function capitalizeFirstLetter(string) { return string.charAt(0).toUpperCase() + string.slice(1); } console.log(capitalizeFirstLetter("js")); // 输出: "Js" 方法2:使用正则表达式 javascript function capitalizeFirstLetterWithRegex(string) { return string.replace(/(^\w{1})/, s => s....
javascript string capitalize letter 答案function capitalizeFirstLetter(string) { return string.charAt(0).toUpperCase() + string.slice(1); } 其他一些答案修改了String.prototype (这个答案也是如此),但由于可维护性,我现在建议不要这样做(很难找到函数添加到prototype ,如果其他代码使用相同的函数,可能会导致冲突...
例如: function capitalizeFirstLetter(str) { return str.charAt(0).toUpperCase() + str.slice(1).toLowerCase(); } var str = "hello world"; var capitalizedStr = capitalizeFirstLetter(str); console.log(capitalizedStr); // 输出 "Hello world"...
One of the most common operations with strings is to make the string capitalized: uppercase its first letter, and leave the rest of the string as-is.字符串最常见的操作之一是将字符串大写:将其首字母大写,将其余字符串保持原样。 The best way to do this is through a combination of two ...
JavaScript: Check if First Letter of a String is Upper Case, Capitalizing the First Letter If we found out that the first letter of the string is lower case, and if we want to capitalize it, we can do that using following method: function capitalizeFirstLetter(word) { return word.charAt...
在CSS中：p:first-letter { text-transform:capitalize;}下面是流行...
There is a number of ways to capitalize the first letter of the string in JavaScript. For example: "this is an example"->"This is an example" "the Atlantic Ocean"->"The Atlantic Ocean" ThetoUpperCase()method transforms all letters in a string to uppercase; we will use it in com...
This was an example on how to capitalize the first letter of a string. To run the project you need to run the below commands at the root of the project 1 2 > npminstall > npm start After this, point the browser to the following URL: ...
// To capitalize the first letter, use toUpperCase and slice methodsletcity ='paris';city = city[0].toUpperCase() + city.slice(1);console.log(city);// "Paris" 4.字符串数组分割 如果需要将字符串拆分为字符数组,可以使用扩展运算符 ... /...
function reverseString(str) { return str.split("").reverse().join(""); } 18. 将首字母大写 有时,你可能需要将字符串中的首字母大写,以满足特定的文本格式。capitalizeFirstLetter函数接受一个字符串作为参数,并返回一个新字符串,其中首字母大写。