<span style="font-family:Microsoft Yahei, Hiragino Sans GB, Helvetica, Helvetica Neue, 微软雅黑, Tahoma, Arial, sans-serif">This time I will bring you a practical case of using wx:for and wx:for-item. What are the <a href="http://www.php.cn/code/10182.html" target="_blank"> precautions</a> for using wx:for and wx:for-item? The following is a practical case, let’s take a look. </span>
<span style="font-family:Microsoft Yahei, Hiragino Sans GB, Helvetica, Helvetica Neue, 微软雅黑, Tahoma, Arial, sans-serif">z</span>wx:for="{{list}}"
is used to loop the array, and list is For the array name wx:for-item="items"
is used to define the variable of each element during a loop. If it is
is looped out as follows: <view>
{{index}} {{item.name}}
</view>
In the above code, item is the alias of list.
If it is a two-dimensional or even
multi-dimensional array, loop as follows: <view>
{{item.id}}
<view>
{{items.name}}{{item.account}}
</view>
</view>
for (var i = 0 ; i
is equivalent to
<view></view>
Remember: wx:for is a loop array , wx:for-item is to assign an alias to the list
The following are several incorrect uses, please use them with caution:
1. Use wx:for-item directly, so the loop will not come out List
<view> {{index}} {{item.name}} </view>
2. Use wx:for-item with caution in sub-loops
<view> {{item.id}} <view> {{items.name}}{{items.account}} </view></view>
Correct usage of wx:for and wx:for-item in WeChat applet
wx :for="{{list}}" is used to loop the array, and list is the array name wx:for-item="items" is used to define the variables of each element during the loop
If it is a one-dimensional array, it is looped out as follows:
<view> {{index}} {{item.name}} </view>
In the above code, item is the alias of list.
If it is a two-dimensional or even multi-dimensional array, loop as follows:
<view> {{item.id}} <view> {{items.name}}{{item.account}} </view> </view> for (var i = 0 ; iis equivalent to
<view></view>Remember: wx:for is a loop array, wx:for-item That is to assign an alias to the list
The following are several incorrect uses, please use them with caution:
1. Use wx:for-item directly, so that the list cannot be looped
<view> {{index}} {{item.name}} </view>2. Use wx:for-item with caution in sub-loops
<view> {{item.id}} <view> {{items.name}}{{items.account}} </view></view>I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!
Recommended reading:
How FileReader implements a file readerDetailed explanation of the use of slot sockets in vue components
The above is the detailed content of Practical examples of using wx:for and wx:for-item. For more information, please follow other related articles on the PHP Chinese website!

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