用angular实现$.param()

首先介绍一下$.param()

功能: 序列化对象或数组,返回字符串

eg:

var params = { width:1900, height:1200 };
var str = jQuery.param(params);
console.log(str);

输出: width=1680&height=1050

使用angular替代，方法为:

function serializeData( data ) {
    // If this is not an object, defer to native stringification.
    if ( ! angular.isObject( data ) ) {
        return( ( data == null ) ? "" : data.toString() );
    }
    var buffer = [];
    // Serialize each key in the object.
    for ( var name in data ) {
        if ( ! data.hasOwnProperty( name ) ) {
            continue;
        }
        var value = data[ name ];
        buffer.push(
            encodeURIComponent( name ) + "=" + encodeURIComponent( ( value == null ) ? "" : value )
        );
    }
    // Serialize the buffer and clean it up for transportation.
    var source = buffer.join( "&" ).replace( /%20/g, "+" );
    return( source );
};