javascript object prototype

most natural typeResult: an existing xpathresult to use for the results. Passing null causes a new xpathresult to be created.Here, _ PROTO _ can get the prototype object of the object under ff, that is, the prototype of the object. This is also the basis of the

1 What is prototype The prototype property of an object in JavaScript that returns a reference to the object type prototype. This is a rather awkward explanation, and to understand it, the concept of

+ ' work: ' +this.job '); at } - var p2=new Worker (' Mumu ', ' female ', ' student '); - p2.showname (); -P2.show ();Analyze the following example: Create a person function and create a show and showname function on the person's prototype objectThe worker function is created, the worker prototype object inherits the

, but the problem comes again, in the global scope to define a real just want to let the blog use the function, display to let the global scope some veritable, What's even more unacceptable is that many methods are defined in the global scope that are only used by specific objects, wasting space, and obviously losing object-oriented encapsulation, so you can solve this problem by prototyping.prototype ModeEach function we create has a

JavaScript is a dynamic language (Dynamic Language Dynamics Programming Language: Dynamic type language, meaning that the type of check is done at run time, that is, "weak type" language), there is no class concept, there are classes reserved words, But cannot be used as a variable namePrototype: Each object in JavaScript has an internal private connection pointi

use for the results. Passing null causes a new XPathResult to be created.Here, _ proto _ can get the prototype object of the object under FF, that is, the prototype of the object. This is also the basis of the javascript Inherita

javascript scope chain related to the prototype chain? From the principle analysis, do not say what I found online In my personal opinion, there is no contact.In general, the scope chain is for variables. For a large range in js, there are only two scopes: global scope and internal function scope, if function 2 is defined in function 1 (usually anonymous), a global scope of function 1 is available; the fea

problem again, in the global scope of the definition of a real only want to use the blog function, show that the global scope of some worthy, What is even more unacceptable is that many methods are defined in the global scope that are used only for specific objects, wasting space, and obviously losing object-oriented encapsulation, so you can solve this problem by prototyping. 　Prototype mode Each functi

This article mainly introduces a misunderstanding of the Javascript prototype chain and prototype. If you need it, you can refer to my previous questions about prototype inheritance and identifier search in the Javascript prototype