我有一个字段在您键入时“纠正”自己.我们编写了一些代码,当按下箭头键时会阻止此功能：
handleKeyUp: function(e) {
var arrowKeys = _.range(37,41),key = e.which;
// allow user to move cursor by keyboard
if ($.inArray(key,arrowKeys) < 0) {
this.removeInvalidCharacters();
}
},
我们想为此写一个单元测试;但是,我们无法弄清楚如何通过$input.trigger(‘keyup’)传递e.which.我知道触发器的第二个参数允许我们发送“额外选项”;但是,这只会将值传递给handleKeyUp函数.想法？
解决方法
试试这个 –
var e = $.Event("keyup");
e.which = 37;
$input.trigger(e);
http://api.jquery.com/category/events/event-object/
As of jQuery 1.6,you can also pass an object to jQuery.Event() and
its properties will be set on the newly created Event object.
// Create a new jQuery.Event object with specified event properties.
var e = jQuery.Event("keydown",{ keyCode: 64 });
// trigger an artificial keydown event with keyCode 64
jQuery("body").trigger( e );
