touppercase
字符串toUpperCase()方法 (String toUpperCase() Method)
toUpperCase() Method is a string method in JavaScript, it is used to converts all alphabets in uppercase and returns the new string with uppercase alphabets.
toUpperCase()方法是JavaScript中的字符串方法，用于转换所有大写字母并返回带有大写字母的新字符串。
Syntax:
句法：
new_string = str.toUpperCase();
Here,
这里，
str is the main string to be converted.
str是要转换的主字符串。
new_string is the returned new string with all alphabets in uppercase.
new_string是返回的新字符串，所有字母均大写。
Examples:
例子：
Input: "Hello World!"
Output: "HELLO WORLD!"
Input: "[email protected]"
Output: "[email protected]"
Code:
码：
<html>
<head>
<title>JavaScipt Example</title>
</head>
<body>
<script>
var main_str = "Hello World!";
var new_str = main_str.toUpperCase();
document.write("main_str = " + main_str + "<br>");
document.write("new_str = " + new_str + "<br>");
main_str = "[email protected]";
new_str = main_str.toUpperCase();
document.write("main_str = " + main_str + "<br>");
document.write("new_str = " + new_str + "<br>");
</script>
</body>
</html>
Output
输出量
main_str = Hello World!
new_str = HELLO WORLD!
main_str = [email protected]
new_str = [email protected]
翻译自: https://www.includehelp.com/code-snippets/string-toUpperCase-method-with-example-in-javascript.aspx
touppercase
