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How to Check if a Slice Contains an Element in Go

In Golang, there are 2 ways to check if a slice contains an element. Using contains Function The following example should cover whatever you are trying to do: package main import "fmt" func Contains[E comparable](s []E, v E) bool { for _, ...
ada

How to Determine Whether a Given Integer is Between two Other Integers in Python

In Python, there are 2 ways to determine whether a given integer is between two other integers. Using Comparisons Unlike C, all comparison operations in Python have the same priority, which is lower than that of any arithmetic, shifting or bitwise o...
ada

How to Make a List of Alphabet Characters in Python

In Python, there are 2 ways to make a list of alphabet characters. Using string Module The string.ascii_lowercase is a pre-initialized string used as string constant. In Python, string ascii_lowercase will give the lowercase letters ‘abcdefghijklmno...
Patcher56

How to Get a Random Number Between a Float Range in Python

In Python, using the uniform function is the easiest way to get a random number between a float range. Using uniform Method The random.uniform(a, b) method returns a random floating point number N such that a
Unused

How to Check if IP Address is in Private Network Space in Go

In Golang, using the IsPrivate function is the easiest way to check if IP address is in private network space. Using IsPrivate Function The IsPrivate() function reports whether ip is a private address, according to RFC 1918 (IPv4 addresses) and RFC...
aweis

How to Remove Invalid UTF-8 Characters from a String in Go

In Golang, there are 3 ways to remove invalid UTF-8 characters from a string. Using ToValidUTF8 Function The strings.ToValidUTF8() function returns a copy of the string s with each run of invalid UTF-8 byte sequences replaced by the replacement str...
pooriabt

How to Check if a File is a Valid Image in Go

In Golang, there are 2 ways to check if a file is a valid image. Using DetectContentType Function The http.DetectContentType() function implements the algorithm described at https://mimesniff.spec.whatwg.org/ to determine the Content-Type of the gi...
pooriabt

How to Remove the First Character of a String in Go

In Golang, using the DecodeRuneInString function is the easiest way to remove the first character of a string. Using DecodeRuneInString Function The following example should cover whatever you are trying to do: package main import ( "fmt" ...
Patcher56

How to Make First Letter of Words Uppercase in a String in Go

In Golang, using the cases package is the easiest way to make first letter of words uppercase in a string. Using cases Package install Use the following command to download the repository to the local file system. install go mod tidy ...
pooriabt

How to Iterate Over a Slice in Reverse in Go

In Golang, there are 2 ways to iterate over a slice in reverse. Using For Loop There is no convenient operator for this to add to the range one in place. You'll have to do a normal for loop counting down. See the following example: package main...
Patcher56

How to Check If an Object Is of a Given Type in Python

In Python, there are 2 ways to check if an object is of a given type. Using isinstance Method The isinstance(object, classinfo) method returns True if the object argument is an instance of the classinfo argument, or of a (direct, indirect, or virtua...
Unused

How to Index Characters in a String in Go

In Golang, there are 2 ways to index characters in a string. Using individual characters In UTF-8, ASCII characters are single-byte corresponding to the first 128 Unicode characters. Strings behave like slices of bytes. A rune is an integer value i...
Patcher56

How to Unpack Array as Arguments in Go

In Golang, there are 2 ways to unpack array as arguments. Using Variadic Functions Variadic functions can be called with any number of trailing arguments. Here’s a function that will take an arbitrary number of ints as arguments. For example, p...
Unused

How to Generate Random Integers Between 0 and 9 in Python

In Python, there are 3 ways to generate random integers between 0 and 9. Using randrange Method The random.randrange(start, stop[, step]) method returns a randomly selected element from range(start, stop, step). For example, #!/usr/bin/python3 ...
Patcher56

How to Count the Occurrences of a List Item in Python

In Python, there are 3 ways to count the occurrences of a list item. Using count Method The str.count() method returns the number of non-overlapping occurrences of substring sub in the range [start, end]. Optional arguments start and end are interpr...
Patcher56