Insert a word before the file name’s dot extension in JavaScript?

Let’s say the following is our file name −

var actualJavaScriptFileName = "demo.js";

Following is the word to be inserted before the dot extension −

var addValueBetweenFileNameAndExtensions = "programming";

At first, you need to split() the file name on the basis of dot(.) and then to insert a character, you can use the concept of template variables. Following is the code −

Example

var addValueBetweenFileNameAndExtensions = "programming";
var actualJavaScriptFileName = "demo.js";
console.log("The actual File name="+actualJavaScriptFileName);
var [fileName, fileExtension] = actualJavaScriptFileName.split('.');
console.log("After adding into the file name=");
console.log(`${fileName}-
${addValueBetweenFileNameAndExtensions}.${fileExtension}`)

To run the above program, you need to use the following command −

node fileName.js.

Output

Here, my file name is demo124.js. This will produce the following output −

PS C:\Users\Amit\JavaScript-code> node demo.js
The actual File name=demo.js
After adding into the file name=
demo-programming.js

AmitDiwan

Updated on 10-Sep-2020 07:07:14

• Related Questions & Answers
• Get file extension name in Java
• Perl File Extension
• Java Program to strip a filename of its extension after the last dot
• Insert a node as a child before an existing child in JavaScript?
• Change the file extension in the text column in MySQL?
• C# program to get the extension of a file in C#
• How to get the file extension using PowerShell?
• Get only the file extension from a column with file names as strings in MySQL?
• How to change file extension in Python?
• Is name a reserved word in MySQL?
• MySQL query to replace part of string before dot
• Updating a MySQL column that contains dot (.) in its name?
• Finding the most frequent word(s) in an array using JavaScript
• Dot notation in JavaScript
• How to extract file extension using Python?