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Concatenative programming language
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<p>A concatenative programming language is a <a href="/facts/Point-free_programming/x8bU89wW">point-free</a> computer <a href="/facts/Programming_language/cWTYbgWa">programming language</a> in which all expressions denote <a href="/facts/Function_(mathematics)/CdReEKCh">functions</a>, and the <a href="/facts/Juxtaposition/IUYNbbyR">juxtaposition</a> of <a href="/facts/Expression_(computer_science)/eRlhoBeN">expressions</a> denotes <a href="/facts/Function_composition/r5Pvnmth">function composition</a>. Concatenative programming replaces <a href="/facts/Function_application/p4auE0QF">function application</a>, which is common in other programming styles, with <a href="/facts/Function_composition_(computer_science)/HMADGqKA">function composition</a> as the default way to build <a href="/facts/Subroutine/9vFJrg0A">subroutines</a>. </p>