S-Expressions - language feature

Example from 1 languages: Ion

null.sexp         // A null S-expression value
()                // An empty expression value
(cons 1 2)        // S-expression of three values
([hello][there])  // S-expression containing two lists

(a+-b)  ( 'a' '+-' 'b' )    // Equivalent; three symbols
(a.b;)  ( 'a' '.' 'b' ';')  // Equivalent; four symbols

Languages with S-Expressions include Ion

Languages without S-Expressions include JavaScript, Java, C3

View all concepts with or missing a hasSExpressions measurement

Read more about S-Expressions on the web: 1.