Question

我的事件监听器没有触发。我在行testRun.addEventListener内放了一个断点，但它从未到达断点。所以我认为这意味着函数永远不会执行。我似乎无法弄明白为什么。

我的HTML：

  <form>
    <input id="hdfs-test" type="radio" name="test-select" class="btn btn-default btn-lg">HDFS
    <input id="hive-test" type="radio" name="test-select" class="btn btn-default btn-lg">HIVE
    <input id="hdfs-hive-test" type="radio" name="test-select" class="btn btn-default btn-lg">BOTH

    <textarea id="event-textarea" rows="8" class="form-control" placeholder="Events..."></textarea>

    <input id="submit-test" type="submit" class="btn btn-default btn-lg" value="Submit">
  </form>

JS：

$(document).ready(function() {
    // Data to describe what kind of test
    var testData = {
        "timestamp": "",
        "hive": 0,
        "hdfs": 0,
        // Contains a list of testData objects
        "beacons":[]
    };

    var selectedTest = document.querySelector('input[name=test-select]:checked');
    var testRun = document.getElementById("submit-test");
    testRun.addEventListener('submit', function() {
        var testType = selectedTest.id;
        if (testType == "hdfs-test") {
            testData["hdfs"] = 1;
            testData["hive"] = 0;
        } else if (testType == "hive-test") {
            testData["hdfs"] = 0;
            testData["hive"] = 1;
        } else if (testType == "hdfs-hive-test") {
            testData["hdfs"] = 1;
            testData["hive"] = 1;
        }
        var events = document.getElementById("event-textarea").value;
        // check in valid input
        var eventSource = events.replace("],[","],,,,[");
        // beaconLists allows users to submit --> [{beacon1}, {beacon2}, ...], [{beacon3}, {beacon4}, ...]
        var beaconLists = eventSource.split(",,,,");
        for (var i = 0; i < beaconLists.length; i++) {
            // inspect one list in beaconLists [{beacon1}, {beacon2}, ...]
            var beaconList = beaconLists[i];
            try {
                // list of JSON objects
                var beaconObjList = JSON.parse(beaconList);
                for (var j = 0; j < beaconObjList.length; j++) {
                    var beaconObj = beaconObjList[j];
                    if (beaconObj["data"] && beaconObj["application"]) {
                    //    successful parse to find events
                    //    describe beacon being tested
                        alert("yes");
                        var beacon = {
                            "app_name": beaconObj["application"]["app_name"],
                            "device": beaconObj["application"]["device"],
                            "device_id": beaconObj["application"]["device_id"],
                            "os": beaconObj["application"]["os"],
                            "os_version": beaconObj["application"]["os_version"],
                            "browser": beaconObj["application"]["browser"],
                            "beacon": beaconObj
                        };
                        // append to testData
                        testData["beacons"].append(beacon);
                        // reset beacon so we can append new beacon later
                        beacon = {};
                    } else {
                    //    notify event isn't in the correct format?
                        alert("no");
                    }
                }
            } catch (e) {
            //     notify bad JSON
                alert("failed");
            }
        }
        alert("hi");
        console.log(testData);
        //$.ajax({
        //    type: "POST",
        //    url: "/test/",
        //    data: testData,
        //    success: function () {
        //        alert("yay");
        //    },
        //    failure: function () {
        //        alert("boo");
        //    }
        //});

    });

});

Answer 1

尝试将其附加到表单，而不是按钮。

Answer 2

testRun = document.getElementById("submit-test")这是按钮，而不是表单。您需要提交form而不是button本身。除非你想测试点击...

然后你需要

testRun.addEventListener('click', function(){...});

虽然我仍然建议点击submit，以防用户点击ENTER而不是点击提交按钮。

addeventlistener未在点击/提交时触发

2 个答案: