javascript - Jquery 获取类 "nodeId"值

Question

我想从字符串中获取值 117。但未能...

当我执行以下操作时，

$(this)

我得到这样的“字符串”

"[Node: <span class='nodeId'>117</span>] <br>bla bla (bla/6)<br>Value: n.a."

进一步推导如下，

$(this).filter('.nodeId').html()

我收到错误...

Uncaught Error: Syntax error, unrecognized expression: [Node: <span class='nodeId'>117</span>] <br>bla bla (bla/6)<br>Value: n.a. 

要求的片段:

var onDeviceMarkerClick = function() {
        var currentNodeIdVal = null;
        var marker = this;
        var markerLat = marker.getPosition().lat();
        var markerLng = marker.getPosition().lng();

        var checkStreetView = new google.maps.LatLng(markerLat,markerLng);
        var svClient = new google.maps.StreetViewService();
        var checkaround = 50;
        svClient.getPanoramaByLocation(checkStreetView, checkaround, function (nearest) {
        if (nearest !== null){ 
            var nodeIdString = marker.title;
            var checkThisVal = $(nodeIdString).filter('.nodeId').html();
            console.log(checkThisVal); // Here I got the error

        //More to go

有人吗？

Answer 1

如果 HTML 的 jQuery 格式不正确(例如，不是以 <> 元素开头)，您需要先将其包装(例如，在虚拟 div 元素中)

JSFiddle:http://jsfiddle.net/TrueBlueAussie/vme0us9s/1/

var nodeIdString = marker.title;

// Create a new DIV and insert the content
var $div = $('<div>').html(nodeIdString);

var checkThisVal = $div.find('.nodeId').text();

alert(checkThisVal);  // Alerts 117