10 course recommendations for JavaScript review

BOM model browser object model (browser object model), the browser itself can be operated through some objects built into the browser. DOM is used to operate the page, and BOM is used to operate the browser itself. There is no specification for BOM, but most browsers support the following objects 1. Window object: represents the entire window (1) open method: (name, characteristics, height and width, toolbar, scroll bar) (2) setTimeout method ：setTimeout(fn, milliseconds); //The first parameter must be a function name (no brackets allowed)

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1. Xiaoqiang’s HTML5 mobile development road (32) - JavaScript review 7

Introduction: BOM model browser object model (browser object model), the browser itself can be operated through some objects built into the browser.

2. Xiaoqiang’s HTML5 mobile development road (31) - JavaScript review 6

Introduction: HTML DOM model: Before the emergence of w3c dom model (standard), each browser supported some dom operations

3. Xiaoqiang’s HTML5 mobile development road (30) - JavaScript review 5

##Introduction: The first way: Find var obj based on id = document.getElementById(id); //document is an instance of HTMLDocument

4. Xiaoqiang’s HTML5 mobile development road ( 29)——JavaScript Review 4

##Introduction: In the first stage, the js engine () first scans the entire javascript code. When encountering <script>, a global active object will be created first, and the declaration of variables and function definitions appearing in <script> will be saved in the active object. If a function is encountered, a corresponding local active object is created, and the declaration of variables inside the function and the definition of the function are saved in the active object. <p><span style="line-height: 1.76em;">5. <p> Xiaoqiang’s HTML5 mobile development road (28) - JavaScript review 3<span style="line-height: 1.76em;"><a href="http://www.php.cn/div-tutorial-350642.html" target="_blank"><p> <span style="line-height: 1.76em;"><img src="/static/imghwm/default1.png" data-src="https://img.php.cn/upload/article/000/000/194/a49ba56a3de8b0bd046b5d0db8da059b.png?x-oss-process=image/resize,p_40" class="lazy" style="max-width:90%"/ alt="10 course recommendations for JavaScript review" >Introduction: Basic data type number: numeric type string: string (note that s is lowercase: string is the basic type) boolean: Boolean type //The first three have corresponding packaging classes null: Empty type undefined: Undefined type Test 1: <p><span style="line-height: 1.76em;">6. <p> Xiaoqiang’s HTML5 mobile development road (27) - JavaScript review 2<span style="line-height: 1.76em;"><a href="http://www.php.cn/div-tutorial-350640.html" target="_blank"> <p><span style="line-height: 1.76em;"><img src="/static/imghwm/default1.png" data-src="https://img.php.cn/upload/article/000/000/194/750485dbb4b011abc97680cf6a739e81.jpg?x-oss-process=image/resize,p_40" class="lazy" style="max-width:90%"/ alt="10 course recommendations for JavaScript review" >Introduction: 1. How to define a class and use the following syntax to create a class<p><span style="line-height: 1.76em;">7. <p> Xiaoqiang’s HTML5 mobile development road (26) - JavaScript review 1<span style="line-height: 1.76em;"><a href="http://www.php.cn/div-tutorial-350638.html" target="_blank"><p><span style="line-height: 1.76em;"><img src="/static/imghwm/default1.png" data-src="https://img.php.cn/upload/article/000/000/194/3e5c24764f6d92048fec4efdb6ed3e81.png?x-oss-process=image/resize,p_40" class="lazy" style="max-width:90%"/ alt="10 course recommendations for JavaScript review" > ##Introduction: I haven’t used JavaScript for a long time, and it feels a bit unfamiliar. Recently, I was reading information about HTML5 mobile development, and an intuition told me that JavaScript was very important yesterday and today, and it will be even more important tomorrow. Nowadays, many JavaScript-based frameworks have brought great convenience to our development, but to use these tools better, we must have a higher understanding of JavaScript, open the previous notes, and start reviewing. <p><p><span style="line-height: 1.76em;">8. <a href="http://www.php.cn/mysql-tutorials-116964.html" target="_blank">JavaScript Review (2)<p><span style="line-height: 1.76em;"> Introduction: Javascript object-oriented basic knowledge 1. How to define a class and create it using the following syntax A class function Person(name,age){ //It is customary to capitalize the first letter //The variable modified by this is called the attribute this .name=name; this .age=age; //If the attribute is a function, then this The attribute is a method this .play= func<p><strong>[Related Q&A recommendations]: </script>

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