First knowledge of JavaScript

The first time you touch JavaScript is when you look at tutorials on the web, and you see the content of DOM operations. At first it was a mistake to assume that JavaScript was a subset of Java. Because there is no deep understanding of JavaScript, there is no way to delve into the relationship between JavaScript and Java. It was not until recently that my view was completely wrong. JavaScript and Java are two completely different languages.

The following are derived from the network:

1 first of all, these two guys don't have any blood ties, Java was introduced by Sun Company in May 1995, 2 and JavaScript was designed and implemented by Netscape Company in 1995, 3 because Netscape company and Sun Company, Netscape High-level hope it looks like Java, 4 Therefore, it is named JavaScript.  5  6 Second, the nature of these two guys is different,  7Java is an object-oriented programming language that can compose cross-platform application software, 8 even if the development of a simple program, you must design objects; 9 and JavaScript is a literal-translation scripting language,  It itself provides a very rich interior object for designers to use.

What they have in common and different points:

1 Same point:2 their grammar and C language are very similar;3 they are object-oriented (although the way they are implemented is slightly different);4 JavaScript references Java's naming conventions at design time;5 6 different points:7 JavaScript is a dynamic type language, while Java is a static type language;8 JavaScript is a weak type, Java is strongly typed;9 JavaScript's object-oriented is a prototype-based (prototype-based) implementation,Ten Java is class-based (class-based); One JavaScript is a far cry from the way Java is compared.  A JavaScript refers to objects that are not included in Java at design time, - and it includes languages like self and Scheme.  -  the Shitenro - Links: http://www.zhihu.com/question/19913979/answer/13336117 - Source: Know -Copyright belongs to the author, please contact the author for authorization.

After some exploration, we have a certain understanding of JavaScript. I also hope that other people who have just come into contact with JavaScript will not commit the same mistakes as me.

The end.

by Little

First knowledge of JavaScript