We will replace all dots in a string using javascript. There are 4 methods to replace the dots(.) in the string all of them are described with examples.
Methods to Replace All Dots in a String:
- Using replace() method
- Using split() and join() method
- Using reduce() and spread operator
- Using replaceAll() method
Method 1: JavaScript replace() Method
The string.replace() function is used to replace a part of the given string with another string or a regular expression. The original string will remain unchanged.
Syntax:
str.replace(A, B)
Example: we are replacing the dots(.) with space( ) in the text “A.Computer.science.Portal”.
javascript
// Assigning a stringlet str = "A.Computer.science.Portal";// Calling replace() functionlet res = str.replace(/\./g, " ");// Printing original stringconsole.log("String 1: " + str);// Printing replaced stringconsole.log("String 2: " + res); |
String 1: A.Computer.science.Portal String 2: A Computer science Portal
Method 2: JavaScript Split() and Join() Method
We can split up strings of text with the Javascript split method and join strings using the replace characters with the join method.
Syntax:
string.split('.').join(' ');
Example: we are replacing the dots(.) with space( ) using split and join.
javascript
// Assigning a stringlet str = "A.Computer.Science.portal";// Calling split(), join() functionlet newStr = str.split(".").join(" ");// Printing original stringconsole.log("String 1: " + str);// Printing replaced stringconsole.log("String 2: " + newStr); |
String 1: A.Computer.Science.portal String 2: A Computer Science portal
Method 3: JavaSccript reduce() Method and JavaScript spread operator
We can use the spread operator to make an array from the character of a string and form a string with the help of reduce method without dots in the string.
Syntax:
[...str].reduce( (accum, char) => (char==='.') ? accum : accum + char , '')
Example: In this example, we will replace ( ‘.’ ) by using the spread operator and reduce function.
Javascript
// Assigning a stringlet str = "A.Computer.Science.portal";// using reduce(), and sprea operatorlet newStr = [...str].reduce( (s, c) => (c === "." ? s : s + c),"");// Printing original stringconsole.log("String 1: " + str);// Printing replaced stringconsole.log("String 2: " + newStr); |
String 1: A.Computer.Science.portal String 2: AComputerScienceportal
Method 4: JavaScript replaceAll() Method
The replaceAll() method returns a new string after replacing all the matches of a string with a specified string or a regular expression. The original string is left unchanged after this operation.
Syntax:
const newString = originalString.replaceAll(regexp | substr , newSubstr | function)
Example: This example uses the replaceAll() method to replace ( ‘.’ ).
Javascript
let str = "Geeks.for.Geeks";let replacedStr = str.replaceAll(".", "");console.log("Original string : " + str);console.log("Modified string : " + replacedStr); |
Original string : Geeks.for.Geeks Modified string : neveropen
