In this article, we are given a string and the task is to determine whether the string is made up of the same substrings or not.
Approach: Using Regular Expression with test() method
- Initialize a string to the variable.
- Use the test() method to test a pattern in a string.
- The test() method returns true if the match is found, otherwise, it returns false.
Example 1: This example checks for string geeksgeeksgeeks which is made up of the same substring, so it returns True.
Javascript
// Input string let str = "geeksgeeksgeeks" ;
// Function to check if string is made of same substring function check(str) {
return /^(.+)\1+$/.test(str)
} let ans = "String is not made up of same substrings" ;
if (check(str)) {
ans = "String is made up of same substrings" ;
} // Display output console.log(ans); |
Output
String is made up of same substrings
Example 2: This example checks for string geeksgeekgeeks which is not made up of the same substrings so it returns False.
Javascript
// Input string let str = "geeksgeekgeeks" ;
// Function to check if string is made of same substring function check(str) {
return /^(.+)\1+$/.test(str)
} let ans = "String is not made up of same substrings" ;
if (check(str)) {
ans = "String is made up of same substrings" ;
} // Display output console.log(ans); |
Output
String is not made up of same substrings