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How to delete cookies on an ASP.NET website
...Session.Abandon will clear the ASP.NET session cookie, but not cookies you set manually, like userID here. And Cookies["whatever"] is never null; the framework will create a cookie if you ask for a non-existent one.
– Andomar
Jul 9 '11 at 14:53
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Making the iPhone vibrate
How can the iPhone be set to vibrate once?
12 Answers
12
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...owever not in the case of appending elements to the uninitialized array. isset() language construct can be used to detect if a variable has been already initialized. Additionally and more ideal is the solution of empty() since it does not generate a warning or error message if the variable is not in...
Why do you create a View in a database?
...lect certain columns and/or rows from a table (or tables), and permissions set on the view instead of the underlying tables. This allows surfacing only the data that a user needs to see.
3. Views can simplify supporting legacy code
If you need to refactor a table that would break a lot of code, y...
Sqlite: CURRENT_TIMESTAMP is in GMT, not the timezone of the machine
...e the start of unix-time) - and connecting with a client with other locale settings will display wrong times, without an easy way to correct.
– Falco
Aug 27 at 9:53
add a comm...
How do I remove the first characters of a specific column in a table?
...ather than just return doctored results), you can do this:
UPDATE MyTable
SET MyColumn = RIGHT(MyColumn, LEN(MyColumn) - 4)
He's on the right track, but his solution will keep the 4 characters at the start of the string, rather than discarding said 4 characters.
...
Should I impose a maximum length on passwords?
... simply passing the first x chars into the hashing(). (The way to check is set a password to beyond the limit, then try to login with a variation of the password characters beyond the max-length).
– benc
Jun 28 '12 at 5:48
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How do you select a particular option in a SELECT element in jQuery?
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This is wrong because you are SETTING the value of ALL the SELECT elements to the_value. .val is not selector/filter function! It is a property accessor and passing it that string SETS the value. I tried to take my upvote back but was too late after I r...
Javascript event handler with parameters
...rrectly. If the value of your params change each time the event handler is set, it will produce unexpected results because it doesn't close over the value of param1 or param2. If those values change, they will not be set to the value which they were during the time the event handler was created. The...
Css height in percent not working [duplicate]
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You need to set a 100% height on all your parent elements, in this case your body and html. This fiddle shows it working.
html, body { height: 100%; width: 100%; margin: 0; }
div { height: 100%; width: 100%; background: #F52887; }
...