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How to allow only one radio button to be checked?
... named differently. One field is an ALL field, the other field is dynamic, based on a value in the URL. They want the user to only be able to select one radio.
– user3120861
Jul 24 at 17:06
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What does `void 0` mean? [duplicate]
... to worry about when writing code but it can add up enough over large code bases that most code minifiers replace undefined with void 0 to reduce the number of bytes sent to the browser.
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keytool error Keystore was tampered with, or password was incorrect
...ease make sure its for default debug.keystore file , not for your project based keystore file (Password might change for this).
Works well for MacOS Sierra 10.10+ too.
I heard, it works for linux environment as well. i haven't tested that in linux yet.
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How to create a self-signed certificate with OpenSSL
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Remember to use -sha256 to generate SHA-256-based certificate.
– Gea-Suan Lin
Jan 25 '16 at 6:13
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show 20 mo...
Why does one use dependency injection?
... point: Often your classes depend on each other. E.g. you could have a Database class which accesses your database (hah, surprise! ;-)), but you also want this class to do logging about accessing the database. Suppose you have another class Logger, then Database has a dependency to Logger.
So far, ...
How to add new column to MYSQL table?
...omething like:
$db = mysqli_connect("localhost", "user", "password", "database");
$name = $db->mysqli_real_escape_string($name);
$query = 'ALTER TABLE assesment ADD ' . $name . ' TINYINT NOT NULL DEFAULT \'0\'';
if($db->query($query)) {
echo "It worked";
}
Haven't tested it but should w...
Eclipse Workspaces: What for and why?
...perspectives ctr) then initiate separate workspace(s) could be appropriate based on development habits or possible language/frameworks "behaviors".
DLTK for examples is a beast that should be contained in a separate cage.
Lots of complains at forums for it stopped working (properly or not at all) a...
How do I calculate square root in Python?
...w_estimate = (estimate + num / estimate) / 2
print(new_estimate)
# Base Case: Comparing our estimate with built-in functions value
if new_estimate == math.sqrt(num):
return True
else:
return newtons_method(num, new_estimate)
For example we need to find 30's square r...
Add string in a certain position in Python
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If you want many inserts
from rope.base.codeanalyze import ChangeCollector
c = ChangeCollector(code)
c.add_change(5, 5, '<span style="background-color:#339999;">')
c.add_change(10, 10, '</span>')
rend_code = c.get_changed()
...
How to get current date in jquery?
...String();
var mm = (this.getMonth()+1).toString(); // getMonth() is zero-based
var dd = this.getDate().toString();
return yyyy + "/" + (mm[1]?mm:"0"+mm[0]) + "/" + (dd[1]?dd:"0"+dd[0]); // padding
};
var date = new Date();
console.log( date.yyyymmdd() ); // Assuming you have an open console
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