1. Problem description An app based on calling service is being developed. One requirement is to make calls through a list of phone numbers and make two-way recording at the same time (regular customer service phone recording reservation). I used to u...
A very simple project is not created with scaffolding. scenario: there is only one css and one js page, but there are many background images and multiple html files. requires: replace small icons with base64, compression css, js, html, but do not merg...
uses the React-Navigation navigation in RN, and then there is a tab page that uses TabNavigator in the location top , and now the requirement is that there is still a part of the content on the tab page, so how should this part of the content be di...
you need to get a collection of all the id of isCheck = true list: [{ id: 1 , isCheck: false, children: [{ id: 1-1 , isCheck: false, children: null }, { id: 1-2 , isCheck: true, children: null }] }, { id: ...
the sum of the binaries stored in the mode field of the table, why do you find the data record of mode=28 using the query condition where mode & 5? where mode & 5 and where mode & 1 and mode & 4 query results are different, is there a boss to help ...
when installing jdk, you can choose not to install public jre, as shown in the following figure. Because there is already jre in jdk. I haven t installed jre, yet. I haven t found anything wrong yet. I can develop it normally. I would like to ask you ...