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Is there an “exists” function for jQuery?
How can I check the existence of an element in jQuery?
43 Answers
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Ruby/Rails: converting a Date to a UNIX timestamp
How would I get a UNIX timestamp (number of seconds since 1970 GMT) from a Date object in a Rails app?
5 Answers
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What's the point of having pointers in Go?
I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference.
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Add Bootstrap Glyphicon to Input Box
How can I add a glyphicon to a text type input box? For example I want to have 'icon-user' in a username input, something like this:
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Remove empty array elements
Some elements in my array are empty strings based on what the user has submitted. I need to remove those elements. I have this:
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Get first n characters of a string
How can I get the first n characters of a string in PHP? What's the fastest way to trim a string to a specific number of characters, and append '...' if needed?
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Dictionary vs Object - which is more efficient and why?
What is more efficient in Python in terms of memory usage and CPU consumption - Dictionary or Object?
8 Answers
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How to determine whether a Pandas Column contains a particular value
I am trying to determine whether there is an entry in a Pandas column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data...
Get the index of the nth occurrence of a string?
Unless I am missing an obvious built-in method, what is the quickest way to get the n th occurrence of a string within a string?
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Get city name using geolocation
I managed to get the user's latitude and longitude using HTML-based geolocation.
11 Answers
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