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Javascript when to use prototypes
...ultiple Car() instances.
var volvo = new Car(),
saab = new Car();
Now, you know each car will need to drive, turn on, etc. Instead of attaching a method directly to the Car() class (which takes up memory per each instance created), you can attach the methods to the prototype instead (creat...
In Android, how do I set margins in dp programmatically?
...arams. If you use relative layout, import LinearLayout.LayoutParams , etc.
Now, if you set the margin using Layout_marginLeft, Right, etc, you need to update margin in this way
layoutParams.setMargins(left, top, right, bottom);
If you set margin using the new layout_marginStart, you need to update ...
How to trigger HTML button when you press Enter in textbox?
...t to the button you'd like to be default and type=button to other buttons. Now in the form below you can hit Enter in any input fields, and the Render button will work (despite the fact it is the second button in the form).
Example:
<button id='close_renderer_button' class='btn btn-success...
Which parallel sorting algorithm has the best average case performance?
...
This would have been a great answer, once. Now, most of the links are broken.
– Tim Long
Apr 14 '19 at 0:46
add a comment
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Should I pass an std::function by const-reference?
...id> run_in_ui_thread( std::function<void()> const& ) // (B)
Now, we are likely to use these as follows:
run_in_ui_thread( [=]{
// code goes here
} ).wait();
which will create an anonymous closure (a lambda), construct a std::function out of it, pass it to the run_in_ui_thread fun...
Unable to update the EntitySet - because it has a DefiningQuery and no element exis
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This solved my issue yet I don't know how you came up with answers and why your suggestion solved the issue.
– swcraft
Dec 28 '16 at 23:03
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Should try…catch go inside or outside a loop?
...on was getting on my nerves! In the case of optimizations, since we can't know which way the performance would be affected, I guess were back to try-it-and-test (as always).
– Jeffrey L Whitledge
Sep 27 '08 at 18:35
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Why would iterating over a List be faster than indexing through it?
... item2 -> print item2 etc.
all in a single traversal, which is O(N).
Now, going to the other implementation of List which is ArrayList, that one is backed by a simple array. In that case both of the above traversals are equivalent, since an array is contiguous so it allows random jumps to arbi...
Tool to convert Python code to be PEP8 compliant
I know there are tools which validate whether your Python code is compliant with PEP8, for example there is both an online service and a python module .
...
Unit Testing AngularJS directive with templateUrl
...teCache. This solution is much less flexible, but it gets the job done for now.
// my-test.js
// Make template available to unit tests without Karma
//
// Disclaimer: Not using Karma may result in bad karma.
beforeEach(inject(function($templateCache) {
var directiveTemplate = null;
var req...