parent scope

Less as a form of CSS extension, it does not castrate the functionality of the CSS, but in the existing CSS syntax, add a lot of extra features, so learning to not is a very easy thing.VariableNote that the variable in less is a full ' constant ',

Scope:Scope Chain:Child scopes can access the variables and methods of the parent scope. The parent set has no access to the variables and methods of the subset scopeVariable declaration elevation:JS execution will be divided into two stages: (JS

http://ionicframework.com/blog/angularjs-console/1:access ScopesWe can access any scope (even isolated ones!) on the page with a simple JS one-liner:> Angular. Element (targetnode). Scope () -> childscope { $id Span class= "O" >: "005" this:

First, SetTimeoutSettimtout (function() { alert (2); // },0); alert (1); // pop up firstFor the above code, the inclusion principle is as follows:1, first JSVM will only execute a thread;2,

The knowledge of the context and scope mentioned earlier, in addition to understanding this knowledge, is the basis for understanding closures.As for the concept of "closure" the word description, really bad explanation, I have seen many times, but

Let's first explain what "free variables" are.The variable x used in a scope is not declared in a scope (that is, declared in other scopes), and for a scope, X is a free variable. Such asAs in the previous program, when the FN () function is called,

Intuitively it is assumed that JavaScript code executes from the top to the next line, but in practice it is not entirely true.Console.log (a); // ReferenceerrorA = 2; var A;console.log (a); // 2Console.log (a); // undefined var a = 2;The correct

Chapter Catalogue: JS basic knowledge (above)--explain the JS basic grammar-related questions, analysis principles and solutions. This chapter explains the first part of the basics: types and calculations of variables. And JS "Three

V-for= "Item in Items"//array update detection//object Change detection considerations//Display Filter/Sort results//v-for of a range of values//V-for Array: We use the v-for instruction to render based on a list of options for a set of arrays.

Less precompilation is backwards compatible with CSS and extends functionality for the current CSS.Less official website is the best Learning Resource.This article is a overview for less, only as a preliminary understanding. Because the official

The examples in this article describe how ANGULARJS creates custom directives. Share to everyone for your reference, specific as follows: This is a translation from the instructions of the angular developer. Mainly for developers who are already

What are functions (function)function sum (a,b) {return a+b;}In fact, the popular saying is a name of the Code section, convenient reuse.To be aware of:1.Javascript function syntax, because Javascript itself is case-sensitive, so a function cannot

Multi-level Linkage menu is a common front-end component, such as province-city linkage, university-college-professional linkage and so on. Although the scenario is common, it is not necessarily as simple as it seems to be to implement a generic,

1. The difference between ng-show/ng-hide and ng-if. We all know that ng-show/ng-hide is actually hidden and displayed through display. The NG-IF actually controls the addition and deletion of the DOM node to implement it. So if we are loading the

When we're writing angularjs apps, it's a challenging task to get the data and services that are hidden in applications through the JavaScript console of Chrome, Firefox, and IE. Here are some simple tips to help us use the Javascript console to

First, the beginning Angular JS is a set of frames, templates, and data binding and rich UI components that are used to develop Web pages. It provides a schema for Web applications without the need for manual DOM operations. Angularjs is very small,

The above article has outlined the specific aspects of the console object as well as the basic application, here is a brief description of how to use the Chrome console this artifact to properly debug the JavaScript code (this is what we can really

Programming paradigm The programming paradigm is a framework that consists of thinking about problems and realizing the vision of a problem. Many modern languages are clustering paradigms (or multiple paradigms): They support many different

The scope of the ANGULARJS has a very hierarchical and nested structure. They all have a major $rootscope (also say the corresponding angular application or ng-app), and all other scopes are inherited from this $rootscope, or nested under the main

In angular, controller is a JavaScript function (Type/class) that is used to extend angular scope except for root scope (http://www.jb51.net/article/ 91749.htm) is an example. When we or angular create a new child scope through the Scope. $new API