- C-a == Ctrl-a
- M-a == Alt-a
:q close
:w write/saves
:wa[!] write/save all windows [force]
:wq write/save and close
#!/bin/sh | |
# check for where the latest version of IDEA is installed | |
IDEA=`ls -1d /Applications/IntelliJ\ * | tail -n1` | |
wd=`pwd` | |
# were we given a directory? | |
if [ -d "$1" ]; then | |
# echo "checking for things in the working dir given" | |
wd=`ls -1d "$1" | head -n1` |
git branch -m old_branch new_branch # Rename branch locally | |
git push origin :old_branch # Delete the old branch | |
git push --set-upstream origin new_branch # Push the new branch, set local branch to track the new remote |
git config --global alias.tree "log --graph --decorate --pretty=oneline --abbrev-commit" |
// === Arrays | |
var [a, b] = [1, 2]; | |
console.log(a, b); | |
//=> 1 2 | |
// Use from functions, only select from pattern | |
var foo = () => [1, 2, 3]; |
Patch mode allows you to stage parts of a changed file, instead of the entire file. This allows you to make concise, well-crafted commits that make for an easier to read history. This feature can improve the quality of the commits. It also makes it easy to remove parts of the changes in a file that were only there for debugging purposes - prior to the commit without having to go back to the editor.
It allows you to see the changes (delta) to the code that you are trying to add, and lets you add them (or not) separately from each other using an interactive prompt. Here's how to use it:
from the command line, either use
A minimal HTTP server in python. It sends a JSON Hello World for GET requests, and echoes back JSON for POST requests.
python server.py 8009
Starting httpd on port 8009...
curl http://localhost:8009
{"received": "ok", "hello": "world"}
You don't really need a framework or fancy cutting-edge JavaScript features to do two-way data binding. Let's start basic - first and foremost, you need a way to tell when data changes. Traditionally, this is done via an Observer pattern, but a full-blown implementation of that is a little clunky for nice, lightweight JavaScript. So, if native getters/setters are out, the only mechanism we have are accessors:
var n = 5;
function getN() { return n; }
function setN(newN) { n = newN; }
console.log(getN()); // 5
setN(10);
Below is the list of modern JS frameworks and almost frameworks – React, Vue, Angular, Ember and others.
All files were downloaded from https://cdnjs.com and named accordingly.
Output from ls
command is stripped out (irrelevant stuff)
$ ls -lhS
566K Jan 4 22:03 angular2.min.js
/** | |
* @param {object} scope - Object that all bound data will be attached to. | |
*/ | |
function twoWayBind(scope) { | |
// a list of all bindings used in the DOM | |
// @example | |
// { 'person.name': [<input type="text" data-bind="person.name"/>] } | |
var bindings = {}; | |
// each bindings old value to be compared for changes |