firstLettersstrfirstLettersconsole.log(getFirstLetters('Bobby Hadz Com.')); The code for this article is available onGitHub TheString.match()method matches a string against a regular expression. The method retu
To capitalize the first letter in a string is easy if you undertake some steps.First of all you should get the first letter of the string by setting the charAt() method at 0 index:Javascript charAt method1 2 let string = "w3docs.com"; console.log(string.charAt(0)); // Returns...
通常, JavaScript 字符串是原始值,可以使用字符创建:var firstName = "John" 但我们也可以使用 new 关键字将字符串定义为一个对象:var firstName = new String("John") 实例 var x = "John"; var y = new String("John"); typeof x // 返回 String typeof y // 返回 Object 尝试一下 » 不要...
In this example we will check the JavaScript Capitalize the First Letter of a String implementation. JavaScript provides many functions to work with Strings in general. We will leverage a few of them to achieve our aim. There are more than one way of accomplishing the task at hand and we s...
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.
[1+2,3+4] // A 2-element array. First element is 3, second is 7 数组初始化器中的元素表达式本身可以是数组初始化器,这意味着这些表达式可以创建嵌套数组: 代码语言:javascript 复制 let matrix = [[1,2,3], [4,5,6], [7,8,9]]; ...
To capitalize the first letter of a string in JavaScript:Use the charAt() function to isolate and uppercase the first character from the left of the string. Use the slice() method to slice the string leaving the first character. Concatenate the output of both functions to form a capitalized...
let name = new URL(document.URL).searchParams.get("name"); document.querySelector('h1').innerHTML = "Hello " + name; 这个两行脚本从文档 URL 的“name”查询参数中提取输入。然后使用 DOM API 将 HTML 字符串注入到文档中的第一个 标签中。此页面旨在通过以下 URL 调用: 代码语言:javascript...
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...
JavaScript comes bundled with a string method called toUpperCase, which could be used to capitalize the whole string. However, it does not provide a method that could capitalize only the first letter of a specific string. In this article, we'll learn to build a functionality that could capital...