How to check if the Python String is empty or not? In python, there are several ways to check if the string is empty or not. Empty strings are considered as false meaning they are false in a Boolean context. An empty check on a string is a very common and most-used expression in ...
To check if a string is empty or whitespace using the len() function in Python, we will use the following steps.First, we will find the length of the input string using the len() function. We will store the length in a variable str_len. Now, we will check if the length of the...
Python Program to Check a String and Number is Palindrome Or Not $emptyString = ""; if ($emptyString =~ /^\s*$/) { print "String is empty and length is zero\n"; } #Conclusion In summary, various approaches are utilized: Length Function: The length function is easy to use and ...
Thefloat()function can be used to check if a string is a floating-point number in Python, actually, this method converts a string to a floating-point number however, we can use this to check string contains a float value. When passed a string that cannot be converted to a float, it ...
#include <cstring> #include <iostream> #include <string> using std::cin; using std::cout; using std::endl; using std::string; int main() { string string1("This is a non-empty string"); string string2; string1.empty() ? cout << "[ERROR] string is empty!" << endl : cout <...
To check if a certain phrase or character is present in a string, we can use the keywords in or not in.ExampleGet your own Python Server Check if the phrase "ain" is present in the following text: txt = "The rain in Spain stays mainly in the plain"x = "ain" in txt print(x) ...
A palindrome is a string that is the same read forward or backward. For example, "dad" is the same in forward or reverse direction. Another example is "aibohphobia", which literally means, an irritable fear of palindromes. Source Code # Program to check if a string is palindrome or not...
First, we define a function calledIf_TextFileEmpty()and create a variable calledmy_fileinside the function. We will call thePath()class and define a file’s path; we putrbefore the string to avoid a unicode error. my_file=Path(r"C:\Users\Dell\Desktop\demo\files\Mytextfile.txt") ...
Here, we are going to learnhow to check whether a string is empty or not in Scala programming language? Submitted byNidhi, on May 25, 2021 [Last updated : March 10, 2023] Scala – Check Empty String Here, we will create strings using theStringBuilderclass and then we will use theisEm...
Learn: How to check whether a given string is empty or not using a java program? In this program we will use String.isEmpty() method to check given string is empty or not? String.isEmpty()It is a predefined (built-in) method of String class in Java, it return...