JS Bookmarklet——脚本无法在某些网站上运行

发布于 2024-12-22 13:19:11 字数 524 浏览 0 评论 0原文

我正在创建一个小书签，它在某些网站上运行良好，但在其他网站上则完全不起作用。当失败时，脚本仍然添加到底部...但只有部分 javascript 运行。

我假设存在 javascript 冲突...有什么想法吗？我注意到我在已经有 jQuery 的网站上工作最少。

代码如下。谢谢！

if (!($ = window.jQuery)) {
    alert('no jquery! its being added');
    script = document.createElement( 'script' );
    script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js';
    script.onload=runEverything;
    document.body.appendChild(script);
} else {
    alert('jquery exists!');
    runEverything();
}

原文

I'm creating a bookmarklet that works great on some sites, but not at all on others. When it fails, the script is still added to the bottom... but only part of the javascript runs.

I'm assuming there are javascript conflicts... thoughts? I've noticed that I works least on sites that already have jQuery.

The code is below. Thanks!

if (!($ = window.jQuery)) {
    alert('no jquery! its being added');
    script = document.createElement( 'script' );
    script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js';
    script.onload=runEverything;
    document.body.appendChild(script);
} else {
    alert('jquery exists!');
    runEverything();
}

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攀登最高峰 2024-12-29 13:19:11

这应该有效。

if (!($ == window.jQuery)) {
    alert('no jquery! its being added');
    script = document.createElement( 'script' );
    script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js';
    script.onload=runEverything;
    document.body.appendChild(script);
} else {
    alert('jquery exists!');
    runEverything();
}

虽然我推荐这个；

if (typeof jQuery == 'undefined') {
    alert('no jquery! its being added');
    script = document.createElement( 'script' );
    script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js';
    script.onload=runEverything;
    document.body.appendChild(script);
} else {
    alert('jquery exists!');
    runEverything();
}

This should work.

if (!($ == window.jQuery)) {
    alert('no jquery! its being added');
    script = document.createElement( 'script' );
    script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js';
    script.onload=runEverything;
    document.body.appendChild(script);
} else {
    alert('jquery exists!');
    runEverything();
}

Althought I recommend this;

if (typeof jQuery == 'undefined') {
    alert('no jquery! its being added');
    script = document.createElement( 'script' );
    script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js';
    script.onload=runEverything;
    document.body.appendChild(script);
} else {
    alert('jquery exists!');
    runEverything();
}

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