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Check If A Value Exists In An Array

This function checks if a value exists in an array. It uses PHP’s in_array function which checks if a value…

Get The First Element Of An Array

This function returns the first element of an array. It uses PHP’s reset function which sets the internal pointer of…

Check If String Starts With Another String

This function checks if a given string starts with another string. It also uses strpos but checks specifically if the…

Check If String Contains Another String

This function checks if a given string contains another string. It uses PHP’s strpos function which returns the position of…

Check If String Ends With Another String

This function checks if a given string ends with another string. It uses substr to get the ending part of…

Find the minimum item of a set

This function returns the minimum value from a set. JavaScript: TypeScript:

Find the maximum item of a set

This function returns the maximum value from a set. JavaScript: TypeScript:

Check if an array is empty

This function checks whether an array is empty. JavaScript: TypeScript:

Remove an item from a set

This function removes an item from a set. JavaScript: TypeScript:

Create a set from an array

This function creates a set from an array. The set contains all unique elements of the array. JavaScript: TypeScript: