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Properly escape a double quote in CSV
...("), backslash (\) and NUL (the NULL byte).
Use fputcsv() to write, and fgetcsv() to read, which will take care of all.
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What is uintptr_t data type
...signed integer type that is capable of storing a data pointer. Which typically means that it's the same size as a pointer.
It is optionally defined in C++11 and later standards.
A common reason to want an integer type that can hold an architecture's pointer type is to perform integer-specific ope...
Why does this async action hang?
I have a multi-tier .Net 4.5 application calling a method using C#'s new async and await keywords that just hangs and I can't see why.
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How to programmatically take a screenshot on Android?
... save the file:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
And this is the code (running in an Activity):
private void takeScreenshot() {
Date now = new Date();
android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);
try {
//...
Why does overflow:hidden not work in a ?
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I'm not familiar with the specific issue, but you could stick a div, etc inside the td and set overflow on that.
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How to free memory in Java?
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Java uses managed memory, so the only way you can allocate memory is by using the new operator, and the only way you can deallocate memory is by relying on the garbage collector.
This memory management whitepaper (PDF) may help explain what's going on.
You can also call Sy...
Exact difference between CharSequence and String in java [duplicate]
...h can be modified
Any method which accepts a CharSequence can operate on all of these equally well. Any method which only accepts a String will require conversion. So using CharSequence as an argument type in all the places where you don't care about the internals is prudent. However you should us...
Django: Set foreign key using integer?
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Yep:
employee = Employee(first_name="Name", last_name="Name")
employee.type_id = 4
employee.save()
ForeignKey fields store their value in an attribute with _id at the end, which you can access directly to avoid visiting the database.
The _id version of...
Table fixed header and scrollable body
...ss "col1" to all the cells on the first column, "col2" con the second one, etc..
– Luke
Sep 1 '15 at 13:33
4
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argparse module How to add option without any argument?
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As @Felix Kling suggested use action='store_true':
>>> from argparse import ArgumentParser
>>> p = ArgumentParser()
>>> _ = p.add_argument('-f', '--foo', action='store_true')
>>> args = p.parse_args()
>>> args.foo
False
&g...