an error is reported when using SQLite.swift to use try db.run on existing database tables (table.addColumn (title)) adds a title column. the code is as follows: create a table private func creatTable(filePath: String) { do { db = t...
what is the situation? I use multithreaded Task to grab the data. How can I save the database after capturing the data? The database is sqlite. 1. At first, I want to store the database directly in task, but in the case of multithreading, there will be...
<script> methods $(document).on( refresh , .pull-to-refresh-content , function (e) { this.getList(); getList console.log( 123 ); }); export default { name: "friends", da...
as shown in the figure, have you ever used this directed graph plug-in? the one in the diagram is react-dag (demo address: http: react-dag-app.surge.sh ), but the performance is not very good and the function expansibility is not very good. if you ha...
how the table of iview changes the _ disable state of the current row <Modal v-model="modal" width="50%" :mask-closable="false" @on-cancel="cancel"> <Card v-show="card1" :bordered="false...
like A where a child component needs to access the parent element, I need to use prop after reading the tutorial, but why not use app.A directly in the child component? ...
this.$children.map(item=>{ if(item.list){ let temp = clearCheckItem(item.list) this.$store.commit( SET_MATCHLIST ,[]) this.$store.commit( SET_MATCHLIST ,temp) item.$set(item, list ,...