我将信息发送到包含数组的客户端,我只显示数组的3个元素,因为我希望有一个分页效果。我想在js文件中编写分页代码
在file.js
中$(function(){
$(".pageLinks a").on("click", function(e){
e.preventDefault();
var pageNum = $(this).attr("id")
var test = JSON.stringify(populated) // I wanted populated to be the array from node
//doesn't have to have the stringify part
// I know I can't do this prob bec. it's not in an ejs file but I wanted something like that
console.log(test)
})
})
我可以在ejs文件中访问它
<% var index = Math.floor( populated.reviews.length /3)%>
<div class = "pageLinks">
<%for(var i = 0; i < index; i++){%>
<a href= "<%=i + 1%>" id = "<%=i%>"><%= i + 1 %> </a>
<%}%>
</div>
</div> <!--reviewSide-->
答案 0 :(得分:2)
你是对的,你不能以同样的方式到达(静态)js文件中的原始对象。
但是,您可以将其填充到ejs文件中的全局变量,如下所示:
<script type="text/javascript">
var populated = <%-JSON.stringify(populated)%>;
</script>
然后您可以在点击处理程序中检查,如下所示:
$(function(){
$(".pageLinks a").on("click", function(e){
e.preventDefault();
var pageNum = $(this).attr("id")
if (typeof(populated) != "undefined"){
// you want to check to make sure this exists before trying to use
// it, just in case someone manages to click a page link before the
// code in your .ejs file has run.
var test = JSON.stringify(populated)
console.log(test)
}
})
})
...或者在加载时传递给外部file.js,只要您将某些内容暴露给它可以调用的全局范围即可。您当前的脚本将所有内容包装在匿名函数中,但您可以将其包装在这样的命名函数中:
.ejs文件:
<script type="text/javascript">
initialiseMyAwesomeFunction( <%-JSON.stringify(populated)%> );
</script>
.js文件:
function initialiseMyAwesomeFunction(populated){
$(function(){
$(".pageLinks a").on("click", function(e){
e.preventDefault();
var pageNum = $(this).attr("id")
var test = JSON.stringify(populated)
console.log(test)
})
})
}