jade-for-each-while

if else还是for循环,在jade里面都是可执行的代码

 

for循环
- var lession = {course:'jade', level:'high'}
- for (var k in lession)
  p= lession[k]
=>
<p>jade</p>
<p>high</p>

 

each
- each value,key in lession
  p #{key}: #{value}
=>
<p>course: jade</p>
<p>level: high</p>
这个each里面的前面-可加可不加
each value,key in lession
  p #{key}: #{value}
=>
<p>course: jade</p>
<p>level: high</p>

 

除了循环对象,还可以循环数组

- var course = ['node', 'jade', 'express']
- each item in course
  p= item
- for (var item in course)
  p= course(item)
=>
<p>node</p>
<p>jade</p>
<p>express</p>
<p>node</p>
<p>jade</p>
<p>express</p>

要用这种in的形式,不能用for(item=0; item<course.lenght; item++)这种



嵌套循环
- var sections = [{id:1,items:['a','b']},{id:2,items:['c','d']}]
dl
  each section in sections
  dt= section.id
    each item in section.items
    dd= item
=>
<dl>
  <dt>1
    <dd>a</dd>
    <dd>b</dd></dt>
  <dt>2  
    <dd>c</dd>
    <dd>d</dd></dt>
</dl>

 

 

while
- var n = 0
ul
  while n<4
  li=n++
=>
<ul>
  <li>0</li>
  <li>1</li>
  <li>2</li>
  <li>3</li>
</ul>

 

 

posted @ 2018-07-06 06:40  wzndkj  阅读(772)  评论(0编辑  收藏  举报