In Swift, a substring is a small sequence of characters present in the large string, for example, “Car color is blue”, then “Car”, “color”, “is”, and “blue” are the substrings of the given string. Swift provides the following methods to check if the string contains the specified substring or not − Using range(of:) method Using contains() method Using Regex Method 1: Using range(of:) method The range(of:) method is used to find the range of the first occurrence of the given substring in the string. So using this method we can check if the given substring is present in ... Read More

Text data manipulation and processing can benefit from using a Python program that will eliminate the last specified character from a string. This kind of application can be used to modify data by deleting particular characters, validate user input by removing incorrect characters, and clean up the text by removing unwanted characters. In Python, we have some string in-built functions like rstrip() that remove the last specified character from the string. The slicing technique is the easier way to remove the character from the end. Syntax The following syntax is used in the examples − len() The len() ... Read More

Replacing characters in a string with specified characters is a common text-processing method with many different applications. There are some examples like Data transformation, text normalization, and data cleansing. In Python, we have some string in-built functions that can be used to convert a string into an array of characters based on the specified character. The group of characters to form a word is called a string. In this program, we need an empty string to store the new string in it. Syntax The following syntax is used in the examples − replace() The replace() is an inbuilt function ... Read More

Python has inbuild functions like lstrip(), strip(), and rstrip() that can be used to remove the character from both sides. The term trim the string of characters means to remove the character from the given string. For example − Given string is ‘iiiiiiiiiiiBOXERiiiiiiiiii’ and the character ‘i’ from both sides. The final result becomes BOXER. Syntax The following syntax is used in the examples − strip() This is a predefined method used in Python to trim the character from both sides of the string. [1:] [:-1] [1:] − This represents the after-slicing on the left side to ... Read More

In Python, we have some time built-in functions like strftime() and datetime.now() that can be used to find the time in AM/PM format. The format time in AM/PM format uses various applications such as user interface, report & document, data visualization, and event scheduling. We will speak the time of AM when timing between midnight 11:59:00 to 12 noon. In the same way, we can say that the time difference between 12 noon to 11:59:00 midnight is called PM. The abbreviation AM/PM is used to indicate the exact time. Syntax The following syntax is used in the example &miinus; strftime('%I:%M:%S ... Read More

In this article, we will learn how to develop a Python program using append(), extend(), and list() that will convert the given string into an array of characters. In this program, the array of characters represents the group of individual characters that break from the string. Syntax The following syntax is used in the examples − append() This is a predefined method used in Python that adds the character from the end. extend() This method is used to break the characters from a string. list() The method converts the string into a list of individual characters. [*string_variable_name] ... Read More

When we are creating a web service that allows users all over the world to book events, we might use this program to convert each user's local time to GMT before putting it in our database. This would make comparing and displaying event times easier for users in different time zones comparing and displaying event times easier for users in different time zones. In Python, we have some time built-in functions like timezone(), localize(), now(), and astimezone() that can be used to convert the local time into GMT. The local time represents the current time whereas GMT is defined by ... Read More

In Python, "array" is typically called a list. The Numpy is a multi-dimensional homogeneous array of fixed-size items. Due to some similarities between NumPy arrays and Python lists it defines significant variations in data formats such as memory utilization, performance, and functionality. Using array() and sort() method The NumPy array can be sorted in ascending or descending order. This can be possible using these methods because the array() allows the user to put the list inside of the parameter and pass it to sort() to get the result. As we know a list has powerful functionality in Python. Syntax It's ... Read More

In Python, we have a predefined function rstrip() to remove the character from the right side. It means it will remove the whitespace from the rightside side of the string. Let’s take an example to understand the trim of a string from the left side. In the given string “WIRELESS” remove the right string LESS and get the result value as “WIRE”. In the given string “kingdom” remove the right string dom and get the result value as “king”. Syntax The following syntax used in the examples are − isspace() This is a predefined method used in ... Read More

In Python, we have some built-in functions like join(), map(), reduce(), and len() that can be used to convert the array of characters into the string. The array of characters is defined by breaking each character from the string. Python has a predefined method join() to join all the characters to make the string. Another way to solve the program is by using list comprehension and the join() method. Let’s take an example to understand the conversion of an array of characters into a string − The character is ‘p’, ‘e’, and ‘n’: The string becomes a pen. The ... Read More