile.win
You can also use the normal command prompt and run vsvars32.bat (c:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\T...
How much faster is Redis than mongoDB?
...i)*100 for i in range(num)}
# run tests
for test in tests:
start = time.time()
test(data)
elapsed = time.time() - start
print "Completed %s: %d ops in %.2f seconds : %.1f ops/sec" % (test.__name__, num, elapsed, num / elapsed)
if __name__ == '__main__':
n...
phantomjs not waiting for “full” page load
...eOutMillis ? timeOutMillis : 3000, //< Default Max Timout is 3s
start = new Date().getTime(),
condition = (typeof(testFx) === "string" ? eval(testFx) : testFx()), //< defensive code
interval = setInterval(function() {
if ( (new Date().getTime() - start < ...
Excel Date to String conversion
...u:mm:ss" because in Dutch, 'year' is 'jaar' and 'hour' is 'uur' i.e. other starting letters (while 'day', 'month', 'minutes' and 'seconds' start with the same letters in both Dutch and English). Basically, translate the starting letters of the formats to the language of your OS.
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