使用 javascript/jquery 模拟单击“ a”元素

Using jQuery:

$('#gift-close').click();

Using jQuery: $('#gift-close').trigger('click');

Using JavaScript: document.getElementById('gift-close').click();

Use this code to click:

$("#gift-close").click();

The code you've already tried:

document.getElementById("gift-close").click();

...should work as long as the element actually exists in the DOM at the time you run it. Some possible ways to ensure that include:

1. Run your code from an onload handler for the window. http://jsfiddle.net/LKNYg/
2. Run your code from a document ready handler if you're using jQuery. http://jsfiddle.net/LKNYg/1/
3. Put the code in a script block that is after the element in the source html.

So:

$(document).ready(function() {
document.getElementById("gift-close").click();
// OR
$("#gift-close")[0].click();
});

Here, try this one:

$('#gift-close').on('click', function () {
_gaq.push(['_trackEvent','voucher_new','cart',$(this).attr('rel')+'-mask_x_button-inaction']);
});

Try to use document.createEvent described here https://developer.mozilla.org/en-US/docs/Web/API/document.createEvent

The code for function that simulates click should look something like this:

function simulateClick() {
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", true, true, window,
0, 0, 0, 0, 0, false, false, false, false, 0, null);
var a = document.getElementById("gift-close");
a.dispatchEvent(evt);
}

Code snippet underneath!

Please take a look at these documentations and examples at MDN, and you will find your answer. This is the propper way to do it I would say.

Creating and triggering events

Dispatch Event (example)

Taken from the 'Dispatch Event (example)'-HTML-link (simulate click):

function simulateClick() {


var evt = document.createEvent("MouseEvents");


evt.initMouseEvent("click", true, true, window,
0, 0, 0, 0, 0, false, false, false, false, 0, null);


var cb = document.getElementById("checkbox");
var canceled = !cb.dispatchEvent(evt);


if(canceled) {
// A handler called preventDefault
alert("canceled");
} else {
// None of the handlers called preventDefault
alert("not canceled");
}
}

This is how I would do it (2017 ..) :

Simply using MouseEvent.

function simulateClick() {


var evt = new MouseEvent("click");


var cb = document.getElementById("checkbox");
var canceled = !cb.dispatchEvent(evt);


if (canceled) {
// A handler called preventDefault
console.log("canceled");
} else {
// None of the handlers called preventDefault
console.log("not canceled");
}
}

document.getElementById("button").onclick = evt => {
    

simulateClick()
}


function simulateClick() {


var evt = new MouseEvent("click");


var cb = document.getElementById("checkbox");
var canceled = !cb.dispatchEvent(evt);


if (canceled) {
// A handler called preventDefault
console.log("canceled");
} else {
// None of the handlers called preventDefault
console.log("not canceled");
}
}

<input type="checkbox" id="checkbox">
<br>
<br>
<button id="button">Check it out, or not</button>

Try adding a function inside the click() method.

$('#gift-close').click(function(){
//do something here
});

It worked for me with a function assigned inside the click() method rather than keeping it empty.