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maxlength ignored for input type=“number” in Chrome
... the actual character length of the value, though -9999 to 9999 will cover all 0-4 digit numbers), or you can use a regular text input and enforce validation on the field with the new pattern attribute:
<input type="text" pattern="\d*" maxlength="4">
...
JavaScript get clipboard data on paste event (Cross browser)
...nce writing this answer: now that Firefox has added support in version 22, all major browsers now support accessing the clipboard data in a paste event. See Nico Burns's answer for an example.
In the past this was not generally possible in a cross-browser way. The ideal would be to be able to get t...
Receive result from DialogFragment
...u show the dialog, and then when your dialog is finished, from it you can call getTargetFragment().onActivityResult(getTargetRequestCode(), ...), and implement onActivityResult() in the containing fragment.
It seems like an abuse of onActivityResult(), especially as it doesn't involve activities at...
What is the difference between a User Control Library and a Custom Control Library?
... control base classes and provide additional functionality through code so all the added logic and representation must be implemented inside the code.
A user control is technically a normal content control which you can extend in some parts in the code but usually it is extended by placing other c...
How to display gpg key details without importing it?
...from the warning.
Technical Details: Listing OpenPGP Packets
Without installing any further packages, you can use gpg --list-packets [file] to view information on the OpenPGP packets contained in the file.
$ gpg --list-packets a4ff2279.asc
:public key packet:
version 4, algo 1, created 135647...
What are the differences between JSON and JavaScript object? [duplicate]
...al notation, but there are differences between them.
For example, in JSON all keys must be quoted, while in object literals this is not necessary:
// JSON:
{ "foo": "bar" }
// Object literal:
var o = { foo: "bar" };
The quotes are mandatory on JSON because in JavaScript (more exactly in ECMAScr...
End of support for python 2.7?
...
@Basic welll... that share is pretty slim: 25 over all python versions (4% code exec): cvedetails.com/product/18230/Python-Python.html?vendor_id=10210 vs php with 408 (27% code exec): cvedetails.com/product/128/PHP-PHP.html?vendor_id=74 or Java with 438 (3% code exec): cvede...
How do I retrieve my MySQL username and password?
...bles option.
Start the MySQL console client with the -u root option.
List all the users;
SELECT * FROM mysql.user;
Reset password;
UPDATE mysql.user SET Password=PASSWORD('[password]') WHERE User='[username]';
But DO NOT FORGET to
Stop the MySQL process
Start the MySQL Process normally (i.e. wi...
Is pass-by-value a reasonable default in C++11?
...by value into functions and methods is slow for large objects, and is generally frowned upon. Instead, C++ programmers tend to pass references around, which is faster, but which introduces all sorts of complicated questions around ownership and especially around memory management (in the event that ...
Grepping a huge file (80GB) any way to speed it up?
...
Here are a few options:
1) Prefix your grep command with LC_ALL=C to use the C locale instead of UTF-8.
2) Use fgrep because you're searching for a fixed string, not a regular expression.
3) Remove the -i option, if you don't need it.
So your command becomes:
LC_ALL=C fgrep -A 5 -...