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Automatic counter in Ruby for each?
...index { |blah, index| something(blah, index) }
This is something you can do from ruby 1.8.7 and 1.9.
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In a javascript array, how do I get the last 5 elements, excluding the first element?
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You can call:
arr.slice(Math.max(arr.length - 5, 1))
If you don't want to exclude the first element, use
arr.slice(Math.max(arr.length - 5, 0))
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python exception message capturing
This doesn't seem to work, I get syntax error, what is the proper way of doing this for logging all kind of exceptions to a file
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Select elements by attribute
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Do you mean can you select them? If so, then yes:
$(":checkbox[myattr]")
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How do I print bold text in Python?
How do I print bold text in Python?
12 Answers
12
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How do you get a list of the names of all files present in a directory in Node.js?
...ory using Node.js. I want output that is an array of filenames. How can I do this?
25 Answers
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How can I declare and use Boolean variables in a shell script?
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Revised Answer (Feb 12, 2014)
the_world_is_flat=true
# ...do something interesting...
if [ "$the_world_is_flat" = true ] ; then
echo 'Be careful not to fall off!'
fi
Original Answer
Caveats: https://stackoverflow.com/a/21210966/89391
the_world_is_flat=true
# ...do somethin...
Disable back button in android
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Override the onBackPressed method and do nothing if you meant to handle the back button on the device.
@Override
public void onBackPressed() {
if (shouldAllowBack()) {
super.onBackPressed();
} else {
doSomething();
}
}
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How do I disable right click on my web page?
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You can do that with JavaScript by adding an event listener for the "contextmenu" event and calling the preventDefault() method:
document.addEventListener('contextmenu', event => event.preventDefault());
That being said: DON'T ...
How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
Given this document saved in MongoDB
17 Answers
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