https://ask.clojure.org/index.php/tag/apply https://ask.clojure.org/index.php/12051/apply-behaves-differently-in-clj-cljs-with-empty-argument <p>In <code>cljs</code>:</p> <pre><code>ClojureScript 1.10.238 app:cljs.user=&gt; (defn f [a] a) (f) #'cljs.user/f ---- Compiler Warning on &lt;cljs form&gt; line:1 column:2 ---- Wrong number of args (0) passed to cljs.user/f 1 (f) ^--- ---- Compiler Warning ---- nil app:cljs.user=&gt; (defn f [a] a) (apply f []) #'cljs.user/f nil </code></pre> <hr> <p>In <code>clj</code>:</p> <pre><code>&gt; (defn f [a] a) (f) #'redacted.ns/f Execution error (ArityException) at redacted.ns/eval28662 (form-init217321140160545149.clj:2261). Wrong number of args (0) passed to: redacted.ns/f &gt; (defn f [a] a) (apply f []) #'redacted.ns/f Execution error (ArityException) at redacted.ns/eval28665 (form-init217321140160545149.clj:2265). Wrong number of args (0) passed to: redacted.ns/f </code></pre> <hr> <p>In cljs, apply silently returns <code>nil</code>, while in clj, an <code>ArityException</code> is thrown.</p> ClojureScript https://ask.clojure.org/index.php/12051/apply-behaves-differently-in-clj-cljs-with-empty-argument Mon, 11 Jul 2022 17:39:15 +0000 https://ask.clojure.org/index.php/12045/expected-difference-in-clj-cljs-behavior-with-apply-max <p>In <code>cljs</code>:</p> <pre><code>app:cljs.user=&gt; (apply max []) nil </code></pre> <hr> <p>In <code>clj</code>:</p> <pre><code>&gt; (apply max []) Execution error (ArityException) at redacted.ns/eval26821 (form- init217321140160545149.clj:741). Wrong number of args (0) passed to: clojure.core/max </code></pre> <hr> <p>Not sure which behavior I prefer (maybe cljs?), but this results in surprising-to-me outcomes in our application.</p> ClojureScript https://ask.clojure.org/index.php/12045/expected-difference-in-clj-cljs-behavior-with-apply-max Mon, 11 Jul 2022 16:56:19 +0000