在JavaScript 中,可以通过向String.prototype添加方法来扩展字符串对象的功能。这样,所有字符串实例都会继承这些新方法。 示例扩展方法 1.capitalize() 将字符串的首字母转换为大写。 应用场景:当需要格式化用户输入或显示文本时。 实现: 代码语言:txt 复制
var str = "javascript capitalize string"; var res = str.replace(/wS*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();}); This code is written in JavaScript. It defines a function that capitalizes the first letter of each word in a string. The fu...
代码语言:javascript 复制 iex> string = "\u0065\u0301" iex> byte_size(string) 3 iex> String.length(string) 1 iex> String.codepoints(string) ["e", "́"] iex> String.graphemes(string) ["é"] 虽然上面的例子是由两个字符组成的,但用户认为它是一个。 图形符号也可以是被某些语言解释...
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...
9 str.capitalize把字符串的第一个字母转换为大写字母,其余的转换为小写显示。 10 str.capitalize!与capitalize 相同,但是如果没有修改,capitalize! 返回 nil。 11 str.casecmp不区分大小写的字符串比较。 12 str.center居中字符串。 13 str.chomp从字符串末尾移除记录分隔符($/),通常是 \n。如果没有记录分隔符...
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...
JavaScriptJavaScript String Video Player is loading. Current Time0:00 / Duration-:- Loaded:0% 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" ...
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...
1. What is the purpose of the capitalize function in JavaScript? To convert a string to uppercase To capitalize the first letter of a string To reverse a string To trim whitespace from a string Show Answer 2. Which method is used to add the capitalize function to the String prototype?
capitalize函数—首字母大写 capitalize([string=’’]) 将字符串的首字母转化为大写,其余小写 let s="i AM CAPTAIN"let result=_.capitalize(s)console.log(result) endsWith——判断结尾字符 endsWith([string=’’], [target], [position=string.length]) ...