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How to find the php.ini file used by the command line?
... is loaded when using PHP via the CLI (because you are running the command from that).
– Antony D'Andrea
Oct 15 '15 at 9:06
1
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Django's SuspiciousOperation Invalid HTTP_HOST header
...r.
There is discussion right now by the Django developers to change this from a 500 internal server error to a 400 response. See this ticket.
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How to use GNU Make on Windows?
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You pretty much should stay away from making msys or mingw a part of your environment variables for bloat reasons, but also because msys directory is local to itself. The path in msys will allow you to use make if its in mingw64's bin, however not speaking o...
Do the parentheses after the type name make a difference with new?
...t can actually affect your code's behavior. Much of the following is taken from comments made to an "Old New Thing" article.
Sometimes the memory returned by the new operator will be initialized, and sometimes it won't depending on whether the type you're newing up is a POD (plain old data), or if ...
How to drop rows of Pandas DataFrame whose value in a certain column is NaN
...e missing data, including dropna(), is built into pandas explicitly. Aside from potentially improved performance over doing it manually, these functions also come with a variety of options which may be useful.
In [24]: df = pd.DataFrame(np.random.randn(10,3))
In [25]: df.iloc[::2,0] = np.nan; df....
How to know if other threads have finished?
...t Exception when it completes, or
Use locks or synchronizers or mechanisms from java.util.concurrent, or
More orthodox, create a listener in your main Thread, and then program each of your Threads to tell the listener that they have completed.
How to implement Idea #5? Well, one way is to first c...
How to validate an email address in JavaScript
...essions is probably the best way. You can see a bunch of tests here (taken from chromium)
function validateEmail(email) {
const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,})...
Ternary operator is twice as slow as an if-else block?
...llows the X64 JIT to perform the inner loop entirely using registers aside from loading i from the array, while the X86 JIT places several stack operations (memory access) in the loop.
value is a 64-bit integer, which requires 2 machine instructions on X86 (add followed by adc) but only 1 on X64 (ad...
Start an Activity with a parameter
... You may want to make sure b != null before you start grabbing from it
– Andrew
Oct 12 '10 at 15:03
How ca...
The most accurate way to check JS object's type?
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|| (cache[key] = key.slice(8, -1).toLowerCase()); // get XXXX from [object XXXX], and cache it
};
}(this));
use as:
type(function(){}); // -> "function"
type([1, 2, 3]); // -> "array"
type(new Date()); // -> "date"
type({}); // -> "object"
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