Fritz Lekschas flekschas

New ES6 Constructor Semantics and Usage Examples

Manual super: Alternative Design where subclass constructors do not automatically call superclass constructors

This Gist presents a new design of class-based object construction in ES6 that does not require use of the two-phase @@create protocol.

One of the characteristics of this proposal is that subclass constructors must explicitly super invoke their superclass's constructor if they wish to use the base class' object allocation and initialization logic.

An alternative version of this design automatically invokes the base constructor in most situations.

Deploying a subfolder to GitHub Pages

Sometimes you want to have a subdirectory on the master branch be the root directory of a repository’s gh-pages branch. This is useful for things like sites developed with Yeoman, or if you have a Jekyll site contained in the master branch alongside the rest of your code.

For the sake of this example, let’s pretend the subfolder containing your site is named dist.

Step 1

Remove the dist directory from the project’s .gitignore file (it’s ignored by default by Yeoman).

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

	//
	// SVG — hasClass, addClass, removeClass, toggleClass
	// Source:
	// https://gist.github.com/branneman/8436956
	// Taken and adapted from:
	// http://toddmotto.com/hacking-svg-traversing-with-ease-addclass-removeclass-toggleclass-functions/
	//

	if (SVGElement && SVGElement.prototype) {

	cd repository
	git checkout --orphan orphan_name
	git rm -rf .
	rm '.gitignore'
	echo "#Title of Readme" > README.md
	git add README.md
	git commit -a -m "Initial Commit"
	git push origin orphan_name

	function worker() {
	setInterval(function() {
	postMessage({foo: "bar"});
	}, 1000);
	}

	var code = worker.toString();
	code = code.substring(code.indexOf("{")+1, code.lastIndexOf("}"));

	var blob = new Blob([code], {type: "application/javascript"});

	// requires raf.js (polyfil)

	(function(){
	var ids = {};

	function requestId(){
	var id;
	do {
	id = Math.floor(Math.random() * 1E9);
	} while (id in ids);

	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

	//http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
	Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);