String.prototype.Trim = function() { return this.replace(/(^\s*)|(\s*$)/g, ""); } var s = " leading and trailing spaces "; window.alert(s + " (" + s.length + ")"); s = s.Trim(); window.alert(s + " (" + s.length + ")");
JavaScript Code: // Define a function named strip that removes leading and trailing whitespaces from a stringfunctionstrip(str){// Use the replace method with a regular expression to remove leading and trailing whitespacesreturnstr.replace(/^\s+|\s+$/g,'');}// Test the strip function wit...
String.prototype.Trim = function() { return this.replace(/(^/s*)|(/s*$)/g, ""); } var s = " leading and trailing spaces "; window.alert(s + " (" + s.length + ")"); s = s.Trim(); window.alert(s + " (" + s.length + ")"); ...
String.prototype.Trim = function() { return this.replace(/(^\s*)|(\s*$)/g, ""); } var s = " leading and trailing spaces "; window.alert(s + " (" + s.length + ")"); s = s.Trim(); window.alert(s + " (" + s.length + ")"); ...
console.log(trimString(exampleStr, 3)); // 输出: "HelloWorld!" 测试与验证 在实际使用中,无论采用哪种方法,都应该对去空格的效果进行测试和验证,以确保代码按预期工作。可以通过编写单元测试或使用简单的控制台输出来验证结果。 javascript let testStr = " Leading and trailing spaces "; console.log("Or...
} String.prototype.LTrim =function() { returnthis.replace(/(^\s*)/g,""); } String.prototype.Rtrim =function() { returnthis.replace(/(\s*$)/g,""); } 使用方式 1 2 3 vars =" leading and trailing spaces "; s = s.Trim();...
replace(/\s+/g, ' ') // Replace multiple spaces with a single space .trim(); // Remove leading and trailing spaces // Set the cleaned text in the output textarea document.getElementById('outputTextArea').value = cleanedText; <textarea id="inputTextArea" rows="10" cols="50"></...
给你的Javascript中的String加上Trim的功能! String.prototype.trim = function() { return this.replace(/(^/s*)|(/s*$)/g, ""); }// 例子 var s = " leading and trailing spaces ";window.alert(s + " (" + s.length + ")"); ...
这会将单词边界(例如空格)旁边的任何字母字符替换为大写版本。然后你可以将它链接在一起,像这样:let str = "@!₪ test stri&!ng₪"; str = str.replace(/[^\w\s]/gi, "") // Remove non word characters .trim() // Remove trailing and leadings spaces .replace(/\b\w/g, (s) => s....
trim 的函数作为 // String 构造函数的原型对象的一个方法。 String.prototype.trim = function() { // 用正则表达式将前后空格 // 用空字符串替代。 return this.replace(/(^\s*)|(\s*$)/g, ""); } // 有空格的字符串 var s = " leading and trailing spaces "; ...