Strange behavior of the neutral network written in plain JS

问题: Impressed by the possibilities of neural networks, I've decided that before using any library I want to understand how they work. So I wrote a simple training app, which us...

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  • 发布于 2019-01-07 17:37
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Reactjs: unfocusing a button element using .blur()

问题: I'm having a little issue whilst learning react - I'd like to unfocus (a.k.a blur()) a button DOM element, but for some reason this isn't quite working. I think the issue...

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  • 发布于 2019-01-07 17:37
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capture file into javascript variable instead of downloading it

问题: I am writing a app that visits a web site that can give me a link to a file, like this: http://www.thrustcurve.org/download.jsp?id=2199 If I visit this link, a small text...

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  • 发布于 2019-01-07 17:37
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<iframe> makes browser running forever

问题: Here is my document: <!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>iframe test</title> </head> &lt...

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  • 发布于 2019-01-07 17:37
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Selecting maximum record

问题: I would like my query to only return count of chart points when the maximum chart version of each chart id is chart type Q. I want it to only count when it is chart type Q....

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  • 发布于 2019-01-07 17:36
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Mysql Code To Mark New And Duplicate Values

问题: I have a mysql table (shown below) with some values, I need to get the new values and duplicate values I tried SELECT *,COUNT(SerialNumber) FROM config_log GROUP BY Seria...

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  • 发布于 2019-01-07 17:36
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MYSQL UPDATE query for multiple values

问题: Looking to update a table from values in another table. The tables are joined on a person's first and last name. The issue is we have duplicate records where we are trying...

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  • 发布于 2019-01-07 17:35
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Is there a functionality in mysql to order by to specific row?

问题: I have a table e.g students: id | name -- |----- 1 | A 2 | B 3 | C 4 | D 5 | E 6 | F 7 | G 8 | H` How to wite a sql in mysql so that first 4 students...

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  • 发布于 2019-01-07 17:35
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java B2B2C Springcloud电子商城系统-通过消息队列传输zipkin日志

一、zipkin服务端配置需要JAVA Spring Cloud大型企业分布式微服务云构建的B2B2C电子商务平台源码 一零三八七七四六二六1.引入依赖//===========消息队列方式的依赖============= //此依赖会自...

java B2B2C Springcloud多租户电子商城系统-spring cloud bus原理总结

1、spring cloud bus  spring cloud是按照spring的配置对一系列微服务框架的集成,spring cloud bus是其中一个微服务框架,用于实现微服务之间的通信。  需要JAVA Spring Cloud大型企业分布...

java B2B2C Springcloud仿淘宝电子商城系统-Zipkin服务端配置

一、引入依赖需要JAVA Spring Cloud大型企业分布式微服务云构建的B2B2C电子商务平台源码 一零三八七七四六二六//起步依赖 compile('org.springframework.cloud:spring-cloud-starter')...

JFormattedTextField do not consider 1,000.00 as thousand but one

问题: I've this code on jAmtTenderedFormattedTextFieldKeyReleased DefaultTableModel defaultTableModel = (DefaultTableModel) jReceivingsTable.getModel(); int id = (Inte...

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  • 发布于 2019-01-07 16:35
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How should I use JpaRepository.findOne() with SpringBoot?

问题: I just started learning Spring Boot by reading the book Spring Boot in Action and I am learning the examples of this book, trying to run them myself but I have a problem us...

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  • 发布于 2019-01-07 16:34
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webkit-scrollbar is not working in chrome

问题: I have below code in my css file : .workarea-view-scroll-wrapper::-webkit-scrollbar { width:0px; background: transparent; } When I open the page in chrome, it...

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  • 发布于 2019-01-07 16:33
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Properly aligning neighboring button in Bootstrap form

问题: I have a search form in my app which uses Bootstrap. It is a vertical form meaning the labels are above the input controls. In my example, I have two inputs and then a "Sea...

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  • 发布于 2019-01-07 16:33
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After upgrading to Gradle 5 and Android Plugin 3.3, my build fails with “Metaspace”

问题: This happened when I upgraded to Gradle 5.0 from 4.10.3, and also the Android Gradle Plugin from 3.2.1 to 3.3.0-rc03 (the latter because it's the first version of AGP to of...

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  • 发布于 2019-01-07 16:32
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Horizontal LinearLayout with three views, middle view should be horizontally centered

问题: I have three items in a horizontal LinearLayout: a TextView, an ImageButton and another TextView. All three are vertically centered. How can I additionally achieve tha...

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  • 发布于 2019-01-07 16:32
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Create Observable with dispose handler rxjava

问题: We want to observe the changes in the size of a view and we create an extension like this: fun View.layoutSizeObservable(): io.reactivex.Observable<Size> { ret...

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  • 发布于 2019-01-07 16:31
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Vue.js swap classs on click

问题: I think this is a simple thing but I'm struggling on trying to understand how I can apply a class to a button and then change to another class after the click. I have multi...

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  • 发布于 2019-01-07 16:30
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Create a firebase style permission hierarchy in mongoDB

问题: New to MongoDB, and working with NodeJS's mongodb package, I am trying to retrieve and update items based on a user's permission levels which are also stored in a collectio...

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  • 发布于 2019-01-07 16:30
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