I now use the angularjs2 framework, typescript + File-Saver to download the table data on the screen and save it to excel function onDownload (data) { const blob = new Blob ([$( - sharptable ). Html ()], { type: application vnd.ms-excel; }); s...
how does the echarts area Zoom restore button fall back to its original value instead of stepping back step by step ...
I want to use Directive as a public instruction. When the mouse clicks on the target element, the content of a component is displayed, and the mouse leaves and disappears. currently I insert the component with ViewContainerRef when I click. but the in...
some scenarios are encountered during the development process using the angular4 framework. for example: there is a global drop-down list in the common component, and every time the value of the drop-down list changes, all activated subcomponents change...
I have now drawn a map using typescript + Angularjs2 + amcharts how can I invalidate click events in each area of the map are there any attributes that can be controlled? this.chart= this.AmCharts.makeChart ( chartdiv , {) type : map , ...
Code parent component html: < ng-container * ngComponentOutlet= "switchComponent " > < ng-container > ts: public switchComponent = null; constructor () { this.switchComponent = PatientRecordComponent; } subcomponents < div * ngif= "false " ...
for example, now you need to jump between different projects, the backend is not allowed, and the second project needs to get the information of the first project ...
import { Component, ElementRef, OnInit, ViewChild } from @angular core ; import { Router } from @angular router ; import { NzModalService } from ng-zorro-antd ; import { NgForm } from @angular forms ; @Component({ selector: list , tem...
Jump method: _ this represents the component instance _this.router.navigate([ analysis examdetail ], { queryParams: _this.params }); in the new route: constructor(private route: ActivatedRoute, private mrequest: M...
as above, I want to change jobs in the next recruitment season. I want to learn ng, from the needs of companies in the market, but it is very difficult. I don t know which version to read first. In fact, I have read the tutorials of angular5 and have so...
what is the event property of switching tab when using angularjs2-tabs? < tabs > <tab tabTitle="AAA">Content for Tab 1< tab> <tab tabTitle="BBB">Content for Tab 2< tab> < tabs > I tried (click), which tr...
[(ngModel)]: what I understand is that it can achieve two-way binding of user input and data, similar to the function of v-model in vue; my operation: I have done a heroic component case of the angular2 tutorial, and finally I can change the heroic nam...
how can angular2 be compatible with ie8 browsers ...
app.component.ts import { Component } from @angular core ; import { AppService } from . service app.service ; @Component({ selector: app-root , templateUrl: . app.component.html , styleUrls: [ . app.component.css ] }) export clas...
need to introduce url-search-params, a third-party npm package, into the project. How should I introduce it? ...
in angular2, onChange is called when the immutable value changes, so how can it be detected when the mutable value changes, such as changing the Object,Array, or what rxjs method can solve. ...
recently in learning angular, it should be said that angular2, because he learned vue, before coming into contact with angular, always compares the relationship between the two in the learning process, contrasts with each other to learn and use, using tw...
list is the current checkbox array, and ary is the selected checkbox array bug the apple is selected when initialization comes in, but I haven t dealt with the fact that my ary is empty. when I click on the pear, the status of the pear in the ...
use jsmind to build ideas on angular2! Dimension map, how to use data binding ngFor picture description on the node joined by jm.add_node...
now the three-level cascade select has been done, but it is found that the change event will not be triggered when assigning values in onInit. How do you handle it in use? ...
the time selected by the datepicker tag of angular material is month, day and year. I hope that format will become day, month and year. Official documents are not feasible at all, and official cases on github cannot be done at all, or I don t understand...
made a websocket chat room. encountered a problem. Where is a better place to keep chat records? Friends list requests the server s chat history interface (that is, to switch chat objects) when clicking Friends , but it doesn t feel right to...
here I abstract the actual business I try to create a class that has the following methods: import types class A: def __init__(self,num): self.num = num self.add_prop(10) -sharp 10 def add_prop(self, n): f...
this happens only when entering Chinese ...
use canvas to generate pictures in Mini Program. There are layouts such as text in the pictures, which are similar to the QR code pictures in Alipay. Does Mini Program have a similar library? ...