there is an array cateogoryList in the defined Schema: const mongoose = require( mongoose ); const Schema = mongoose.Schema; const ProductCateogorySchema = new Schema({ user:{ type:Schema.Types.ObjectId, ref:"users...
there are system An and system B. system An owns database An independently, and system B owns database B. system An and system B share a set of user information database, database C. Database C stores all the information about the user, such as name...
after reading this article (introducing schema in the database) https: www.biaodianfu.com da., it is mentioned that the schema in MySQL is the same as the library. Is this correct? Thank you ....
what I want to ask is what the client and server transmit when they establish a Https connection, which deepens my impression on my understanding of the Https establishment process. what should I do to see Client Hello and Server Hello and som...
here is a mall decoration function, you can add different functional types of components, components can appear in different locations according to the location of the plus sign, and click to save and refresh. No, no, no. Like the natural flow, the posit...
I am running powershell: Get-NetIPInterface : using my administrator identity. PS C: Users Administrator> Get-NetIPInterface "Get-NetIPInterface " cmdlet :1 : 19 + Get-NetIPInterface <<<< + CategoryInfo : ObjectNotFo...
if (type= "cut ") { if(cartData[index].counts>1){ console.log( fk ); cartData[index].counts-=count; } console.log(count); console.log(cartData[index].counts); } console.log(cartData); it turns out that if ...
< keep-alive: max= "30 " > <template v-if="tab.name===activeName"> <component v-bind:is="currentTabComponent" v-bind="currentTabComponent.defaults">< component> &l...