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Why can Java Collections not directly store Primitives types?
...d one that some consider a mistake. Containers want Objects and primitives don't derive from Object.
This is one place that .NET designers learned from the JVM and implemented value types and generics such that boxing is eliminated in many cases. In CLR, generic containers can store value types as ...
Evaluating string “3*(4+2)” yield int 18 [duplicate]
...of this answer when applied to old school .Net, but the new Core framework does not have DataTables. Is there anything that can do this in .Net Core?
– Eric
Mar 14 '17 at 21:12
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How is the default submit button on an HTML form determined?
...k() then the submit that you had a reference to is considered active; this doesn't really fall under the remit of your question since here the submit button is unambiguous but I thought I'd include it for people who read the first part and wonder how to make a submit button successful via JS form su...
What is the most efficient way to loop through dataframes with pandas? [duplicate]
...unction for iterating over rows.
for index, row in df.iterrows():
# do some logic here
Or, if you want it faster use itertuples()
But, unutbu's suggestion to use numpy functions to avoid iterating over rows will produce the fastest code.
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Go: panic: runtime error: invalid memory address or nil pointer dereference
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According to the docs for func (*Client) Do:
"An error is returned if caused by client policy (such as CheckRedirect), or if there was an HTTP protocol error. A non-2xx response doesn't cause an error.
When err is nil, resp always contains a...
Implicit “Submit” after hitting Done on the keyboard at the last EditText
...some apps where when I fill my username, then go to my password, if I hit "Done" on the keyboard, the login form is automatically submitted, without me having to click the submit button. How is this done?
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How do I see the last 10 commits in reverse-chronological order with SVN?
...py (latest svn update, run svn info to see). So yes, if it's OK for you to download all commits first, this combination will work:
svn update
svn log -l 10
However, I'm mostly interested in showing the ALL latest commits without first updating my woking copy, so I mostly compare my log to HEAD f...
How to change default timezone for Active Record in Rails?
...hrice, before saving times in the database in a non-UTC format.
Note
Do not forget to restart your Rails server after modifying application.rb.
Remember that config.active_record.default_timezone can take only two values
:local (converts to the timezone defined in config.time_zone)
:utc ...
What is q=0.5 in Accept* HTTP headers?
What do these 'q=%f' mean?
3 Answers
3
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Generate random string/characters in JavaScript
I want a 5 character string composed of characters picked randomly from the set [a-zA-Z0-9] .
77 Answers
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