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What does the Java assert keyword do, and when should it be used?
... but are not turned on by default.
An example:
public Foo acquireFoo(int id) {
Foo result = null;
if (id > 50) {
result = fooService.read(id);
} else {
result = new Foo(id);
}
assert result != null;
return result;
}
...
How to use XPath contains() here?
...-value that contains a Model substring.
Examples
XML
<r>
<ul id="one">
<li>Model A</li>
<li>Foo</li>
</ul>
<ul id="two">
<li>Foo</li>
<li>Model A</li>
</ul>
</r>
XPaths
//ul[contains(l...
Case insensitive comparison NSString
...nil, your if will give true as sending caseInsensitiveCompare to nil is valid and results in another nil which, in our case, compared with NSOrderedSame will return true (NSOrderedSame is defined as 0). This can be a source of quite devastating bugs, as it was in my case. Cheers!
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Does MySQL foreign_key_checks affect the entire database?
...
It is session-based, when set the way you did in your question.
https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html
According to this, FOREIGN_KEY_CHECKS is "Both" for scope. This means it can be set for session:
SET FOREIGN_KEY_CHECKS=0;
or glob...
Embed YouTube video - Refused to display in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'
...sure the URL contains embed rather watch as the /embed endpoint allows outside requests, whereas the /watch endpoint does not.
<iframe width="420" height="315" src="https://www.youtube.com/embed/A6XUVjK9W4o" frameborder="0" allowfullscreen></iframe>
...
right click context menu for datagridview
I have a datagridview in a .NET winform app. I would like to rightclick on a row and have a menu pop up. Then i would like to select things such as copy, validate, etc
...
OpenShift rhc setup using multiple accounts
...mand to specify the login name OR
rhc app create <appname> <cartridge> [-l <login1/login2>]
2) Run "rhc setup -l LOGIN" between the sessions. Once done managing apps from one account you can end the session for it by running "rhc account logout".
rhc setup -l <login1> # ...
Position Absolute + Scrolling
...the text in a div element and include the absolutely positioned element inside of it.
<div class="container">
<div class="inner">
<div class="full-height"></div>
[Your text here]
</div>
</div>
Css:
.inner: { position: relative; height: ...
Determine version of Entity Framework I am using?
...ework and list the version the project has installed.
PM> Get-Package
Id Version Description/Release Notes ...
How to Delete using INNER JOIN with SQL Server?
...
@bluefeet could you provide the right syntax for SQL Server for deleting from both tables?
– oabarca
May 21 '14 at 14:43
47
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