has been messing with Tencent Map recently, and then the product manager asked that there are two states of Marker, selected and unselected. When I click on one of the annotations, the style is replaced by the selected style, and if it was previously se...
< H1 > problem description < H1 > I want to make some custom configurations for axios such as axios.c = {} , which is no problem in the original js file but prompts TS2551: Property c does not exist on type AxiosStatic . after migrating t...
problem description use vue+typescript s vue-cli3.0 to build a project and want to share with Wechat. After introducing weixin-js-sdk, import wx from "weixin-js-sdk " in the page. As a result, underfined, is displayed when wx is printed, but in the...
1. Requirements: the page first renders a pile of data (old values), then returns changed data (new values) every 3 seconds, and re-renders the corresponding data on the page (the old values will be overwritten by new values). 2. Problem: if the newly r...
[Environment] cnpm@6.0.0 npm@6.4.1 node@10.11.0 (C:Program Filesnodejsnode.exe) npminstall@3.12.0 win32 x64 10.0.17134 registry= ...
recently, I have been using vue+ts to build a project. At first, I used ant-design-vue, on the vue project, but it does not have a version for typescript. Is there any UI framework that can be used in the vue+typescript environment? Want the on the PC s...
in the process of using, there will always be one or two icons that are inappropriate or omitted. At this time, you have to go to Ali to download all the replacement files. Is there a way to add an icon directly and quickly? Or how to modify the code? ...
the company needs me to write a query page with static data to show people. My problem now is that there is no problem with a single conditional query. If my first input is correct, the second input error should not be queried. There are multiple condit...
Why did Angular design two compilation methods for JIT AOT? Why do you provide @ angular platform-browser and @ angular platform-browser-dynamic packages? as we know, Angular provides @ angular compiler and @ angular compiler-cli compiler packages. ...
for example: interface X { a: string } interface Y { X: X } class X implements X { public a: string = } const Y: Y = { X <----- } found that the X attribute reported an error when defining Y, and could not assign type "typeof...
recently, I started to try to learn Angular, using the latest version 6.0.When I was developing, I found that it takes a long time to load every time you modify the code using ng serve in the development mode, no matter when you are doing Demo according...
under normal circumstances, the key name of a javascript object (usually a string whose key name begins with a character) can be in quotation marks. How does javascript handle the key name of an object? Cause us to be so casual, you can add quotation mar...
vue init SimonZhangITer vue-typescript-template my-project templates commands create templates , , tsconfig.json tsconfig.json ...
for example: setTimeout(function(){ $( .abc ).removeClass( a ); },5000); setTimeout(function(){ $( .abc ).removeClass( b ); },3000); The requirement is that if the second setTimeout is e...
recently, after learning ts, to see changes in modules about the ts1.5 version, doesn t quite understand how to distinguish internal modules from external modules. I write declaration files for npm packages installed from npm that are not written ...
about the window.location.href jump page with parameters, the url address parameter value of the page becomes ANONYMOUS, code: let dealerNos = sessionStorage.getItem ( "dealerNo "); get the card number let openIds = sessionStorage.getItem ( "openId...
1. Requirements: suppose the page has a hundred li tags with two states, one is hidden (display:none), the other is displayed on the page (display:block); 2. Question: I want to get the quantity hidden and displayed. Can I traverse it directly? 3. A...
problem description in business development, it is often encountered that certain values are related. the environmental background of the problems and what methods you have tried Environmental background give the simplest example: a country-prov...
vue-cli 3.0.ts file const baseUrl = process.env.NODE_ENV === development ? config.baseUrl.dev : config.baseUrl.pro; prompt [ts] "process " ...
1. Because the page uses a template engine three times, ajax requests data from the same interface three times. 2. Since they all belong to the same interface, I want to request the interface once and cache the data, and then let the template engine get...
when traversing an array using Thymelaf loops in hmlt <div th:each="c : ${blog.categories}"> <span class="label label-primary" th:text="${c}">< span> < div> the display on the page is as follo...
my requirement is that I use workerman to make long links between the front and back ends, and then once a table in mysql has new data, it will send the new data to the front end, and the data sent is an array. How should I implement it? If my descriptio...
recently made a mini application with android version of chrome. The ordinary version (using ur access) has no problem at all, but once mainfest.json is configured (serviceWorker.js is not configured), after homescreen establishes the app icon, the sock...
1. In the hadoop environment built, datanode uses private network ip (172.16.1.142172.16.1.148), and only 142nodes activate external network ip . 2. The data on the HDFS is obtained remotely through Java, and the datanode address returned to the Java p...
Boss ask for advice! I use python+selenium to crawl the elements of a website. There are about 50 rows of data in total, but the 18th line of data is empty after the crawl result is put into the Excel file. then modify the content of the data,...