On Thursday, October 2, 2014 1:37:47 AM UTC-7, Marcus Lewis wrote: > => (doseq [file lastFileList] (.-name file)) > Error: [object FileList] is not ISeqable > at Error (native) > at cljs.core.seq (http://localhost:8080/app.js:3164:67) > > => (doseq [file (array-seq lastFileList)] (.log js/console (.-name file))) > > This works. It logs the filename. In case you're curious, this FileList is > coming from drag-drop events) > > Here's the ClojureScript that I would hope would catch this: > (array? coll) > (when-not (zero? (alength coll)) > (IndexedSeq. coll 0)) > > The resulting js is: > if (a instanceof Array || "string" === typeof a) { > return 0 === a.length ? null : new cljs.core.IndexedSeq(a, 0); > } > > Is there any reason not to make other array-like types ISeqable? I'm sure > there are better examples than FileList. For example, the same issue can be > seen with HTMLCollection: > > => (seq (.getElementsByTagName js/document.body "div")) > Error: [object HTMLCollection] is not ISeqable > at Error (native) > at cljs.core.seq (http://localhost:8080/app.js:3164:67)
If you don't want to use extend-type, reify, or specify!, you can use `array-seq`. > (array-seq (js/document.querySelectorAll "span")) (#<[object HTMLSpanElement]> #<[object HTMLSpanElement]> ...) -- Note that posts from new members are moderated - please be patient with your first post. --- You received this message because you are subscribed to the Google Groups "ClojureScript" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/clojurescript.
