word/multichoice: skip imageless (unanswerable) questions

diff --git a/word/multichoice.js b/word/multichoice.js
index 761b966dd3cc3976e9affc468e3c661bfc611824..61a7b5adbb7950d4c4bbb0161cb27c3dcdb23f13 100644 (file)
--- a/word/multichoice.js
+++ b/word/multichoice.js
@@ -1,6 +1,7 @@
 class WordMultiChoice extends WordQuiz {
        next() {
                let word = this.words.shift();
+               if (!word[2]) return this.next();
                let form = put(this.form,
                        '+img[src=$]+ul', `/data/word/en/${word[2]}.jpg`,
                );