How does WeChat Mini Programs realize the search input box with search records
This article mainly explains "WeChat Mini Programs how to achieve the search input box with search records", interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Next let the editor to take you to learn "WeChat Mini Programs how to achieve the search input box with search records" bar!
There is a requirement in the recent project, that is, you need an input box with search records, but you don't need to use the background, so you think of using the local cache setStorageSync.
Summarize the points you need to pay attention to:
1. Reverse the search time.
Unshift: insert data in front of the array and change the array.
2. When spaces are added before and after the search content.
String.trim (); / / remove the spaces before and after
3. Maximum number of search records to be cached.
/ / if there are more than 8 search records, delete the oldest one
If (searchData.length > = 8) searchData.pop ()
/ / pop: deletes the last element of the array.
4. Enter the content that the search record already has.
/ / delete the search record first, and then add the element to the first place
/ / if there are duplicates in the search record, delete it.
For (let I = 0; I < searchData.length; iTunes +) {
If (searchData [I] = = this.data.inputValue.trim ()) {
SearchData.splice (iPol 1)
Break
}
}
/ / add search record
SearchData.unshift (inputValue.trim ())
Only the key code has been uploaded. If you have bug, please check it and modify it. It should not be a big problem.
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