Javascript is a programming language with a peculiar twist. Its event driven model means that nothing blocks and everything runs concurrently. This is not to be confused with the same type of concurrency as running in parallel on multiple cores. Javascript is single threaded so each program runs on a single core yet every line of code executes without waiting for anything to return. This sounds weird but it's true. If you want to have any type of sequential ordering you can use events, callbacks, or as of late promises.
# https://github.com/jiaaro/pydub | |
from pydub import AudioSegment | |
files_path = '' | |
file_name = '' | |
startMin = 9 | |
startSec = 50 |
This is a ServiceWorker template to turn small github pages into offline ready app.
Whenever I make small tools & toys, I create github repo and make a demo page using github pages (like this one).
Often these "apps" are just an index.html
file with all the nessesary CSS and JavaScript in it (or maybe 2-3 html/css/js
files). I wanted to cache these files so that I can access my tools offline as well.
Make sure your github pages have HTTPS enforced, you can check Settings > GitHub Pages > Enforce HTTPS
of your repository.
enum { BMAX = 32, BMIN = BMAX / 2, BHEIGHT = 6 }; | |
struct BNode { | |
uint32_t length; | |
Key keys[BMAX]; | |
union { | |
BNode *children[BMAX]; | |
Value values[BMAX]; | |
}; | |
}; |
Picking the right architecture = Picking the right battles + Managing trade-offs
- Clarify and agree on the scope of the system
- User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?
No, seriously, don't. You're probably reading this because you've asked what VPN service to use, and this is the answer.
Note: The content in this post does not apply to using VPN for their intended purpose; that is, as a virtual private (internal) network. It only applies to using it as a glorified proxy, which is what every third-party "VPN provider" does.
- A Russian translation of this article can be found here, contributed by Timur Demin.
- A Turkish translation can be found here, contributed by agyild.
- There's also this article about VPN services, which is honestly better written (and has more cat pictures!) than my article.
function mapValues(obj, fn) { | |
return Object.keys(obj).reduce((result, key) => { | |
result[key] = fn(obj[key], key); | |
return result; | |
}, {}); | |
} | |
function pick(obj, fn) { | |
return Object.keys(obj).reduce((result, key) => { | |
if (fn(obj[key])) { |
# For http://stackoverflow.com/a/7296873/396458 | |
student: student_id, first_name, last_name | |
classes: class_id, name, teacher_id | |
student_classes: class_id, student_id # the junction table | |
students: | |
id | first | last | |
===================== | |
1 | John | Lee |
# The MIT License (MIT) | |
# Copyright (c) 2016 Vladimir Ignatev | |
# | |
# Permission is hereby granted, free of charge, to any person obtaining | |
# a copy of this software and associated documentation files (the "Software"), | |
# to deal in the Software without restriction, including without limitation | |
# the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
# and/or sell copies of the Software, and to permit persons to whom the Software | |
# is furnished to do so, subject to the following conditions: | |
# |