javascript - Legal verification of multiple-choice questions

Question

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< br>This is a question-answering system. The answer page contains all single-choice questions. I want to verify whether all questions have been selected when the user presses submit. If a question is missed and has not been selected, he cannot be allowed to submit. . . Excuse me, how can I achieve this legal verification using JQ or something else? (Each question in the front-end template is recycled)

Answer 1

jq呗

You always need to generate a submitted json, set the default selection value to -1, bind the click selection to the json data change, and check each option of the json when you click submit to see if there are still objects - 1 is fine

Answer 2

Use jq to verify it when submitting. Just loop through the verification js

Answer 3

//遍歷每個選擇題
var isfinish = true;
$(‘.table’).each(function(){
    //假如沒有填寫
    if($(this).find("input['type'=option]").is('checked')) { // 這句話可能有語法問題，你可以百度一下
        isfinish = false;
        return false;
    }
});
if(isfinish === false) {
    //提示
    return false;
}

Answer 4

If they are all single-choice, it stands to reason that you can get the number of selected items and compare them with the number of questions to make a judgment

function checkForm() {
    var q_cnt = ?;//count($data);
    return $("#masterForm input:radio:checked").length == q_cnt;
}