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comparison src/test.js @ 0:45a3989c3447

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author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 11 Sep 2025 15:26:39 -0600
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-1:000000000000 0:45a3989c3447
1 // must load ot.js first
2
3 'use strict';
4
5 let nQuestions = 10;
6
7 for( let i=0; i<allQuestions.length; i++ ) {
8 allQuestions[i].i = i;
9 }
10
11 console.log(`using ${nQuestions} out of ${allQuestions.length} questions`)
12
13
14 function remove(a,i) {
15 return a.splice(i,1)[0];
16 }
17
18 function removeRandom(a) {
19 let i = Math.floor( Math.random() * a.length );
20 return remove(a,i);
21 }
22
23 let questions = [];
24 let allQuestions2 = JSON.parse(JSON.stringify(allQuestions));
25 for( let i=0; i<nQuestions; i++ ) {
26 let p = removeRandom(allQuestions2);
27 let a = [];
28 while( p.a.length > 0 ) {
29 a.push( removeRandom(p.a) );
30 }
31 p.a = a;
32 questions.push(p);
33 }
34
35 let encoder = document.createElement('span');
36
37 function htmlEncode(s) {
38 encoder.textContent = s;
39 return encoder.innerHTML;
40 }
41
42 function checkTest() {
43 let divs = document.querySelectorAll('div[q]');
44 let nCorrect = 0;
45 for( let div of divs ) {
46 let answer = allQuestions[div.getAttribute('q')].a[0];
47 let selected = div.querySelector('input[type=radio]:checked');
48 if( selected.value === answer ) {
49 selected.parentNode.insertAdjacentHTML( 'afterend', ' <span correct></span>' );
50 nCorrect++;
51 } else {
52 selected.parentNode.insertAdjacentHTML( 'afterend', ' <span wrong></span>' );
53 let correct = div.querySelector(`input[type=radio][value="${htmlEncode(answer)}"]`);
54 correct.parentNode.insertAdjacentHTML( 'afterend', ' <span correct></span>' );
55 }
56 }
57 document.querySelector('div[end]').innerHTML = `\
58 <p>${nCorrect} of ${divs.length} correct</p>
59 <p><a href="/test.html">Try again</a></p>
60 ` ;
61 }