Use the Native JavaScript Methods: String.trimLeft(), String.trimRight(), and String.trim(). String.trim() is supported in IE9+ and all other major browsers: ' Hello '.trim() //-> 'Hello' String.trimLeft() and String.trimRight() are non-standard, but are supported in all major ...
var cleanName = displayName.trim(); // Use cleanName to display in the UI 总结来说,String的trim函数是JavaScript中一个常用且简单的方法,用于去除字符串首尾的空白字符。在编程实践中,正确使用trim函数可以提升你的代码质量,确保数据的准确性和用户界面的整洁性。 相关问答FAQs: 如何在 JavaScript 编程中使用...
Use the code below to make trim a method of all Strings. These are useful to place in a global Javascript file included by all your pages. String.prototype.trim = function() {return this.replace(/^\s+|\s+$/g,"");} String.prototype.ltrim = function() {return this.replace(/^\s+/...
1、trim() -- 去除字符串中开始和结尾部分,所包含的指定字符。 默认是 空格; 参考: http://www.nowamagic.net/javascript/js_TrimInJavascript.php 1//prototype: trim2String.prototype.trim =function(strToRemove){3varreg =null;4//to trim space character, when not passing the param5if(strToRemove...
I tried to apply .trim() to a string in one of my JavaScript programs. It's working fine under Mozilla, but an error displays when I try it in IE8. Does anyone know what is going on here? Is there anyway I can make it work in IE? code: var ID = document.getElementByID('rep...
JavaScript中为String对象添加 trim() 方法 //自己动手为string添加trimString.prototype.trim=function(){returnthis.replace(/^\s+|\s+$/g,"");}String.prototype.ltrim=function(){returnthis.replace(/^\s+/g,"");}String.prototype.rtrim=function(){returnthis.replace(/\s+$/g,"");}varstr =" ...
# Trim all Strings in an Array using JavaScript To trim all strings in an array: Use the Array.map() method to iterate over the array. Call the String.trim() method on each string and return the result. The map() method will return a new array containing only strings with the whitesp...
This JavaScript tutorial explains how to use the string method called trim() with syntax and examples. In JavaScript, trim() is a string method that is used to remove whitespace characters from the start and end of a string. Whitespace characters include
console.log(newMessage); // Output: JAVASCRIPT IS FUN Run Code trim() Syntax The syntax of trim() is: str.trim() Here, str is a string. trim() Parameter The trim() method does not take in any parameters. trim() Return Value Returns a new string representing the str stripped of ...
Trim String Whitespace in JavaScript withtrim() trim()is a built-in string method which is used to, well, trim a string. The method removes whitespace from both ends of a string and returns it: string.trim(); Let's create ausername- with a double whitespace in the beginning and a sin...