• Front end interview 3 + 1 Daily – 293 days


    Today’s knowledge (February 3, 2020) – day 293 How to replace the default image when the Src in [HTML] img fails to load? [CSS] for example, what are the attributes related to fonts? [JS] read the following code about setTimeout and promise, and what will be output? Why? [soft skills] please explain the difference between […]

  • Front end interview 3 + 1-day 213


    Today’s knowledge (November 15, 2019) – day 213 [HTML] what’s the way to set the background color for cells of a single table? [CSS] have you ever used VW layout? What’s the difference with REM? [JS] write a method to check whether all tags in the page are closed correctly [soft skills] do you know […]

  • Front end interview 3 + 1-day 215


    Today’s knowledge (November 17, 2019) – day 215 (I also want to work out the topic) [HTML] have you ever used marquee? [CSS] how to make picture width adaptive? [JS] maximize and minimize windows with JS [soft skills] our company usually organizes badminton activities. Do you like playing badminton? How’s it going? In the Analects […]

  • Reactor series (12) window nesting


    java#reactor#flux#window Flux nesting Video commentary: https://www.bilibilili.com/video/av80458406/FluxMonoTestCase.java package com.example.reactor; import lombok.extern.slf4j.Slf4j; import org.junit.jupiter.api.Test; import reactor.core.publisher.Flux; @Slf4j public class FluxMonoTestCase extends BaseTestCase { @Test public void window(){ // one-dimensional Flux Flux<String> stringFlux1 = Flux.just(“a”,”b”,”c”,”d”,”e”,”f”,”g”,”h”,”i”); // two-dimensional Flux Flux<Flux<String>> stringFlux2 = stringFlux1.window(2); stringFlux2.count().subscribe(System.out::println); // 3D Flux Flux<Flux<Flux<String>>> stringFlux3 = stringFlux2.window(3); stringFlux3.count().subscribe(System.out::println); } } Pay attention to the official […]

  • Execution plan and cache of SAP ABAP SQL


    I execute this open SQL in se38: Because I don’t use ignore? Plan? Cache in open SQL, Therefore, the execution plan will be stored in table m SQL plan cache. The preparation “time field of this table contains the preparation time of the statement. For more original articles on Jerry, please pay attention to the […]

  • Daily question of JS algorithm question-4. Rotation array


    The official account of WeChat:Drunk front endPay attention to learn more problem solving skills. For official account, please leave a message. subject Given an array, move the elements of the array K places to the right, where k is a non negative number. Example 1: Input: [1,2,3,4,5,6,7] and K = 3 output: [5,6,7,1,2,3,4] Interpretation:Rotate 1 […]

  • Front end interview 3 + 1-346 days a day


    Today’s knowledge (March 27, 2020) – day 346 [HTML] for example, what is the role of anchor location? [CSS] use CSS to draw the timescale of a clock [JS] write a method to get the value (one or two) in the middle of the specified array [soft skills] how to migrate the warehouse while retaining […]

  • Front end interview 3 + 1-day 217


    Today’s knowledge (November 19, 2019) – day 217 (I also want to work out a question) After the [HTML] page is loaded, how does the first text box of the form get the focus automatically? [CSS] for example: what are the usage scenarios of not() [JS] give an example to show how JS can create […]

  • Cache design mechanism of SAP hybrid platform and NetWeaver


    Hybris Cache (1 )The Hybris Cache is a part of the Hybris persistence layer.(2) It improves the performance of a single server node by reducing the amount of database queries.(3) It transparently stores search results, item attributes, and item instances in memory. The purpose of hybridis cache is to reduce the access to DB layer […]

  • Realization of wechat joke telling robot based on flask and reptile


    Introduction: This course is based on the Flask Web framework, which is developed by the WeChat official account of the entertainment level. It is learning and practicing the basic steps of Python programming, Flask Web development and WeChat public platform development robot. This tutorial is published in the experimental building by bulabean. The complete tutorial […]

  • Webflux series (I) HelloWorld


    Java? Spring? Web plus? Getting started? Programming Basic application of spring Webflux Web Video Explanation: https://www.bilibili.com/videoWebfluxApplication.java package com.example.webflux; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.http.MediaType; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import reactor.core.publisher.Flux; @SpringBootApplication public class WebfluxApplication extends BaseApplication{ public static void main(String[] args) { SpringApplication.run(WebfluxApplication.class, args); } @RestController class EmployeeController{ @GetMapping(value = “greeting”,produces = MediaType.TEXT_EVENT_STREAM_VALUE) public Flux<String> […]

  • Front end interview 3 + 1 Daily – 325th day


    Today’s knowledge point (March 6, 2020) – day 325 (I also want to write a question) How to call the HTML 5 + Plus object in a normal web page? [CSS] how to disable moving selection highlighting? [JS] what are the differences between commonjs module and ES module? [soft skills] how about your English? Can […]