Introduction The Schwartzian transform -- also known as map-sort-map or decorate-sort-undecorate (DSU) --, attributed to Randal Schwartz of the Perl community, sorts elements of a list or array by a metric which maps each element to its “sort value”. Example in Python :) For instance in Python...

My document says: This is incorrect: if b == 1 This is correct: if (b ==1) It says that the parentheses forces the expression inside to be evaluated first. Why does this matter?

I asked another question recently regarding constructors calling constructors in order to organise my code properly but the answers really ended up giving me more questions than answers (which is good in principle) but it left me more confused than ever regarding how to design my application, esp...

I want to use production data to generate "user activity" metrics. My thought is to set up a cron job that regularly reads production databases to summarize user activity and then stores the results in a separate metrics database. This metrics database can then be used to generate various dashbo...

I'm looking for written learning resources (books, papers, non-video tutorials) on how to design concurrent data structures and algorithms. To prevent unsatisfactory answers, let me stress that I'm more interested in the process of coming up with data structures and algorithms, than the final re...

What does it mean by concept of variable-free programming? I have to write a program which adhere to concept of variable free programming for my class assignment. but i have no idea about the concept of variable-free programming.

I maintain a Python 3 package (ocrmypdf) that works with other programs primarily by making subprocess calls. This is partly for historical reasons – it is shell script that grew up. I have since added the amazing CFFI to access a C library that does not provide any executables, and I am looking...

Disclaimer. This is not a rant about an employer trying to get stuff done for free. Nor is it a grunt about salary levels, unemployment, scarcity of remote positions etc. On occasion, I find myself having more time on my hands (between assignments, vacation that turns out to be boring, nothing f...

I am new in android and I have a small problem my question is How can I move from an activity to MapActivity?? and how can I send data from an activity to MapActivity? thanks

Can I have an explanation and an example for each Loop. Also what is the purpose of Count ++? Also how do you read from a textfield filled with arrays in it?

guys, I am trying to organize a programming contest for my school. But I don't know what type of question to frame. Can anyone help me frame some standard problems

i have to create a weekly training program for an institution using asp.net and sql. in this i have to take subjects from a master file ( excel file having different list of subjects for each course in the institution with the allocated hour to complete each subject ). and we have to retrieve dat...

I have been searching the web for quite some time now, but the plethora of opinions/comments/articles about licensing questions make it difficult to verify how trustworthy the various sources are. Also, they're often contradictory which left me behind confused after my search. Since it's probably...

So i have come across multiple ways for describing a javascript function but never understood how and why of it. A good explanation would really help on the following. function foo() {}; foo: function() {}; function foo() { var bar = function() {} this.bar2 = function() { } }

Good day guys, I have a rather random question that I was hoping you might provide me with a good answer to. I'm a soon to be graduated software engineering student who just recently moved to London to live with my girlfriend. Since coming here I've been looking for future graduate / junior job...

In colleges and in algorithm textbooks , it is quite common for the teacher and author to explain control flow in pseudo-code . With the advent of more expressive languages like Python and Haskell among others , is it reasonable that colleges switch to explain algorithms via one of these language...

I want to know if it is normal and logical to not use Auth::attempt() function in Laravel. Thanks

Can someone interpret for me why Twitter is considered such a lousy app? Apparently 5 disliked my question:

Having issues with getting month and day to display, including leap year etc. This code is textbook, found it in archive whilst riffling for deleted files.. only the month displays..ideally it should work in tandem as year, month and day.. Code is as follows; /* JavaScript */ function getSel...

How do I create, a graphic window, with blue background? I think it is called a graphic window. Maybe it's called a GUI window. I'm not sure what this is called. -do not use TKinter or any other module. -use python 2.7 please. My goal: Learn to create shapes, lines and colors. I want to see, wh...

I am working on a personal project using Python. I have been using version control to the best of my abilities and if you would like to check it out and run the app https://github.com/CodeAmend/old-bull-tools/tree/develop if you prefer Floobits, look at my actual code in a editor here: https://f...

At our company, we do not use any design documents. We have three employees total so all product design discussion happens in person, or on Slack. (We are also on the pleb Slack package that only allows viewing the most recent messages.) Our product is still in early stages, and we often revisit...

I am creating a website in php for one of my client. i wanted to use few piece of code from a Open source code based on GPL-3.0 license. e.g i wanted to use validation code from that lib and modify the 30% of the code for my requirements. Only my client will be using that software and i will pro...

If a personal repository with copyright/bsd license file is transferred to a github organization that consists of more than just the original copyright holder, since a group of people (the organisation) agreed on further developing that code -- what happens to the license and copyright stated in ...

This seems off to me as you would expect multiple async operations to be allowed without having to wait for a dispatcher to complete. In one of my paid gigs, we are having issues with this and had to customize the dispatcher with a debounce logic. Can someone explain why this was a design choice...

Currently I'm studying .NET Core and in the early docs which first introduced .NET Core we see that talk about the many different verticals. This can be seem in this picture: In all the verticals we see the runtime, the framework, but there's also this "App Model" thing. Also, watching a vide...

I just posted a question about business rules in MVC views; when going to tag the question I was looking for business-something and found the business-logic and business-rules tags, neither of which have a tag wiki. business-logic seems to be more used with 80 questions tagged vs business-rules ...

I am in the process of writing a Ruby on Rails web application for my university's department. For some of our resources in the web application, e.g. Project, are complex with their view layer logic: a Project can be created by admin or faculty users. after submission, faculty cannot update s...

In many approaches to software development like agile methodologies, Domain-Driven Design and Object Oriented Analysis and Design, we are encouraged to take one iterative approach to development. So we are not supposed to get our domain model done right in the first time we start working in the...

Normally, browsers should not send cookies that have Secure option if connection is unsecured (i.e. http instead of https). Is there a configuration option or a plugin that would allow to change this behaviour for particular domain in Firefox or Chrome? I would like to use such option for conv...

I was wondering how I can insert a asterisk (char) in between numbers in an ArrayList. I get that I can't add an char in an Integer ArrayList, and I read that I can 'transform' the asterisk in an int, but it seemed a little vague. This was my attempt, but it doesn't really work. Is there another ...