function, built-in parameters and jquery method parameters (also can be described as Object key value pairs)

1. An argument in an anonymous function is not allowed to be passed to the parameters in the jquery method.

Such as:

1 var function (key,value) {2     $ (' selector '). css ({3        key:value4     })5 }

2. A variable cannot change key in a key-value pair.

Such as:

1 var A; 2 $ (' Selecor '). css ({3    a:value4 })

Summarize:

The built-in parameters in the anonymous function key are not passed the key parameter in the JQuery method CSS (), and value is available.

In fact, the above two cases are the same, but can not change the key value of keys, can only change the value;

function, built-in parameters and jquery method parameters (also can be described as Object key value pairs)