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jquery convert to uppercase

王林
王林Original
2023-05-12 11:58:37631browse

jQuery Convert to Uppercase

jQuery is a popular JavaScript library used to simplify JavaScript programming and HTML document traversal and manipulation. When writing code, sometimes you need to convert jQuery code to uppercase for easier reading and understanding.

Before converting jQuery to uppercase, we need to understand some basic jQuery syntax and common functions. Here are some common jQuery functions and usage:

  1. $(selector): Selector is used to select HTML elements.
  2. $(selector).action(): The action() function is used to perform operations on elements.
  3. $(document).ready(function() {}): Function used to ensure that the code is executed after the page is loaded.
  4. .css(): used to set or return the style attributes of elements.
  5. .text(): used to set or return the text content of the element.
  6. .html(): used to set or return the HTML content of an element.

Here's how to convert jQuery code to uppercase:

  1. If you are using JQuery 3.0 or later, you can add the following code before the body tag , convert all jQuery functions to uppercase: 
<script>
    // 将所有 jQuery 函数转换为大写
    jQuery.fn.extend({
        css: jQuery.fn.CSS,
        text: jQuery.fn.TEXT,
        html: jQuery.fn.HTML
    });
</script>
  1. If you are using an older version of jQuery, you can use the following code to convert all jQuery functions to uppercase: 
<script>
    // 将 jQuery 函数转换为大写
    jQuery.fn.CSS = jQuery.fn.css;
    jQuery.fn.TEXT = jQuery.fn.text;
    jQuery.fn.HTML = jQuery.fn.html;
</script>

Through these methods, we can convert jQuery code to uppercase. For example: 

<!DOCTYPE html>
<html>
<head>
    <title>jQuery 转为大写</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script>
        // 将所有 jQuery 函数转换为大写
        jQuery.fn.extend({
            css: jQuery.fn.CSS,
            text: jQuery.fn.TEXT,
            html: jQuery.fn.HTML
        });

        $(document).ready(function() {
            $("button").click(function() {
                $("p").css("color", "red").text("Hello World").html("<b>Hello World</b>");
            });
        });
    </script>
</head>
<body>

<button>点击我</button>
<p>这是一个段落。</p>

</body>
</html>

In this example, we use jQuery’s css(), text(), and html() functions to set the element’s style, text content, and HTML content. By converting jQuery functions to uppercase, you make your code easier to read and understand.

Summary:

Converting jQuery code to uppercase is a way to optimize your code. Although this is not required, it can improve the readability and maintainability of your code. When writing code, try to use concise and clear syntax, and easy-to-understand function and variable names. This makes the code easier to maintain and helps others understand your code more easily.

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