MDB is unlike most debuggers you've experienced.
It is not a source level debugger like gdb or lldb or even Node's builtin debugger
Generally used for postmortem analysis.
Postmortem is for Production and Development
We operate mostly on core files, though you can attach to running processes as well.
1、ReactElement vs ReactComponent
ReactElement就是虚拟DOM，是React中的基本类型, 它是一个轻量的、无状态的、不可变的，对一个DOM Element的虚拟代表。它包含type，props，key和ref四个属性。它没有方法，在原型上也没有其它东西。
通过React.creatElement来创建ReactElement对象 var root = React.createElement('div);
创建了ReactElement对象之后，就可以通过React.render和一个常规的DOM元素(HTMLElement或者SVGElement)。 注意不要把ReactElment和DOM Element搞混。
| // This script will make placeholder text visiable in all browsers | |
| // --------------------------------------------------------------- | |
| $('[placeholder]').focus(function() { | |
| var input = $(this); | |
| if (input.val() == input.attr('placeholder')) { | |
| input.val(''); | |
| input.removeClass('placeholder'); | |
| } | |
| }).blur(function() { |
| var loop = loop || {}; | |
| loop.shared = loop.shared || {}; | |
| loop.shared.actions = (function() { | |
| "use strict"; | |
| // Actions are events that are triggered by the user, e.g. clicking a button, | |
| // or by an async event, e.g. status received. | |
| // They should be dispatched to stores via the dispatcher. | |
| function Action(name, schema, values) { |
| // Avoid `console` errors in browsers that lack a console. | |
| (function() { | |
| var method; | |
| var noop = function () {}; | |
| var methods = [ | |
| 'assert', 'clear', 'count', 'debug', 'dir', 'dirxml', 'error', | |
| 'exception', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log', | |
| 'markTimeline', 'profile', 'profileEnd', 'table', 'time', 'timeEnd', | |
| 'timeline', 'timelineEnd', 'timeStamp', 'trace', 'warn' | |
| ]; |
A curated list by Eric Elliott and friends. Suggest links in the comments below.
This is a very exclusive collection of only must-have JavaScript links. I'm only listing my favorite links. Nothing else makes the cut. Feel free to suggest links if you think they're good enough to make this list. The really curious should feel free to browse the comments to find other links. I can't guarantee the quality of links in the comments.
Some of these links are affiliate links, meaning that if you make a purchase, I might earn a little money. This has absolutely no bearing on whether or not links make the list. None, whatsoever. However, it does allow me more resources to fight poverty with code. Every little bit counts.
| # Hello, and welcome to makefile basics. | |
| # | |
| # You will learn why `make` is so great, and why, despite its "weird" syntax, | |
| # it is actually a highly expressive, efficient, and powerful way to build | |
| # programs. | |
| # | |
| # Once you're done here, go to | |
| # http://www.gnu.org/software/make/manual/make.html | |
| # to learn SOOOO much more. |
| var SimpleTabView = Widget.extend({ | |
| attrs: { | |
| triggers: { | |
| value: '#pz-trip-ul span', | |
| getter: function(val){ | |
| return this.$(val); | |
| } | |
| }, | |
| panels: { | |
| value: '#pz-content > div', |