html5boilerplate | 易学教程

AngularJS in HEAD vs BODY

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问题 In all of the AngularJS examples, the Angular library is placed in the HEAD tags of the document. I have an existing project that has been built upon the HTML5 Boilerplate layout. This defines that JS libraries should be placed at the very bottom of the DOM before the </BODY> tag. Does AngularJS need to be placed in the HEAD? 回答1: AngularJS does not need to be placed in the HEAD, and actually you normally shouldn't, since this would block loading the HTML. However, when you load AngularJS at

JavaScript on the bottom of the page?

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问题 I\'ve read that it is better to keep all of your JavaScript files on the bottom of the webpage. The HTML5 Boilerplate template seems to agree: http://html5boilerplate.com/ And seems to be widely used. My question is: first, does this have any real basis? I\'ve done testing in Firebug and it seems to have some small effect, but is it trivial? Images and other sources don\'t seem to start loading until CSS files and script files have loaded, but sticking them on the bottom doesn\'t seem to make

What is the purpose of the HTML “no-js” class?

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问题 I notice that in a lot of template engines, in the HTML5 Boilerplate, in various frameworks and in plain php sites there is the no-js class added onto the <HTML> tag. Why is this done? Is there some sort of default browser behavior that reacts to this class? Why include it always? Does that not render the class itself obsolete, if there is no no-\"no-js\" case and html can be addressed directly? Here is an example from the HTML5 Boilerplate index.html: <!--[if lt IE 7 ]> <html lang=\"en\"