我正在使用名为classie.js的模块,其代码可以在下面查看:
/*!
* classie - class helper functions
* from bonzo https://github.com/ded/bonzo
*
* classie.has( elem, 'my-class' ) -> true/false
* classie.add( elem, 'my-new-class' )
* classie.remove( elem, 'my-unwanted-class' )
* classie.toggle( elem, 'my-class' )
*/
/*jshint browser: true, strict: true, undef: true */
/*global define: false */
( function( window ) {
'use strict';
// class helper functions from bonzo https://github.com/ded/bonzo
function classReg( className ) {
return new RegExp("(^|\\s+)" + className + "(\\s+|$)");
}
// classList support for class management
// altho to be fair, the api sucks because it won't accept multiple classes at once
var hasClass, addClass, removeClass;
if ( 'classList' in document.documentElement ) {
hasClass = function( elem, c ) {
return elem.classList.contains( c );
};
addClass = function( elem, c ) {
elem.classList.add( c );
};
removeClass = function( elem, c ) {
elem.classList.remove( c );
};
}
else {
hasClass = function( elem, c ) {
return classReg( c ).test( elem.className );
};
addClass = function( elem, c ) {
if ( !hasClass( elem, c ) ) {
elem.className = elem.className + ' ' + c;
}
};
removeClass = function( elem, c ) {
elem.className = elem.className.replace( classReg( c ), ' ' );
};
}
function toggleClass( elem, c ) {
var fn = hasClass( elem, c ) ? removeClass : addClass;
fn( elem, c );
}
var classie = {
// full names
hasClass: hasClass,
addClass: addClass,
removeClass: removeClass,
toggleClass: toggleClass,
// short names
has: hasClass,
add: addClass,
remove: removeClass,
toggle: toggleClass
};
//transport
if ( typeof define === 'function' && define.amd ) {
// AMD
define( classie );
} else {
//browser global
window.classie = classie;
}
})( window );
我用HTML写了这个:
<script data-main="js/main.js" src="bower_components/requirejs/require.js"></script>
<script src="js/classie.js"></script>
然后浏览器抱怨:
[Error] Error: Mismatched anonymous define() module: [object Object]
http://requirejs.org/docs/errors.html#mismatch
defaultOnError (require.js, line 141)
onError (require.js, line 545)
intakeDefines (require.js, line 1229)
(anonymous function) (require.js, line 1416)
对我来说,奇怪的是classie.js中的最后一行:
//transport
if ( typeof define === 'function' && define.amd ) {
// AMD
define( classie );
} else {
//browser global
window.classie = classie;
}
看起来classie.js
会尽力与AMD
保持兼容,因为它会在使用之前测试define
是否为函数且具有amd
属性。但遗憾的是,这导致浏览器出错。难道不是requirejs
最着名的实施AMD的图书馆吗?为什么它不起作用?
答案 0 :(得分:2)
正如您所发现的,classie旨在加载AMD加载程序。因此,当您加载它时,它会检测到AMD加载程序存在并调用define
。
问题是您尝试使用script
元素加载它。 AMD模块必须通过其加载器加载,而不是直接通过script
加载。这就是您收到错误消息的原因。
答案 1 :(得分:-1)
我刚刚评论过AMD支票,并以常规方式调用
/*
// transport
if ( typeof define === 'function' && define.amd ) {
// AMD
define( classie );
} else {
// browser global
window.classie = classie;
}
*/
window.classie = classie;