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Find duplicate lines in a file and count how many time each line was duplicated?
...cally this is doesnt seem to be the most efficient approach (O(n log n)*avg_line_len where n is number of lines). I'm working on files that are several gigabytes large, so performance is a key issue. I wonder whether there is a tool that does just the counting in a single pass using a prefix tree (i...
How can I merge properties of two JavaScript objects dynamically?
...bj2
* @returns obj3 a new object based on obj1 and obj2
*/
function merge_options(obj1,obj2){
var obj3 = {};
for (var attrname in obj1) { obj3[attrname] = obj1[attrname]; }
for (var attrname in obj2) { obj3[attrname] = obj2[attrname]; }
return obj3;
}
...
How do I set the default font size in Vim?
...ks for the file. It should be something like ~/.vimrc, ~/.vim/vimrc, $HOME/_vimrc.
– FDinoff
May 4 '16 at 14:35
I feel...
How to force IntelliJ IDEA to reload dependencies from build.sbt after they changed?
...endency (I have to manually change the various .iml and .idea/libraries/SBT_SBT_.xml to the new version number). I'd like to follow up on that ticket.
– David B.
Dec 7 '13 at 3:50
...
How to open the Chrome Developer Tools in a new window?
...l the "Unlock into separate window" option.
– katalin_2003
Nov 6 '14 at 21:48
5
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Where does 'Hello world' come from?
...irst edition of the C book, was published in 1978 en.wikipedia.org/wiki/The_C_Programming_Language_(book) There was a "a 1974 Bell Laboratories internal memorandum by Brian Kernighan, Programming in C: A Tutorial" en.wikipedia.org/wiki/Hello_world_program
– barlop
...
What does the [Flags] Enum Attribute mean in C#?
... And in C# 7.2 it's even clearer with leading separator! 0b_0100
– Vincenzo Petronio
Oct 26 '19 at 8:51
...
Is it possible to group projects in Eclipse?
...rack/vote having it added to Project Explorer is bugs.eclipse.org/bugs/show_bug.cgi?id=266030.
– studgeek
Sep 18 '12 at 0:07
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Rails: How to get the model class name based on the controller class name?
...ss HouseBuyersController < ApplicationController
def index
@model_name = controller_name.classify
end
end
This is often needed when abstracting controller actions:
class HouseBuyersController < ApplicationController
def index
# Equivalent of @house_buyers = HouseBuyer.find(...
SQL selecting rows by most recent date
...ecent date".
Modified from http://wiki.lessthandot.com/index.php/Returning_The_Maximum_Value_For_A_Row
SELECT t.chargeId, t.chargeType, t.serviceMonth FROM(
SELECT chargeId,MAX(serviceMonth) AS serviceMonth
FROM invoice
GROUP BY chargeId) x
JOIN invoice t ON x.chargeId =t.chargeI...