我想从我的页面调用jquery插件函数,但是我失败了:(。我的代码是:
var pstps=$('#psteps_simple_horiz_layout').psteps({
steps_width_percentage: true,
alter_width_at_viewport: '1300',
steps_height_equalize: true
});
step_num=2;
pstps.go_to_step(step_num);
该插件是Pine Steps向导。它的代码是:
function($) {
$.fn.psteps = function(options) {
// Build main options before element iteration.
var opts = $.extend({}, $.fn.psteps.defaults, options);
// Iterate and transform each matched element.
var all_elements = this;
all_elements.each(function(){
var psteps = $(this);
psteps.psteps_version = "0.0.1alpha";
.......................................................
psteps.go_to_step = function(step_num){
var last_active_title = psteps.find('.step-title.last-active'),
.......................................................
};
.......................................................
this.pines_steps = psteps;
});
return all_elements;
};
当我运行我的代码时,我收到错误:
Uncaught TypeError: undefined is not a function
答案 0 :(得分:0)
在以下行失败,因为go_to_steps
不是jQuery扩展(并且psteps()
的返回值是原始jQuery对象:
pstps.go_to_step(step_num);
您需要实际插件的实例。查看插件代码,它将实例作为名为pines_steps
的DOM元素的属性进行连接,因此您需要将该属性作为类实例获取:
var pstps=$('#psteps_simple_horiz_layout').psteps({
steps_width_percentage: true,
alter_width_at_viewport: '1300',
steps_height_equalize: true
})[0].pines_steps;
然后你可以打电话
pstps.go_to_step(step_num);
常见模式:
编写插件的常用方法是在第一个参数中接受函数名称作为字符串,这样他们就可以调用这样的方法:
$('#psteps_simple_horiz_layout').psteps("go_to_step", step_num);
但是这个插件缺少执行该操作的代码