下面是Array toString()方法的示例。 例: // JavaScript to illustratetoString() methodfunctionfunc(){// Original arrayvararr = ["Geeks","for","Geeks"];// Creating a stringvarstr = arr.toString();document.write(str); } func(); 输出: Geeks,for,Geeks arr.toString()方法返回数组元素的字符串...
范例1: // Taking input a string.varstring ="GeeksforGeeks";// Taking a regular expression.varre1 =/G/;varre2 =/e/;varre3 =/s/;// Printing the index of matching alphabetsdocument.write(string.search(re1) +"");document.write(string.search(re2) +"");document.write(string.search(re...
string.replace('textToReplace',''); 示例:此示例替换第一次出现的字符串。 <!DOCTYPE html> How to remove text from a string in JavaScript? GeeksforGeeks How to remove text from a string in JavaScript? Original string is GeeksforGeeks New String is: Remove Text function...
String to a character array GeeksforGeeks <pid="one">GeeksforGeeks: A computer science portal functionmyGeeks(){ varstr=document.getElementById("one").innerHTML; document.getElementById("one").innerHTML=Array.from(str); } 输出:单击按钮之前: 点击按钮后: JavaScript 以网页开发而闻...
as variablevarstring="geeksforgeeks";a=string.substring(-1)b=string.substring(2.5)c=string.substring(2.9)// Printing new string which are// the part of the given stringdocument.write(a+"");document.write(b+"");document.write(c+"");geeksforgeekseksforgeekseksforgeeks 输出: geeksforgeeks...
string boolean string number string 方法2:使用JSON.stringify() JSON.stringify()将javascript对象转换为通过Web服务器发送数据所需的字符串。 语法: JSON.stringify(obj) 参数:可以是对象,数组。 示例: var obj_to_str={ name: "GeeksForGeeks", city: "Noida", contact:2488 }; var myJSON...
语法:String(value); 例: 先使用 typeof value查看值的类型。 在使用String)函数进行转换,在查看值的类型let value = true; alert(typeof value); // 显示值为:boolean类型 value = String(value); // 现在,值“true”是一个字符串类型 alert(typeof value); // 显示值为:string类型 ...
How to insert a string at a specific index?GeeksforGeeks How to insert a string at a specific index?The original stringis:GeeksGeeks Click on the button to insert'For'at the 5th index position Thenewarrayis:Insert elementfunctioninsertString(){letorigString="GeeksGeeks";letstringToAdd="For...
我们可以通过将regex与.replace()方法配合使用来解决此问题。 var string = "GeeksforGeeks"; // Some string console.log(string.replace(/eek/, "ool")); 1. 2. 3. 4. 输出: “ GoolsforGools” 1.
Convert comma separated string to array using JavaScript GeeksforGeeks Convert comma separated string to array using JavaScript Original string is"One, Two, Three, Four, Five"Separated Array is:Remove TextfunctionseparateString(){originalString="One, Two, Three, Four, Five";separatedArray=[];// ...