一般语言的字符集比如GBK,UTF-8等,包含的特殊字符集是和标准的ASCII码一致的。 但有一些特殊语言的字符集,比如土耳其语,对应的特殊字符集就跟我们的不一样,它的A不是了,也不是67了,用toUpperCase()就不行了,需要用toLocalUpperCase(),一般情况下使用效果是一样的。
JavaScript provides several built-in methods for manipulating strings, including one called toUpperCase() which can be used to convert the first letter of a string to uppercase.
toUpperCase() Method toLowerCase() MethodIn an earlier article, we looked at different ways to capitalize the first letter of a string to uppercase in JavaScript. In this article, you'll learn how to uppercase or lowercase a string using JavaScript. JavaScript provides two built-in functions...
一般语言的字符集比如GBK,UTF-8等,包含的特殊字符集是和标准的ASCII码一致的。 但有一些特殊语言的字符集,比如土耳其语,对应的特殊字符集就跟我们的不一样,它的A不是65了,a也不是67了,用toUpperCase()就不行了,需要用toLocalUpperCase(),一般情况下使用效果是一样的。 喜欢的点个赞 吧!
2,toLowerCase() 方法用于把字符串转换为小写。 一个新的字符串,在其中 stringObject 的所有大写字符全部被转换为了小写字符。 语法为: stringObject.toLowerCase() 在本例中,"Hello world!" 将以大写字母来显示: varstr="Hello World!"document.write(str.toUpperCase()) 效果如下; 相关方法举例如下: var...
In JavaScript, you can use theArray.map()method to iterate over all elements and then use the string methods to change the case of the elements. Here is an example that demonstrates how to use theString.toUpperCase()method along withArray.map()to uppercase all elements in an array: ...
JavaScript 技术篇-js字符串大小写转换,toLocalUpperCase()和toUpperCase()的区别详解,正常大小写转换原理都是改变对应的ASCII码的值来实现的,比如十进制A对应65,a对应97,把a转化为A只要把97改为65就好了。一般语言的字符集比如GBK,UTF-8等
To convert a string to uppercase, we can use the built-in method in JavaScript. Here is an example that converts a string to uppercase…
So you have a form where you want to only accept UPPER CASE text in certain input or textarea fields. There are a number of ways to tackle this ranging from JavaScript to HTML5 patterns, CSS, and server-side code. Some are really annoying....
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