* Set or get an attribute or an object of attributes. Can't use jQuery attr because * it attempts to set expando properties on the SVG element, which

* Set CSS on a given element * @param {Object} el * @param {Object} styles Style object with camel case property names

* Displays an alert. * @param {String} str String to display.

* execute ending functions

字典表转换 @param obj

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* Utility function to create element with attributes and styles * @param {Object} tag * @param {Object} attribs * @param {Object} styles * @param

* Wrap a method with extended functionality, preserving the original function * @param {Object} obj The context object that the method belongs to *

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