nested

问题 I have a nested structure read from YAML which is composed of nested lists and/or nested dicts or a mix of both at various levels of nesting. It can be assumed that the structure doesn't contain any recursive objects. How do I extract from it the leaf values only? Also, I don't want any None value. The leaf values contain strings which is all I care for. It's okay for recursion to be used, considering that the maximum depth of the structure is not large enough to exceed stack recursion limits

问题 I am trying to process some XML that has nested elements into HTML where each processed element is within tags so that I can show and hide divs using JavaScript based on the user pressing a Next link. I am having problems because the tag for the parent is being placed after the for the 2 children. This is causing an issue because I cannot hide the parent to show the children. here is the XML snippet I am starting with: <mainProcedure> <proceduralStep id="pstp1"> <para>Some text to display 1<

问题 I am trying to process some XML that has nested elements into HTML where each processed element is within tags so that I can show and hide divs using JavaScript based on the user pressing a Next link. I am having problems because the tag for the parent is being placed after the for the 2 children. This is causing an issue because I cannot hide the parent to show the children. here is the XML snippet I am starting with: <mainProcedure> <proceduralStep id="pstp1"> <para>Some text to display 1<

问题 Using VS 2008, I have a Repeater control with nested elements and want to select one of them (the checkboxes) with jquery. <asp:Repeater runat="server" ID="storesRep" DataSourceID="storeSqlDataSource" OnItemDataBound="StoresRep_ItemDataBound"> <ItemTemplate> <table style="padding:0px"> <tr> <td style="width:200px"><asp:Label ID="infoLbl" runat="server">Choose stores for upload:</asp:Label>    </td> <td style="width:110px"><asp:Label ID="storeLbl" runat="server" Text='<%# Bind("Name") %>'><

问题 I have two models (lets call then A and B ). A has_many b s and B belongs_to A . class A < ApplicationRecord has_many :bs, dependent: :destroy, inverse_of: :a accepts_nested_attributes_for :bs, reject_if: :all_blank, allow_destroy: true validates_associated :bs end class B < ApplicationRecord belongs_to :a, inverse_of: :bs before_update :do_something, unless: Proc.new { |b| b.a.some_enum_value? if a } def do_something self.some_field = nil end end Other than that, B has a before_update

问题 I need to be able to combine this into one function. There are 2 separate arrays... {this.state.telephoneType.map((telephoneType, ttidx) => ())} and... {this.state.telephone.map((telephone, tidx) => ())} Basically, this is because I have a button which concatenates the 2 functions and it has to be outside the row class (MDBRow) so the UI doesn't break. <MDBRow className="grey-text no-gutters my-2"> {this.state.telephoneType.map((telephoneType, ttidx) => ( <MDBCol md="4" className="mr-2">

问题 I'm filling a Kendo data grid from nested JSON by this way: https://stackoverflow.com/a/24441318/535556 Everything works fine until I click on the "Add new row" button. Then I receive a console error message: "Uncaught TypeError: Cannot read property 'street' of undefined " I would like to ask how to format the data properly to obtain nested JSON object with updated data? Many thanks for any advice. 回答1: When you add a new row without having defined a schema model for the dataSource, the

问题 I'm having a little trouble with a query in Java on a MongoDB. I have the follow structure in the database: { "_id" : ObjectId("5059c214707747cbc5819f6f"), "id" : "7", "title" : "test4", "keywords" : "keyword 1, keyword 2", "partner" : { "id" : "1", "name" : "partner", "keywords" : "partner keyword 1, partner keyword 2" }, "status" : { "id" : "0", "name" : "Expired" }, "modified" : "2012-09-27" } I want the query the database for the field 'Status.name', example SELECT * FROM table WHERE

问题 I'm trying to find a whole document with Find() command and filter a nested array with a condition. Here a piece of the used Schema : var ListSH = new Schema({ name: { type: String, unique: true, required: true}, subject : String, recipients : [ Schema({ uid : { type : ObjectId, required : true, ref:'User', unique: true}, status : { type : Number, default : 1 } },{_id: false}) ] }; Currently I do ListModel.findOne({ _id : req.params.id_list, function(err,list){...}; And Postman give me that:

问题 Is it possible to nest variable calls like below in EL using FacesContext or other implicit objects like request , session , etc.? This of course is not working. I get this error Error Parsing: #{myBean.myMethod(#{FacesContext.getCurrentInstance().getViewRoot().getViewId() })} for this attempt <ui:include src="#{myBean.myMethod(#{FacesContext.getCurrentInstance().getViewRoot().getViewId() })}"> 回答1: This is indeed invalid EL syntax. Nesting of #{} is disallowed. Just put the whole expression