Luke Jin nomospace

Getting Started with NPM (as a developer)

As easy as 1, 2, 3!

Updated:

Aug, 08, 2022 update config docs for npm 8+
Jul 27, 2021 add private scopes
Jul 22, 2021 add dist tags
Jun 20, 2021 update for --access=public
Sep 07, 2020 update docs for npm version

// ==ClosureCompiler==
// @compilation_level SIMPLE_OPTIMIZATIONS
// ==/ClosureCompiler==

function xx() {
function hello(name) {
  alert('Hello, ' + name);
}
eval('(hello("New user"))')

Learn JavaScript concepts with the Chrome DevTools

Authored by Peter Rybin , Chrome DevTools team

In this short guide we'll review some new Chrome DevTools features for "function scope" and "internal properties" by exploring some base JavaScript language concepts.

Closures

Let's start with closures – one of the most famous things in JS. A closure is a function, that uses variables from outside. See an example:

	/**
	* modified from http://gist.github.com/527683
	* only improve slightly to get small
	*/
	var ie = function(v, p, needle, undef) {

	needle = p.getElementsByTagName('br');

	while(
	p.innerHTML = '<!--[if gt IE ' + (++v) + ']><br><![endif]-->',

	/**********************************************/
	/*
	/* IR_Black Skin by Ben Truyman - 2011
	/*
	/* Based on Todd Werth's IR_Black:
	/* http://blog.toddwerth.com/entries/2
	/*
	/* Inspired by Darcy Clarke's blog post:
	/* http://darcyclarke.me/design/skin-your-chrome-inspector/
	/*

	/**
	* @ NAME: Cross-browser TextStorage
	* @ DESC: text storage solution for your pages
	* @ COPY: sofish, http://sofish.de
	*/
	typeof window.localStorage == 'undefined' && ~function () {

	var localStorage = window.localStorage = {},
	prefix = 'data-userdata',
	doc = document,

	var parser = document.createElement('a');
	parser.href = "http://example.com:3000/pathname/?search=test#hash";

	parser.protocol; // => "http:"
	parser.hostname; // => "example.com"
	parser.port; // => "3000"
	parser.pathname; // => "/pathname/"
	parser.search; // => "?search=test"
	parser.hash; // => "#hash"
	parser.host; // => "example.com:3000"

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	;(function($) {
	var MutationObserver = window.MutationObserver \|\| window.WebKitMutationObserver \|\| window.MozMutationObserver;

	function isDOMAttrModifiedSupported() {
	var p = document.createElement('p');
	var flag = false;

	if (p.addEventListener) p.addEventListener('DOMAttrModified', function() {
	flag = true
	}, false);