Javascript backbone.js可以';在脚本中找不到错误
我不熟悉javascript和backbone.js 我想创建一个简单的网页,有10个正方形,形状将采用正方形id和颜色 所以每个方块在CSS中都必须有自己的风格 我试着用10个模板制作它。但脚本根本不起作用 这是我的密码:Javascript backbone.js可以';在脚本中找不到错误,javascript,jquery,css,backbone.js,Javascript,Jquery,Css,Backbone.js,我不熟悉javascript和backbone.js 我想创建一个简单的网页,有10个正方形,形状将采用正方形id和颜色 所以每个方块在CSS中都必须有自己的风格 我试着用10个模板制作它。但脚本根本不起作用 这是我的密码: alert("script entry"); $(function () { blocks = [ {number: "1", state: "block1" }, {number: "2", state: "block
alert("script entry");
$(function () {
blocks = [
{number: "1", state: "block1" },
{number: "2", state: "block2" },
{number: "3", state: "block3" },
{number: "4", state: "block4" },
{number: "5", state: "block5" },
{number: "6", state: "block6" },
{number: "7", state: "block7" },
{number: "8", state: "block8" },
{number: "9", state: "block9" },
{number: "10", state: "block10" },
];
var BlockModel = Backbone.Model.extend({
defaults:{
"state": "block1",
"number": "1"
}
});
var BlockCollection = Backbone.Collection.extend({
model: BlockModel,
});
var blockNumbers = new BlockCollection([
model:BlockModel
]);
var BlockView = Backbone.View.extend({
tagName: "blockTag",
className: "blockClass",
templates: {
"block1": _.template($('#block1').html()),
"block2": _.template($('#block2').html()),
"block3": _.template($('#block3').html()),
"block4": _.template($('#block4').html()),
"block5": _.template($('#block5').html()),
"block6": _.template($('#block6').html()),
"block7": _.template($('#block7').html()),
"block8": _.template($('#block8').html()),
"block9": _.template($('#block9').html()),
"block10": _.template($('#block10').html())
},
render: function () {
var state= this.model.get("state");
var tmpl = this.templates(state);
$(this.el).html(tmpl(this.model.toJSON()));
return this;
}
});
var appView = Backbone.View.extend({
el: $("#block"), //большой контейнер
initialize: function(){
this.collection = new blockNumbers(blocks);
this.render();
},
render: function(){
_.each(this.collection.models, function () {
that.renderBlock(this.model);
}, this);
},
renderBlock: function (inputModel) {
var blockView = new BlockView({
{model: inputModel}
});
this.$el.append(blockView.render().el);
}
});
var app = new appView();
});
我的错误在哪里?
我的index.html
:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>TEST</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id="block">
<script type="text/template" id="block1">
<div class="block1"><%=number%></div>
<div class="buttonplace">
<input type="button" value="check" />
</div>
</script>
<script type="text/template" id="block2">
<div class="block2"><%=number%></div>
</script>
<script type="text/template" id="block3">
<div class="block3">3</div>
</script>
<script type="text/template" id="block4">
<div class="block4">4</div>
</script>
<script type="text/template" id="block5">
<div class="block5">5</div>
</script>
<script type="text/template" id="block6">
<div class="block6">6</div>
</script>
<script type="text/template" id="block7">
<div class="block7">7</div>
</script>
<script type="text/template" id="block8">
<div class="block8">8</div>
</script>
<script type="text/template" id="block9">
<div class="block9">9</div>
</script>
<script type="text/template" id="block10">
<div class="block10">10</div>
</script>
</div>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="underscore.js"></script>
<script type="text/javascript" src="backbone.js"></script>
<script type="text/javascript" src="script.js"></script>
</body>
</html>
试验
3.
4.
5.
6.
7.
8.
9
10
您已在上面定义了一个对象
var tmpl = this.templates(state);
但你把它叫做函数
您可以通过this.templates[state]获取模板代码>
更新
我认为您可以使用与以下相同的模板:
<script type="text/template" id="block">
<div class="block<%=number%>"><%=number%></div>
<div class="buttonplace">
<input type="button" value="check" />
</div>
</script>
不是:
更新
blockNumbers
是一个集合实例,您不能通过new
为其获取数据,例如:
this.collection = new blockNumbers(blocks);
您应该将bolckNumbers
分配给this.collection
,并给它一个url,然后调用sync()
或fetch()
获取数据,然后呈现它
结束
最后,我发现上面的基础知识有太多错误,Backbone.js很简单但很难,你应该能够自己解决它,它对你很有用
谢谢 您的代码有几个问题,主要是在某些情况下使用括号而不是方括号[
和大括号{
。您还有一些额外的尾随逗号。此外,在HTML中,块div的结束标记应该在所有脚本模板之前
比如说
var blockNumbers = new BlockCollection([
model:BlockModel
]);
应该是
var blockNumbers = new BlockCollection({
model:BlockModel
});
及
应该是
var tmpl = this.templates[state];
此外,在appView中,您正在尝试实例化实例的新实例
this.collection = new blockNumbers(blocks);
虽然你可能是有意的
this.collection = new BlockNumbers(blocks);
这是一张工作票
除了模板的大量重复之外,您还可以将它们整合到一个或两个模板中
例如,您可以只为带按钮的块创建一个模板,为不带按钮的块创建一个模板,并相应地更新块状态
<script type="text/template" id="blockWithButton">
<div class="block<%=number%>"><%=number%></div>
<div class="buttonplace">
<input type="button" value="check" />
</div>
</script>
<script type="text/template" id="blockWithoutButton">
<div class="block<%=number%>"><%=number%></div>
</script>
另一个您得到的错误是什么?只有脚本不会run@Jack指出(比我快;-))一些可能对您有帮助的好事情。此外,您可能想看看这个TODO示例。可能会在一些技巧上启发您。。。
var tmpl = this.templates[state];
this.collection = new blockNumbers(blocks);
this.collection = new BlockNumbers(blocks);
<script type="text/template" id="blockWithButton">
<div class="block<%=number%>"><%=number%></div>
<div class="buttonplace">
<input type="button" value="check" />
</div>
</script>
<script type="text/template" id="blockWithoutButton">
<div class="block<%=number%>"><%=number%></div>
</script>