function foo(bar) { bar = bar || 'default'; }. (Alternatively, if you only ever use bar once, you can just replace that usage with bar ... ... <看更多>

In JavaScript, a parameter has a default value of undefined. It means that if you don't pass the arguments into the function, its parameters will have the ... ... <看更多>

jQuery.fn.dataDefault = function( name, fallback ) {. return this.data(name) || jQuery.data( this[0], name, jQuery.isFunction(fallback) ? fallback() ... ... <看更多>

Use the following code: <script type="text/javascript"> function SetPickerValue(pickerid, key, dispval) { var xml = '<Entities Append="False" Error="" ... ... <看更多>

If no data-placeholder value is present, it will default to "Select an Option" or "Select Some Options" depending on whether the select is single or ... ... <看更多>