我使用以下Javascript來製作一種用戶通過一組問題點擊的流程圖。對於某些回覆,我想鏈接到可以找到更多信息的外部網站。我如何添加這些鏈接?如何在javascript中添加鏈接
HTML
<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<div class="wrapper">
<div class="container">
<div class="row">
<div class="col-xs-12 text-right">
<button class="btn btn-default btn-corner" type="submit" data-bind="click: startOver, visible: queryData().id > 0">Start over</button>
</div>
</div>
</div>
<div class="container main">
<div class="row">
<div class="c12 text-center">
<h1 data-bind="text: queryData().text"></h1>
<h3 data-bind="text: queryData().subhead"></h3>
<div class="option-group" data-bind="foreach: queryData().answers">
<button class="btn btn-default btn-lg" type="submit" data-bind="click: $parent.goToTarget, text: text"></button>
</div>
<button class="btn btn-default" type="submit" data-bind="click: stepBack, visible: navHistory().length > 1">Previous Step</button>
</div>
</div>
</div>
<div class="push"></div>
</div>
<script src="http://ajax.aspnetcdn.com/ajax/knockout/knockout-3.3.0.js"></script>
<script src="app.js?v=0.4.0"></script>
<script>
</script>
</body>
</html>
的JavaScript如下:
JS
var queries = [{
id: 0,
text: "Where to start?",
answers: [{
text: "Let's Begin!",
target: 1
}]
}, {
id: 1,
text: "Which genre do you want to start in?",
answers: [{
text: "Fantasy",
target: 100
}, {
text: "SciFi",
target: 2
}, {
text: "Neither",
target: 59
}]
}, {
id: 2,
text: "It's huge but it's worth it. The Cryptonomicon by Neal Stephenson",
answers: [{
text: "Amazon.co.uk",
target: "_blank"
}, {
text: "Amazon.com"
}]
}];
function QueryViewModel() {
var self = this;
self.querySet = ko.observable();
self.currentStep = ko.observable();
self.queryData = ko.observable();
self.sfw = ko.observable();
self.navHistory = ko.observableArray();
// Operations
self.goToTarget = function(obj) {
self.navHistory.push(self.currentStep());
self.currentStep(obj.target);
self.queryData(self.querySet()[obj.target]);
}
self.startOver = function() {
self.navHistory.removeAll();
self.goToTarget({target: 0});
}
self.stepBack = function() {
var lastStep = self.navHistory().length > 1 ? self.navHistory.pop() : 0;
self.currentStep(lastStep);
self.queryData(self.querySet()[lastStep]);
}
var paramsString = document.location.hash.substring(1);
var params = new Array();
if (paramsString) {
var paramValues = paramsString.split("&");
for (var i = 0; i < paramValues.length; i++) {
var paramValue = paramValues[i].split("=");
params[paramValue[0]] = paramValue[1];
}
}
params ? paramTarget = params['target'] : params = [];
self.sfw() ? self.querySet(queriesSFW) : self.querySet(queries);
if (paramTarget) {
self.navHistory.push(0);
self.currentStep(0);
self.goToTarget({target: paramTarget})
} else {
self.goToTarget({target: 0});
}
}
ko.applyBindings(new QueryViewModel());
這只是json數據部分。請使用您正在使用的html和js更新問題。 –
@AndrewL。這不是'json',它是一個對象字面值:P –
@william clarke you * do *意識到這個'var self = this;'是無稽之談?您在關閉括號'}後繼續引用它。我不明白這一點。在瀏覽器中,'self'是'window'對象,但我不確定這是否是您想要的代碼。 – Azamantes