word/finder: emulate gallery page in javascript

[sheet.git] / word / quiz.js

diff --git a/word/quiz.js b/word/quiz.js
index bb12a832c73b170e496dc09e25e6fb88aa0c8849..d32368bb01bdaae2160c64798384e7fe29138418 100644 (file)
--- a/word/quiz.js
+++ b/word/quiz.js
@@ -8,21 +8,30 @@ Array.prototype.shuffle = function () {
 
 class WordQuiz {
        dataselect(json) {
+               this.data = json;
+               this.cats = {}; // category lookup
+               for (let i in json) {
+                       let cat = json[i][3];
+                       if (this.cats[cat]) {
+                               this.cats[cat].push(i);
+                       }
+                       else {
+                               this.cats[cat] = [i];
+                       }
+               }
+               return this.datafilter(json);
+       }
+
+       datafilter(json) {
                // find viable rows from json data
                let rows = Object.values(json);
-               if (this.preset.cat !== undefined) {
-                       let cats = {}; // category lookup
-                       for (let i in json) {
-                               let cat = json[i][3];
-                               if (!cats[cat]) cats[cat] = [];
-                               cats[cat].push(i)
-                       }
 
+               if (this.preset.cat !== undefined) {
                        rows = [];
-                       let children = cats[this.preset.cat];
+                       let children = this.cats[this.preset.cat];
                        for (let loop = 0; children.length && loop < 20; loop++) {
                                rows.push(...children);
-                               children = children.map(cat => cats[cat]).filter(is => is).flat();
+                               children = children.map(cat => this.cats[cat]).filter(is => is).flat();
                        }
                        rows = rows.map(row => json[row]).filter(row => row[2]);
                }