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Make a float only show two decimal places
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I made a swift extension based on above answers
extension Float {
func round(decimalPlace:Int)->Float{
let format = NSString(format: "%%.%if", decimalPlace)
let string = NSString(format: format, self)
return Float(atof...
How to remove all characters after a specific character in python?
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and btw, for completeness, the RE-based solution is 2.54 usec, i.e., way slower than either @Ayman's or @Ned's.
– Alex Martelli
May 24 '09 at 22:58
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grep a tab in UNIX
... about 30% slower than using grep -P. This might be trivial and irrelevant based on the use case, and awk may be better simply for readability and portability.
– theferrit32
Sep 12 '19 at 16:37
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Serving static files with Sinatra
...oes extra stuff for you github.com/sinatra/sinatra/blob/master/lib/sinatra/base.rb#L351
– iain
Dec 10 '15 at 23:07
1
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Change the default editor for files opened in the terminal? (e.g. set it to TextEdit/Coda/Textmate)
... open uses Launch Services to determine the file type, mostly based on its extension. If the file has an unknown extension, it'll fail to open the file. Generally, your CLI editor should be something that assumes text files...
– Gordon Davisson
A...
Pretty Printing a pandas dataframe
How can I print a pandas dataframe as a nice text-based table, like the following?
9 Answers
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How can I get the iOS 7 default blue color programmatically?
...7.0, all subclasses of UIView derive their behavior for tintColor from the base class. See the discussion of tintColor at the UIView level for more information.
Assuming you don't change the tintColor before grabbing the default value, you can use:
self.view.tintColor
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How to get Git to clone into current directory
...s to . and .. by default so is a new directory technically "empty" in Unix-based systems, at all? I mean, I guess you could unlink . and unlink .. but that might cause you huge problems later if you forget to re-link again after cloning....
– SeldomNeedy
Jul 23...
compareTo() vs. equals()
...o override hashcode when we override equals because if the class uses hash-based collections, including HashMap, HashSet, and Hashtable the class wont function properly
– varunthacker
Jul 6 '12 at 15:29
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using lodash .groupBy. how to add your own keys for grouped output?
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}];
console.log(
_.chain(data)
// Group the elements of Array based on `color` property
.groupBy("color")
// `key` is group's name (color), `value` is the array of objects
.map((value, key) => ({ color: key, users: value }))
.value()
);
<script src="https://c...