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How to check if a file is empty in Bash?
I have a file called diff.txt. Want to check if it is empty. Did something like this but couldn't get it working.
10 Answe...
Will iOS launch my app into the background if it was force-quit by the user?
... Unlike the application:didReceiveRemoteNotification: method, which is
called only when your app is running in the foreground, the system
calls this method when your app is running in the foreground or
background. In addition, if you enabled the remote notifications
background mode, the sys...
Meaning of acronym SSO in the context of std::string
... variables ("from the stack", which are variables that you create without calling malloc / new) are generally much faster than those involving the free store ("the heap", which are variables that are created using new). However, the size of automatic arrays is fixed at compile time, but the size of ...
$.getJSON returning cached data in IE8
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Just to let you know, Firefox and Chrome consider all Ajax request as non-cachable. IE (all versions) treat Ajax call just as other web request. That's why you see this behavior.
How to force IE to download data at each request:
As you said, use 'cache' or 'nocache' option...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
...ore setting up the listener.
That being said, a simple boolean flag would allow you to detect the rogue first selection event and ignore it.
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Object.getOwnPropertyNames vs Object.keys
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There is a little difference. Object.getOwnPropertyNames(a) returns all own properties of the object a. Object.keys(a) returns all enumerable own properties. It means that if you define your object properties without making some of them enumerable: false these two methods will give you the sa...
'AND' vs '&&' as operator
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If you use AND and OR, you'll eventually get tripped up by something like this:
$this_one = true;
$that = false;
$truthiness = $this_one and $that;
Want to guess what $truthiness equals?
If you said false... bzzzt, sorry, wrong!
$truthiness above has the ...
intellij - spring is not being recognized (Unmapped Spring configuration)
I am using IntelliJ IDEA and all plugins for Spring are activated,
but when I load my Maven project I have the following error:
...
Can I restore a single table from a full mysql mysqldump file?
I have a mysqldump backup of my mysql database consisting of all of our tables which is about 440 megs. I want to restore the contents of just one of the tables from the mysqldump. Is this possible? Theoretically, I could just cut out the section that rebuilds the table I want but I don't even know ...
jQuery: find element by text
... Yes, please use the appraoch @RocketHazmat uses, say you have 5 elements all prefixed with 'Register Contract' and each has a number suffix. You'll end up selecting them all, when in reality you only want the element with text: 'Register Contract 26'.
– Riveascore
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