Javascript 胡须条件和循环
以下是资源: JSONJavascript 胡须条件和循环,javascript,ruby-on-rails,mustache,Javascript,Ruby On Rails,Mustache,以下是资源: JSON { "badges":{ "unlocked": [ {"name": "Win 1"}, {"name": "Win 2"}, {"name": "Win 3"} ], "locked":[ {"name": "Lose 1"}, {"name": "Lose 2"}, {"name": "Lose 3"} ] } } 算法 {{ if_has_badges
{
"badges":{
"unlocked": [
{"name": "Win 1"},
{"name": "Win 2"},
{"name": "Win 3"}
],
"locked":[
{"name": "Lose 1"},
{"name": "Lose 2"},
{"name": "Lose 3"}
]
}
}
算法
{{ if_has_badges }}
<div class="badges">
<h1>Badges</h1>
{{ if_has_badges_unlocked }}
<div class="badges-unlocked">
<h2>Unlocked!</h2>
{{ loop_badges_unlocked }}
<a href="#" class="badge">
<strong>{{ name }}</strong>
</a>
{{ end_loop_badges_unlocked }}
</div>
{{ end_if_has_badges_unlocked }}
{{ if_has_badges_locked }}
<div class="badges-locked">
<h2>Locked!</h2>
{{ loop_badges_locked }}
<a href="#" class="badge">
<strong>{{ name }}</strong>
</a>
{{ end_loop_badges_locked }}
</div>
{{ end_if_has_badges_locked }}
</div>
{{ end_if_has_badges }}
{{如果你有徽章}
徽章
{{如果你的徽章被解锁}
解锁!
{{loop_徽章{u解锁}}
{{end_loop_徽章_unlocked}}
{{结束{如果{你的徽章}
{{如果你的徽章被锁上了}
锁上了!
{{loop_-badges_-locked}}
{{end_loop_徽章_locked}}
{{结束}如果}有}徽章}
{{如果你有徽章就结束}
如何编写此算法以使用Mustache编译器
我需要从两方面着手,第一是RubyOnRails应用程序,第二是客户端(JavaScript)。有两种解决方案 使用选择和反向选择 以下是小胡子文档中的一个示例:
{
"repos": []
}
模板:
{{#repos}}<b>{{name}}</b>{{/repos}}
{{^repos}}No repos :({{/repos}}
正如你所看到的,让我来做条件逻辑。在您的情况下,它看起来像:
Json:
胡子:
<div class="badges-unlocked">
{{#anyBadges}}
<h2>Unlocked!</h2>
{{/anyBadges}}
{{#badges_unlocked}}
<a href="#" class="badge">
<strong>{{ name }}</strong>
</a>
{{/badges_unlocked}}
{{{任何徽章}
解锁!
{{/anyBadges}
{{{徽章解锁}
{{/badges_unlocked}
不要在无逻辑模板中执行逻辑
这就是我要做的。如果你的胡子模板中有条件逻辑,我认为你做错了。您可以使用在这方面更高级的方法,或者将您的逻辑移到其他地方(到javascript)
请参见最好的答案(对于Ruby和JavaScript)是将您的逻辑(如果您有_徽章,请参见类型问题)封装到视图类中
实际上,您可以通过使用arraylength
属性来伪造Ruby和JavaScript中所需的一点点逻辑:
{{# badges.length }}
<div class="badges">
<h1>Badges</h1>
{{# badges.unlocked.length }}
<div class="badges-unlocked">
<h2>Unlocked!</h2>
{{# badges.unlocked }}
<a href="#" class="badge">
<strong>{{ name }}</strong>
</a>
{{/ badges.unlocked }}
</div>
{{/ badges.unlocked.length }}
{{# badges.locked.length }}
<div class="badges-locked">
<h2>Locked!</h2>
{{# badges.locked }}
<a href="#" class="badge">
<strong>{{ name }}</strong>
</a>
{{/ badges.locked }}
</div>
{{# badges.locked.length }}
</div>
{{/ badges.length }}
{{{#badges.length}
徽章
{{{#徽章.unlocked.length}
解锁!
{{{#徽章.解锁}
{{/badges.unlocked}
{{/badges.unlocked.length}
{{{#徽章.locked.length}
锁上了!
{{{#徽章.锁定}
{{/badges.locked}
{{{#徽章.locked.length}
{{/badges.length}
但这样做有点肮脏…肮脏但有效:)这里的答案类似:
<div class="badges-unlocked">
{{#anyBadges}}
<h2>Unlocked!</h2>
{{/anyBadges}}
{{#badges_unlocked}}
<a href="#" class="badge">
<strong>{{ name }}</strong>
</a>
{{/badges_unlocked}}
{{# badges.length }}
<div class="badges">
<h1>Badges</h1>
{{# badges.unlocked.length }}
<div class="badges-unlocked">
<h2>Unlocked!</h2>
{{# badges.unlocked }}
<a href="#" class="badge">
<strong>{{ name }}</strong>
</a>
{{/ badges.unlocked }}
</div>
{{/ badges.unlocked.length }}
{{# badges.locked.length }}
<div class="badges-locked">
<h2>Locked!</h2>
{{# badges.locked }}
<a href="#" class="badge">
<strong>{{ name }}</strong>
</a>
{{/ badges.locked }}
</div>
{{# badges.locked.length }}
</div>
{{/ badges.length }}