Javascript/JQuery事件参数.我不明白这个"e"论点是什么 [英] Javascript/JQuery event arguments. I don't understand what this 'e' argument is or does

问题描述

jQuery:

this.saveButton.click(function (e) {
    scope.saveForm();
});

这是一条非常简单的JQuery行，它将.click()事件绑定到saveButton对象，并在事件触发时调用saveForm函数.

This is a very simple line of JQuery that binds the .click() event to the saveButton object and calls a saveForm function when the event is fired.

调用此事件时，"e"是什么?我认为它从未使用过.

When this event is called, what is 'e'? I don't think it is ever used.

推荐答案

e可用于获取有关单击的特定信息(左，右或中心；单击的坐标；单击的DOM对象)，但是该特定信息代码示例不使用它.

The e can be used to obtain specific information about the click (left, right or center; coordinates clicked; DOM object clicked on), but this specific code sample doesn't use it.

请参见 http://api.jquery.com/category/events/event- object/了解可用内容的详细信息.

See http://api.jquery.com/category/events/event-object/ for details about what's available.

这篇关于Javascript/JQuery事件参数.我不明白这个"e"论点是什么的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！