BOM introduction of BOM series

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1、 What is? BOM

BOM（Browser Object Model） Browser object model , It provides objects that interact with browser windows independently of content , Its core object is window.

BOM It consists of a series of related objects , And each object provides many methods and properties .

BOM Lack of standards ,JavaScript The standard organization of grammar is ECMA,DOM Our standardization organization is W3C,BOM Initially Netscape Part of the browser standard .

2、BOM The composition of the

BOM Than DOM Bigger , It contains DOM.

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