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PHP case-insensitive in_array function
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To make it a drop-in replacement for in_array, returning a bool, it becomes: count(preg_grep('/^'.preg_quote($needle).'/$',$a)>0). Not so elegant, then. (Notice the ^ and $ characters are required, unless partial matching is desired.) However if you...
Remove specific characters from a string in Python
...nced pythonators, who will see a doubly-nested structure and think for a moment that something more complicated is going on.
Starting in Python 2.6 and newer Python 2.x versions *, you can instead use str.translate, (but read on for Python 3 differences):
line = line.translate(None, '!@#$')
or r...
How to iterate through SparseArray?
...n. I hadn't properly noticed the keyAt(index) function.
So I'll go with something like this:
for(int i = 0; i < sparseArray.size(); i++) {
int key = sparseArray.keyAt(i);
// get the object by the key.
Object obj = sparseArray.get(key);
}
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Pandas - How to flatten a hierarchical index in columns
I have a data frame with a hierarchical index in axis 1 (columns) (from a groupby.agg operation):
17 Answers
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Create or write/append in text file
I have a website that every time a user logs in or logs out I save it to a text file.
7 Answers
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Can you target with css?
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BR generates a line-break and it is only a line-break. As this element has no content, there are only few styles that make sense to apply on it, like clear or position. You can set BR's border but you won't see it as it has no visual dimension.
If you like to visually separate two sentence...
How do I check if file exists in Makefile so I can delete it?
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The second top answer mentions ifeq, however, it fails to mention that these must be on the same level as the name of the target, e.g., to download a file only if it doesn't currently exist, the following code could be used:
download:
ifeq (,$(wil...
How to call getClass() from a static method in Java?
I have a class that must have some static methods. Inside these static methods I need to call the method getClass() to make the following call:
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Android: Share plain text using intent (to all messaging apps)
I'm trying to share some text using an intent:
8 Answers
8
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How do you make an array of structs in C?
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Also, I have a question about the placement between the declaration of the struct type and then actually making an instance of it - I have a different struct, one that I defined the contents of below where I first make an instance of it (just one this time, not an...