It is a commonly used naming convention in computing, for example for variable and subroutine names, and for filenames. Regular expression blue highlights show the match results of the regular expression pattern /r[aeiou]+/g (lowercase r followed by one or more lowercase vowels) A regular expression (shortened as regex or regexp), [1] sometimes referred to as a rational expression, [2][3] is a sequence of characters that specifies a match pattern in text. Some other programming languages have varying case sensitivity This means that if a function is defined in lowercase, it can be called in uppercase, but if a variable is defined in lowercase, it cannot be referred to in uppercase.
Letter case is the distinction between the letters that are in larger uppercase or capitals (more formally majuscule) and smaller lowercase (more formally minuscule) in the written representation of certain languages. String functions are used in computer programming languages to manipulate a string or query information about a string (some do both) The original hungarian notation for programming, for example, specifies that a lowercase abbreviation for the usage type (not data type) should prefix all variable names, with the remainder of the name in upper camel case As such it is a form of lower camel case. Implicit type conversion, also known as coercion or type juggling, is an automatic type conversion by the compiler Some programming languages allow compilers to provide coercion
[59] many other paradigms are supported via extensions, including design by contract [60][61] and logic programming
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