binding

binding => var-symbol init-expr Creates new bindings for the (already-existing) vars, with the supplied initial values,...

if-let

bindings => binding-form test If test is true, evaluates then with binding-form bound to the value of test, if not, yi...

let

binding => binding-form init-expr binding-form => name, or destructuring-form destructuring-form => map-destructure-form...

when-let

bindings => binding-form test When test is true, evaluates body with binding-form bound to the value of test