你需要通过组合使用trim()和replace()来实现。 javascript let str = " Hello World "; let middleSpacesRemoved = str.trim().replace(/\s+/g, ''); console.log(middleSpacesRemoved); // 输出: "HelloWorld" // 如果要保留开头和结尾的空格,可以这样操作: let leadingAndTrailingSpacesPreserved = str....
String.prototype.Trim = function() { return this.replace(/(^\s*)|(\s*$)/g, ""); } var s = " leading and trailing spaces "; window.alert(s + " (" + s.length + ")"); s = s.Trim(); window.alert(s + " (" + s.length + ")");...
vars =" leading and trailing spaces "; s = s.Trim();
String.prototype.Trim = function() { return this.replace(/(^/s*)|(/s*$)/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*$)/g, ""); } var s = " leading and trailing spaces "; window.alert(s + " (" + s.length + ")"); s = s.Trim(); window.alert(s + " (" + s.length + ")"); ...
给你的Javascript中的String加上Trim的功能! String.prototype.trim = function() { return this.replace(/(^/s*)|(/s*$)/g, ""); }// 例子 var s = " leading and trailing spaces ";window.alert(s + " (" + s.length + ")"); ...
Trim function, trims all leading and trailing spaces: Code: String.prototype.trim = function(){return (this.replace(/^[\s\xA0]+/, "").replace(/[\s\xA0]+$/, ""))} startsWith to check if a string starts with a particular character sequecnce: ...
replace(/\s+/g, ' ') // Replace multiple spaces with a single space .trim(); // Remove leading and trailing spaces // Set the cleaned text in the output textarea document.getElementById('outputTextArea').value = cleanedText; <textarea id="inputTextArea" rows="10" cols="50"></...
这会将单词边界(例如空格)旁边的任何字母字符替换为大写版本。然后你可以将它链接在一起,像这样:let str = "@!₪ test stri&!ng₪"; str = str.replace(/[^\w\s]/gi, "") // Remove non word characters .trim() // Remove trailing and leadings spaces .replace(/\b\w/g, (s) => s....
你甚至可以向预定义的对象添加属性和方法。例如,你可以在String原型对象上定义一个Trim方法,脚本中的所有字符串都将继承该方法。 String.prototype.trim =function() {//Replace leading and trailing spaces with the empty stringreturnthis.replace(/(^\s*)|(\s*$)/g, ""); ...