1.serialize方法:
serialize: function() { return jQuery.param(this.serializeArray()); },
2.serialize就是对serializeArray方法取的数组进行param操作:
param: function( a ) { var s = [ ]; function add( key, value ){ s[ s.length ] = encodeURIComponent(key) + '=' + encodeURIComponent(value); }; // If an array was passed in, assume that it is an array // of form elements if ( jQuery.isArray(a) || a.jquery ) // Serialize the form elements jQuery.each( a, function(){ add( this.name, this.value ); }); // Otherwise, assume that it's an object of key/value pairs else // Serialize the key/values for ( var j in a ) // If the value is an array then the key names need to be repeated if ( jQuery.isArray(a[j]) ) jQuery.each( a[j], function(){ add( j, this ); }); else add( j, jQuery.isFunction(a[j]) ? a[j]() : a[j] ); // Return the resulting serialization return s.join("&").replace(/%20/g, "+"); }
为什么要替换下呢,为什么要替换成加号呢?return s.join("&").replace(/%20/g, "+");