如何在非 jQuery 網站的瀏覽器 JavaScript 控制台中包含 jQuery？

Including jQuery in Browser JavaScript Console for Non-jQuery Websites

Including jQuery in a browser's JavaScript console can be useful for debugging or quickly accessing jQuery functions. This is particularly helpful on websites that do not use jQuery.

Method:

To include jQuery in the JavaScript console, simply run the following code:

<code class="javascript">let jq = document.createElement('script');
jq.src = "https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js";
document.getElementsByTagName('head')[0].appendChild(jq);
jQuery.noConflict();</code>

Explanation:

• The first line creates a new script element and sets its source as the jQuery library URL.
• The second line appends the script to the HTML head element.
• The third line includes jQuery into the console by calling the jQuery.noConflict() method. This ensures that any other JavaScript libraries on the page don't interfere with jQuery.

Additional Tips:

• If the website uses scripts that conflict with jQuery, you may encounter problems.
• To avoid the wait time for the script to load, you can modify the code as follows:

<code class="javascript">let jq = document.createElement('script');
jq.src = "https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js";
jq.onload = function() {
    jQuery.noConflict();
    console.log('jQuery injected');
};
document.getElementsByTagName('head')[0].appendChild(jq);</code>

• As an alternative, you can create a bookmark with the following code to inject jQuery with ease:

<code class="javascript">javascript: (function(e, s) {
    e.src = s;
    e.onload = function() {
        jQuery.noConflict();
        console.log('jQuery injected');
    };
    document.head.appendChild(e);
})(document.createElement('script'), '//code.jquery.com/jquery-latest.min.js')</code>

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