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Understanding repr( ) function in Python
... quote. Of course it does, otherwise it wouldn't be a valid string literal by Python rules. That's precisely what you asked for by calling repr.
Also note that the eval(repr(x)) == x analogy isn't meant literal. It's an approximation and holds true for most (all?) built-in types, but the main thing...
HTML code for an apostrophe
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Comment by Conexion from the edit I rejected: "If you are using HTML5, an apostrophe is defined in the spec as ' . If you are wanting a more backward-compatible code (' is not valid in HTML4), use: ’"
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What are MVP and MVC and what is the difference?
...sentation in WebForms. The reason is that the View is always created first by the ASP.NET runtime. You can find out more about both variants.
Two primary variations
Passive View: The View is as dumb as possible and contains almost zero logic. A Presenter is a middle man that talks to the View and th...
How do I change the number of open files limit in Linux? [closed]
...nforced limits
hard limits mark the maximum value which cannot be exceeded by setting a soft limit
Soft limits could be set by any user while hard limits are changeable only by root.
Limits are a property of a process. They are inherited when a child process is created so system-wide limits should...
What's the algorithm to calculate aspect ratio?
...eed to do is find the greatest common divisor (GCD) and divide both values by that. The GCD is the highest number that evenly divides both numbers. So the GCD for 6 and 10 is 2, the GCD for 44 and 99 is 11.
For example, a 1024x768 monitor has a GCD of 256. When you divide both values by that you ge...
How do you represent a graph in Haskell?
... I've just resorted to additional indirection, as you're suggesting; often by using a map from ids to the actual elements, and having elements contain references to the ids instead of to other elements. The main thing I didn't like about doing that (aside from the obvious inefficiency) is that it fe...
How does bash tab completion work?
... parts to the autocompletion:
The readline library, as already mentioned by fixje, manages the command line editing, and calls back to bash when tab is pressed, to enable completion. Bash then gives (see next point) a list of possible completions, and readline inserts as much characters as are ide...
Create a folder if it doesn't already exist
...0777 is already the default mode for directories and may still be modified by the current umask.
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Callback to a Fragment from a DialogFragment
...tion();
Fragment prev = getActivity().getFragmentManager().findFragmentByTag("dialog");
if (prev != null) {
ft.remove(prev);
}
ft.addToBackStack(null);
switch (type) {
case DIALOG_FRAGMENT:
DialogFragment dialogFrag = MyDialogFragment.newInstance(12...
What does the Reflect object do in JavaScript?
...
UPDATE 2015:
As pointed out by 7th's answer, now that ES6 (ECMAScript 2015) has been finalized, more appropriate documentation is now available:
ES6 spec, Reflection
MDN Reflect (including details and examples to all of its methods)
Original answer...