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Check if Clipboard.GetImage() is transparent in C#

I think I have a simple problem that seems very hard for me to figure out - how to check if an image I get ... this because the clipboard object cannot see the transparency or .. ?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node.js - Puppeter how to prevent stopping program on error

Directly to the problem that I noticed while creating puppeteer automata. I check if element exists like this: const ... exist or when page.waitForSelector throws a timeout error....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Install RabbitMQ using Wix, and set node name

I'm trying to get an installer working where RabbitMQ is involved. The services and dependencies can all be installed without ... name such that PC name changes don't break it?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mongodb - mongo MongoCursorNotFoundException in long-running query loop

I have a simple query loop that gets a MongoCursorNotFoundException after processing about 44,000 of 96,945 documents in around ... using mongod 4.4 and the latest mongo java api....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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graphql - How does Apollo handle mutation timeouts?

I'm doing research on GraphQL and Apollo Federation in particular. This document has an example ... orchestrating multiple microservices, especially timeouts during mutations?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wordpress - Why does this work outside a plugin's hook, but not inside?

please help me. What am I missing here? I created a plugin that creates a coupon with an order. And with the following, I ... if $single is true, or an empty array if it's false....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - My java program is throwing java.lang.ClassNotFoundException for some AWT classes what do I do?

when I ran the Java debugger, I found this "java.lang.ClassNotFoundException: sun/awt/resources/spi/awtProvider" and "java.io. ... can't find java API classes? how do I fix this?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Form required text field (Mailer,Flutter)

I explain to you I am trying at the moment making it compulsory to fill in information sending the information sent ... (BuildContext context) { // return object of type Dialog...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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xml - How to create the Item node for Product Feed Submission on MWS?

Goal: Complete Submission for _POST_PRODUCT_DATA_ Feed with the alternative Item' (reference Item.xsd) field included and ... Item Node for MWS it would be greatly appreciated....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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problem running react native on emulator and physical device on Windows

I followed all steps here https://reactnative.dev/docs/environment-setup (React Native CLI QuickStart) but nothing helps ... Command npm run android" terminated with exit code: 1....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - Nav bar help: Why is the shape appearing above "home" instead of below

I am trying to build an online portfolio. I want the gradient shape that informs the user that he/she is on the 'Home" page to appear ... #"> About </a></li> </ul> </nav> </div>...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Use Expo on Termux - Ctrl + C on Error Screen

I have configured NodeJS and Expo in Termux on my Android cellphone. It worked prefectly, I can develop apps in React Native with ... why this happen or if there's a fix for it?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Display local .txt file on leaflet realtime

I am really new in JS & Leaflet and I′m trying to use Leaflet-Realtime to display a local .txt file, with no succes. I know ... 'json' }, { interval: 60 * 1000, start: false });...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concatenation - qlik sense - concat the same column few times

I have to do this exercise and I need your help. I have a table with this rows: Table Emp: Id, Name, Country, Age. ... to use the concat function? and how to do it? Thank you!...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to use value of JSON object in TypeScript?

I was wondering how can I use string value of JSON object that I get from input. export class NavComponent implements ... : Object but I need only string value inside this object....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Filtering a binary matrix to only contain groups that meet a minimum size

I am given an arbitrary binary matrix of the form: Input = [ [0,0,0,0,0], [0,0,1,1,0], [0,1 ... matrix edges. Any thoughts or tips on this problem would be greatly appreciated....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Converting php variables to Excel

I have php code as follows: <?php $bkimgsrc='images/BGcovers/image.jpg'; $bktitle='My Book'; $bkISBN='000-1-555555-36-6'; ... app or a script or a piece of code that I can run?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Object destructing resulting in 'never' type in TypeScript

My code is as follows: export function testGraph({ id = 0, name = "test", nodes = [] }): Graph { if (nodes. ... 'never' type. I tried explicitly declaring the type but to no luck....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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515 views

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radio button multiply, addition and multiplication of values

Does anyone know how to + and * selected radio values and display a result? in the fiddle > itemOne + itemTwo * ... b) * c; document.getElementById("calculation").innerHTML = z;...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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369 views

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reactjs - How to make the asterisk(*) in <TextValidator> float to right?

I'm using TextValidator from 'react-material-ui-form-validator' and Grid from '@material-ui/core/Grid' and I have multiple ... } fullWidth value="1111" label="AbcdefKey" /> </Grid>...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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243 views

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Splitting rows and moving to csv lines in Excel

I have data looking like this: John 1231231234 [email protected] Bob 1241241244 [email protected] I would like to have it look like this ... .com What's the easiest way to do so in Excel?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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280 views

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python - CloudFormation !Ref Topic not giving ARN

I'm having an issue getting the ARN of an SQS topic passed via an environment variable to a lambda using python runtime. ... bit after the last :? Anyone know how to overcome this?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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671 views

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question about python code folder (lib/test) structure

This is not a question specific to defaultdict but in general philosophy or logic behind placing code in test files. ... out the reason. https://devguide.python.org/exploring/...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - span and strong tags are not working in jsdom

I am new to jsdom and I just want to convert html tags to json using draft js in node services. I got jsdom for ... ('jquery')(window); I need to convert html data to json....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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PrimeNG table layout breaks with small number of rows

I'm using the p-table component of the PrimeNG library. In that, I have a problem, which I described in below project: ... options ;-) Anyone who knows how I can get this right?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to return async data in reducer

I'm getting some data from back-end of my app, but I have a hard time returning state properly. Code: if (action ... function is done? Or any other way of solving this problem?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Simulating occurs_check=error in SICStus Prolog

It turns out that SICStus Prolog doesn't have an occurs_check Prolog flag. At least we couldn't find one, and this ... : ?- unify_with_occurs_check_and_error(X, f(X)). ERROR: ......

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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在线创建站点怎么实现？

有一个业务，泛域名解析到IP地址后，让用户可以自己创建二级域名站点，怎么实现？类似wdcp的这个界面，只是没那么复杂，只需要做到分配域名和生成配置文件就行了，请问有有什么思路或者资料吗？指点一下后学，感激不尽...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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