Javascript 玉石选择字段填充数据
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原文地址: http://stackoverflow.com/questions/10362959/
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Jade select field populating data
提问by Risto Novik
Is there any better ways to populate Jade based select fields, I am currently using this example. Is there any better ways to not ruin the template code?
有没有更好的方法来填充基于 Jade 的选择字段，我目前正在使用这个例子。有没有更好的方法来不破坏模板代码？
the item value is 'day' example.
项目值是“天”示例。
select
repeation = [ 'no-repeat', 'day', 'week', 'month']
for item in repeation
if job.repeat == item
option(selected="true") #{item}
else
option #{item}
Also what about displaying multiple selections, when the item is array of ['day', 'week']?
另外，当项目是 ['day', 'week'] 数组时，如何显示多个选择？
// Edit small possible solution for multiple element
// 编辑多个元素的小可能解决方案
enginges = [ 'google', 'bing', 'yahoo', 'duckduckgo']
for engine in enginges
option(selected=job.sources.indexOf(engine) != -1) #{engine}
回答by AntelopeSalad
You should be able to do something like:
您应该能够执行以下操作：
for item in repeation
option(selected=job.repeat == item) #{item}
The same concept should be able to be applied to a multiple item select drop down.
相同的概念应该能够应用于多个项目选择下拉列表。
回答by Rico Rodriquez Collins
A couple of things to add to the answer (https://stackoverflow.com/a/10368381/870274):
有几件事要添加到答案中（https://stackoverflow.com/a/10368381/870274）：
"each" is more commonly used now instead of "for"
don't forget the "-" for the line: repeation = [ 'no-repeat', 'day', 'week', 'month'] ,or you will get a compilation error. So the final result would be (same as yours):
select - repeation = [ 'no-repeat', 'day', 'week', 'month'] each item in repeation option(selected=job.repeat == item) #{item}
“each”现在更常用而不是“for”
不要忘记行的“-”：repeat = [ 'no-repeat', 'day', 'week', 'month'] ，否则你会得到一个编译错误。所以最终结果将是（与您的相同）：
select - repeation = [ 'no-repeat', 'day', 'week', 'month'] each item in repeation option(selected=job.repeat == item) #{item}
