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PHP Fatal error: Using $this when not in object context
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@Sarfraz No offense, but it is still wrong. You can call an instance method with ::. It is against E_STRICT, but it does work as long as the method body does not reference the instance scope, e.g. uses $this. Also, self::foo will not point to $this->foo. It references a clas...
Java Serializable Object to Byte Array
...Object);
out.flush();
byte[] yourBytes = bos.toByteArray();
...
} finally {
try {
bos.close();
} catch (IOException ex) {
// ignore close exception
}
}
Create an object from a byte array:
ByteArrayInputStream bis = new ByteArrayInputStream(yourBytes);
ObjectInput in = null;
tr...
Better way to cast object to int
... to signify a Nullable<int>. The "as" operator works like Convert.To____(), but think TryParse() rather than Parse(): it returns null rather than throwing an exception if the conversion fails.
Of these, I would prefer (int) if the object really is just a boxed integer. Otherwise use Conver...
android fragment- How to save states of views in a fragment when another fragment is pushed on top o
... Now on hitting back FragA comes to the top and the onCreateView() is called. Now I had FragA in a particular state before FragB got pushed on top of it.
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Reactjs convert html string to jsx
...se the dangerouslySetInnerHTML property:
<td dangerouslySetInnerHTML={{__html: this.state.actions}} />
React forces this intentionally-cumbersome syntax so that you don't accidentally render text as HTML and introduce XSS bugs.
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A migration to add unique constraint to a combination of columns
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Nope, it's all good. My bad! The unique constraint comes with the unique index.
– Paul Cantrell
Aug 24 '11 at 16:34
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How can I parse a CSV string with JavaScript, which contains comma in data?
...s.
A non-standard CSV solution
As austincheney correctly points out, you really need to parse the string from start to finish if you wish to properly handle quoted strings that may contain escaped characters. Also, the OP does not clearly define what a "CSV string" really is. First we must define wh...
ContextLoaderListener or not?
... the servlet's context, that stick with that, it's simpler.
Yes, the generally-encouraged pattern is to keep non-web stuff in the webapp-level context, but it's nothing more than a weak convention.
The only compelling reasons to use the webapp-level context are:
If you have multiple DispatcherSe...
Is there any sed like utility for cmd.exe? [closed]
...ershell saved me.
For grep there is:
get-content somefile.txt | where { $_ -match "expression"}
or
select-string somefile.txt -pattern "expression"
and for sed there is:
get-content somefile.txt | %{$_ -replace "expression","replace"}
For more detail see Zain Naboulsis blog entry.
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How should I unit test threaded code?
...ads acting upon it, and you can't test situations where these threads step all over each other, then your design needs to be redone. Its both as simple and as complex as this.
There are many ways to program for multithreading that avoids threads running through instances at the same time. The sim...