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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?

...c642cb6eb9a060e54bf8d69288fbee4904, the empty tree SHA1. git log --pretty=raw commit 9ed4ff9ac204f20f826ddacc3f85ef7186d6cc14 tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904 <==== author VonC <vonc@laposte.net> 1381232247 +0200 committer VonC <vonc@laposte.net> 1381232247 +0200 ...
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Making custom right-click context menus for my web-app

...for right click context menu in javascript: Right Click Context Menu Used raw javasScript Code for context menu functionality. Can you please check this, hope this will help you. Live Code: (function() { "use strict"; /*********************************************** Context Men...
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How to design a product table for many kinds of product where each product has many parameters

...ited the last paragraph to make it more clear, but it's about passing your raw EAV data to a process in a language which can deal with data transformations, lookups in a tree structure or any basic map reduce operations really quickly and in a memory efficient way. The specifics here would depend o...
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How to make a great R reproducible example

... in R: install.packages("devtools") library(devtools) source_url("https://raw.github.com/rsaporta/pubR/gitbranch/reproduce.R") reproduce(myData) Details: This function is an intelligent wrapper to dput and does the following: automatically samples a large data set (based on size and class. ...
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Why is x86 ugly? Why is it considered inferior when compared to others? [closed]

...gly small as CPUs become more and more limited by memory bandwidth than by raw computation, but many "x86 bashing" articles and attitudes come from an era when this cost was comparatively much larger. Update 2016: Anandtech has posted a discussion regarding opcode sizes under x64 and AArch64. ED...
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Why does C++ not have reflection?

...object can be optimized away. operator[] on a vector is only comparable to raw array indexing in performance because the entire operator can be inlined and thus removed entirely from the compiled code. C# and Java make a lot of guarantees about the output of the compiler. If I define a class in C#, ...
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Two-way encryption: I need to store passwords that can be retrieved

...attack will also give them full access to the keys involved. Sniffing the raw HTTP traffic will also give them the keys. Use SSL for all traffic. And make sure nothing on the server has any kind of vulnerabilities (CSRF, XSS, SQL Injection, Privilege Escalation, Remote Code Execution, etc). Edi...
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How to make a SPA SEO crawlable?

I've been working on how to make a SPA crawlable by google based on google's instructions . Even though there are quite a few general explanations I couldn't find anywhere a more thorough step-by-step tutorial with actual examples. After having finished this I would like to share my solution so th...
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How efficient can Meteor be while sharing a huge collection among many clients?

...e, each client caused an additional ~60MB of memory usage, even though the raw data transferred was only about 5MB. In our case, because the collection was static, we solved this problem by sending all the documents as a .json file, which was gzipped by nginx, and loading them into an anonymous col...
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A semantics for Bash scripts?

... print_function import os, sys '''Hacky barebones shell.''' try: input=raw_input except NameError: pass def main(): while True: cmd = input('prompt> ') args = cmd.split() if not args: continue cpid = os.fork() if cpid == 0: # We're in a child process ...