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How to convert an NSString into an NSNumber
How can I convert a NSString containing a number of any primitive data type (e.g. int , float , char , unsigned int , etc.)? The problem is, I don't know which number type the string will contain at runtime.
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Convert a series of parent-child relationships into a hierarchical tree?
I have a bunch of name-parentname pairs, that I'd like to turn into as few heirarchical tree structures as possible. So for example, these could be the pairings:
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How to load JAR files dynamically at Runtime?
Why is it so hard to do this in Java? If you want to have any kind of module system you need to be able to load JAR files dynamically. I'm told there's a way of doing it by writing your own ClassLoader , but that's a lot of work for something that should (in my mind at least) be as easy as calling ...
How to change UIPickerView height
Is it possible to change the height of UIPickerView? Some applications seem to have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder.
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How do I parse command line arguments in Bash?
...-option argument) (without getopt[s])
Usage demo-space-separated.sh -e conf -s /etc -l /usr/lib /etc/hosts
cat >/tmp/demo-space-separated.sh <<'EOF'
#!/bin/bash
POSITIONAL=()
while [[ $# -gt 0 ]]
do
key="$1"
case $key in
-e|--extension)
EXTENSION="$2"
shift # past argument...
How can I get list of values from dict?
How can I get a list of the values in a dict in Python?
5 Answers
5
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Is it possible to define more than one function per file in MATLAB, and access them from outside tha
When I was studying for my undergraduate degree in EE, MATLAB required each function to be defined in its own file, even if it was a one-liner.
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Execute JavaScript code stored as a string
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With eval("my script here") function.
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Declaring array of objects
I have a variable which is an array and I want every element of the array to act as an object by default. To achieve this, I can do something like this in my code.
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Hidden Features of Visual Studio (2005-2010)?
Visual Studio is such a massively big product that even after years of working with it I sometimes stumble upon a new/better way to do things or things I didn't even know were possible.
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