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Loop inside React JSX
...;/tbody>
Re: transpiling with Babel, its caveats page says that Array.from is required for spread, but at present (v5.8.23) that does not seem to be the case when spreading an actual Array. I have a documentation issue open to clarify that. But use at your own risk or polyfill.
Vanilla ES5
Ar...
How do you get the logical xor of two variables in Python?
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You can always use the definition of xor to compute it from other logical operations:
(a and not b) or (not a and b)
But this is a little too verbose for me, and isn't particularly clear at first glance. Another way to do it is:
bool(a) ^ bool(b)
The xor operator on two boo...
C99 stdint.h header and MS Visual Studio
To my amazement I just discovered that the C99 stdint.h is missing from MS Visual Studio 2003 upwards. I'm sure they have their reasons, but does anyone know where I can download a copy? Without this header I have no definitions for useful types such as uint32_t, etc.
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How does Java handle integer underflows and overflows and how would you check for it?
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If it overflows, it goes back to the minimum value and continues from there. If it underflows, it goes back to the maximum value and continues from there.
You can check that beforehand as follows:
public static boolean willAdditionOverflow(int left, int right) {
if (right < 0 &...
How can I reconcile detached HEAD with master/origin?
...mmit that was most recently processed by the rebase operation.
To recover from your situation, you should create a branch that points to the commit currently pointed to by your detached HEAD:
git branch temp
git checkout temp
(these two commands can be abbreviated as git checkout -b temp)
This ...
Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
..., the text has been changed. It is legitimate to make further changes to s from this callback, but be careful not to get yourself into an infinite loop, because any changes you make will cause this method to be called again recursively. (You are not told where the change took place because other aft...
window.location.reload with clear cache [duplicate]
...r cache too, so on page refresh the page has latest versions of everything from server.
Other browsers except IE are not getting latest content.
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Git Gui: Perpetually getting “This repository currently has approximately 320 loose objects.”
...e performance issue to you. This should be fixable by running this command from the command line:
cd path/to/your/git/repo
git gc --aggressive
From the output of git help gc:
Runs a number of housekeeping tasks within the current repository, such as compressing file revisions (to reduce disk space...
addEventListener vs onclick
...t)
Earlier versions of Internet Explorer implement javascript differently from pretty much every other browser. With versions less than 9, you use the attachEvent[doc] method, like this:
element.attachEvent('onclick', function() { /* do stuff here*/ });
In most other browsers (including IE 9 a...
Comment Inheritance for C# (actually any language)
...low up the code unnecessarily. If a tool can understand what a method does from its name, than a person can also understand and no doc is needed.
– Lensflare
Jan 8 '16 at 12:59
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