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How to kill an Android activity when leaving it so that it cannot be accessed from the back button?
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237
You just need to call finish()
Intent intent = new Intent(this, NextActivity.class);
startActi...
Why doesn't Console.Writeline, Console.Write work in Visual Studio Express?
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306
Console.WriteLine writes your output to the console window opened by your application (think b...
Android Writing Logs to text File
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outkkastoutkkast
3,09811 gold badge1515 silver badges66 bronze badges
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Timeout jQuery effects
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edited Aug 1 '13 at 13:18
Mchl
56.6k99 gold badges102102 silver badges113113 bronze badges
an...
isset() and empty() - what to use
...as been set to NULL
Your code would be fine as:
<?php
$var = '23';
if (!empty($var)){
echo 'not empty';
}else{
echo 'is not set or empty';
}
?>
For example:
$var = "";
if(empty($var)) // true because "" is considered empty
{...}
if(isset($var)) //tru...
Delete fork dependency of a GitHub repository
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answered Apr 17 '13 at 6:13
Thomas MoulardThomas Moulard
3,54122 gold badges1616 silver badges2626 bronze badges
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Rails 4: List of available datatypes
...SchemaStatements.html#method-i-add_column
These are the same as with Rails 3.
If you use PostgreSQL, you can also take advantage of these:
:hstore
:json
:jsonb
:array
:cidr_address
:ip_address
:mac_address
They are stored as strings if you run your app with a not-PostgreSQL database.
Edit, 201...
Where are my postgres *.conf files?
I have recently reinstalled postgresql 8.3 on my Ubuntu 8.04 after update. Used EnterpriseDB package. I can connect to the database locally, I see system DB postgres but I can't configure it because I can't find config files. Searched through entire hard drive and found only samples like pg_hba.con...
Font size in CSS - % or em?
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Glenn SlavenGlenn Slaven
31.3k2424 gold badges105105 silver badges161161 bronze badges
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