word/quiz: preset configuration filters level

Manual option preset.cat to test difficulty selection.

diff --git a/word/quiz.js b/word/quiz.js
index 361d075e66391f517b08b8f51f7a12222ef9b954..146aff73e61171c10f81779aad8be30777d7da35 100644 (file)
--- a/word/quiz.js
+++ b/word/quiz.js
@@ -8,11 +8,16 @@ Array.prototype.shuffle = function () {
 
 class WordQuiz {
        dataselect(json) {
 
 class WordQuiz {
        dataselect(json) {

+               // find viable rows from json data

                let rows = Object.values(json);
                let rows = Object.values(json);

+               if (this.preset.level !== undefined) {
+                       rows = rows.filter(row => row[1] <= this.preset.level);
+               }

                return rows.shuffle();
        }
 
        load(dataurl) {
                return rows.shuffle();
        }
 
        load(dataurl) {

+               this.preset = {};

                fetch(dataurl).then(res => res.json()).then(json => {
                        this.words = this.dataselect(json)
                        this.setup();
                fetch(dataurl).then(res => res.json()).then(json => {
                        this.words = this.dataselect(json)
                        this.setup();