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How to find a hash key containing a matching value
...ge", {"client_id"=>"2180"}]]
Note that the result will be an array of all the matching values, where each is an array of the key and value.
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How to center an iframe horizontally?
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HTML:
<div id="all">
<div class="sub">div</div>
<iframe>ss</iframe>
</div>
CSS:
#all{
width:100%;
float:left;
text-align:center;
}
div.sub, iframe {
width: 100px;
height: 50px;...
How to sort an array based on the length of each element?
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Just to add an information. This snippet won't work for all the cases.
– Arunkumar Srisailapathi
Apr 10 '16 at 12:42
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Format date to MM/dd/yyyy in JavaScript [duplicate]
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that's not actually MM/dd/yyyy. That's M/d/yyyy. Does your date need leading zeros?
– Ray Wadkins
Sep 25 '13 at 21:25
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Logical operator in a handlebars.js {{#if}} conditional
... options.fn(this);
}
return options.inverse(this);
});
You can then call the helper in the template like this
{{#ifCond v1 v2}}
{{v1}} is equal to {{v2}}
{{else}}
{{v1}} is not equal to {{v2}}
{{/ifCond}}
sha...
How to schedule a periodic task in Java?
...ook to Quartz it's a java framework wich works with EE and SE editions and allows to define jobs to execute an specific time
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Omitting the second expression when using the if-else shorthand
...o an option:
x==2 && dosomething();
dosomething() will only be called if x==2 is evaluated to true. This is called Short-circuiting.
It is not commonly used in cases like this and you really shouldn't write code like this. I encourage this simpler approach:
if(x==2) dosomething();
You...
How to make clang compile to llvm IR
...e correct where file extensions are concerned - and the clang frontend actually does the right thing if .bc is used; also, keep in mind that llvm-ld can act as frontend for the system toolchain, ie my previous answer using llvm-ld -native should work as expected....
– Christoph...
Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
... the crash you may need to setup a swap space for your micro instance. Actually performance wise is better to enable swap.
Steps below show how to make a swap space for your Micro instance. I assume you have AWS Account with a Micro instance running.
Run dd if=/dev/zero of=/swapfile bs=1M count=102...
Is Random class thread safe?
...share one instance of the Random class between multiple threads? And to call nextInt(int) from multiple threads in particular?
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