Detailed explanation of the usage of WeChat applet wx:for and wx:for-item

This article mainly introduces the correct usage of WeChat applet wx:for and wx:for-item. wx:for is a loop array, and wx:for-item is to assign an alias to the list. The article lists a few for you. Wrong usage, let’s learn together

wx:for="{{list}}" is used to loop the array, and list is the array namewx:for-item= "items" is used to define the variables of each element during a loop.

If it is a one-dimensional array, loop it out as follows:

In the above code, item is the alias of list.

If it is a two-dimensional or even multi-dimensional array, loop as follows:

is equivalent to

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 that the list will not appear in the loop

2. Use wx:for- with caution in sub-loops item

The correct usage of WeChat applet wx:for and wx:for-item

wx:for="{{list} }" is used to loop the array, and list is the array name wx:for-item="items" which is used to define the variable of each element during the loop

If it is a one-dimensional array, follow the following The method is looped out:

In the above code, item is the alias of list.

If it is a two-dimensional or even multi-dimensional array, loop as follows:

is equivalent to

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 that the list will not appear in the loop

2. Use wx:for- with caution in sub-loops item

The above is what I compiled for you. I hope it will be helpful to you in the future.

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