JavaScript String charCodeAt() ThecharCodeAt()method returns the code of the character at a specified index in a string: The method returns a UTF-16 code (an integer between 0 and 65535). Example lettext ="HELLO WORLD"; letchar= text.charCodeAt(0); ...
可以使用String作为toString()更可靠的代替方法,因为它在用于null和undefined时仍然有效。例如: js constnullVar=null;nullVar.toString();// TypeError: nullVar is nullString(nullVar);// "null"constundefinedVar=undefined;undefinedVar.toString();// TypeError: undefinedVar is undefinedString(undefinedVar);/...
JavaScript counts positions from zero.0 is the first position in a string, 1 is the second, 2 is the third ...Both methods accept a second parameter as the starting position for the search.Searching for a String in a StringThe search() method searches a string for a specified value and...
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Javascript String类的属性及方法 String 类 Attribute and method anchor() 创建一个标签的实例,将其name属性设置为被传递给此方法的字符串 big() 将字符串转换为标签的一个实例 blink() 将字符串转换为<blink>标签的一个实例 bold() 将字符串转换为<bold>标签的一个实例 charAt() ...
If you are looking to find a certain character or set of characters in a string you can use the .indexOf method to return the position of the character in integer format. For example var myName = "My Name is Nick Coughlin"myName.indexOf("N")//11 Will return 11 because that is the...
例:String s="this is a demo of the getChars method."; char buf[]=new char[20]; s.getChars(10,14,buf,0); 4、getBytes() 替代getChars()的一种方法是将字符存储在字节数组中,该方法即getBytes()。 5、toCharArray() 6、equals()和equalsIgnoreCase() 比较两个字符串 ...
JavaScript is an essential language for web development, and understanding its core features and methods is crucial for every developer. One such method is the indexOf() method, which can be highly useful when working with strings. In this blog post,
JavaScript String Methods MethodDescription charAt() Returns the character at the specified index. concat() Joins two or more strings. replace() Replace a string with another string. split() Converts the string to an array of strings. substr() Returns a part of a string by taking the starti...
String 的 substring() 方法返回该字符串从起始索引到结束索引(不包括)的部分,如果未提供结束索引,则返回到字符串末尾的部分。