importjs1_column2.html
来自「Ajax tutorial archive」· HTML 代码 · 共 34 行
HTML
34 行
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>
Introduction to Ajax Tutorial
</title>
</head>
<body>
<p class="main">
Each of those script tags will use one connection and
considerably delay the loading of a page. Same thing goes for
CSS and also links tags. You should take a long hard think
about that when developing web pages.
</p>
<p class="main">
To circumvent this we can be clever and push JavaScript files
through the xmlhttprequest object and consequently have them
load asynchronously. We aren't going to get around using
at least one script tag, but if the originating script is
kept minimal then our load times are going to be reduced
significantly.
</p>
<p class="main">
In other words load only what is essential to get the web
page of to a start and then load the rest of the JavaScript
components dynamically or on demand. The same would apply to
CSS styles, use minimal styles to provide backward
compatibility and push the rest of the css through the
xnlhttprequest object.
</p>
</body>
</html>
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