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Mastering Development

How to wait for server response before calling Apollo Graph QL Query?

I’m attempting to call a Graph QL Query after receiving data from my useEffect hook. I need the data from the response to use in the Query. Hooks however cannot be called conditionally. If I take away the condition however, loadedAnime will be undefined. How do I get around this restraint? import React, { useEffect, […]

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User Help

sharepoint 2019 on-premise solutions for html document libraries

I am looking for a solution that allows the document library to also contain formatted html fields. For example a Library that would have: Document Summary, Name, Title, PubSource, PubDate, Category, BusinessUnit Within the default library I would like Document Summary to be HTML formatted and support html links, images, etc. The sharepoint site is […]

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Mastering Development

Read a list from a csv row ‘as a list’ in python using DictReader

My CSV file looks like this: id,name,list 1,Beans,[1,2,3] 2,Spam,[5,6,7] 5,Spam,[7,8,9] When I try to read the last column using the following code: with open(‘some.csv’, newline=”) as csvfile: reader = csv.DictReader(csvfile) for row in reader: print(row["list"]) the output i get is: [1 [5 [7 Apparently, it separates the list at the first ‘,’. However i want […]

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Cryptocurrency Ethereum Mastering Development

Cannot read data from smart Contract with web3 js

Im having trouble reading data from a smart contract I have following js script right here: (bcc-js.js) var contract_address = "0x88e304D8638c31DaC3336917bbE4A152927198D8"; var contract_abi = ‘[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"totalSupply","type":"uint256"}],"name":"LogRebase","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"_owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner_","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"who","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"supplyDelta","type":"uint256"}],"name":"rebase","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]’; window.addEventListener(‘load’, async () => { // Modern dapp browsers… if (window.ethereum) { window.web3 = new Web3(ethereum); try { await ethereum.enable(); var accounts= await web3.eth.getAccounts(); var option={from: accounts[0] }; var contract […]

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Mastering Development

SQL Server, I can’t understand the syntax for creating a function

I am a newbie to SQL, so take it easy on me. I am trying to create a function (simple one). My original table : CREATE TABLE a ( row_count int IDENTITY (1,1) primary key, name varchar(200) NOT NULL products varchar(200) NOT NULL ) INSERT INTO a (name, products) VALUES (‘ABC’, ‘A1’), (‘ABC’, ‘A2’), (‘EDF’, […]

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Mastering Development

How to show Product Item in Product List by array/object

I have to get all list of product from product Item that the place I display each product Item from Firebase, this is my code for that import React, { useState, useEffect } from ‘react’; import { Card } from ‘react-bootstrap’; import Button from ‘../Button/index’; import { DB } from ‘../../firebase/Firebase’; import "./index.css"; const ProductItem […]

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Mastering Development

@TimeToLive Annotation is not working in mu Spring Boot project

I have created a CRUD operation program on Spring boot Using Redis,the CRUD operattion is working fine.After this, I was trying out "time to live(ttl)" feature,where if i save some data, it should get deleted after 10 seconds,this part is not working…I tried using the @TimeToLive annotation,but the entries are still present after the time […]

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Mastering Development

Why can’t our GAN load the weights saved from previous training epochs?

We have another problem with our GAN: We build a model (with help of a toutorial) and trained it a lot of times. you can take a look at the code here: https://colab.research.google.com/drive/1JKj7z1V9okh0oOMaJHbGD-XjQb60SvKz#scrollTo=i3DXtjMXRfeo Everything was running perfect until last week, but now we have the problem that we can’t load our weights anymore. It’s very […]

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Database Development

Querying Full-Text search JsonB

I have a table which I need to use full text search to filter data by multiple keywords. It works fine when I’m filtering by columns with datatypes such as varchar, int, timestamp… But when it comes to jsonb, it does not work. My table structure: CREATE TABLE public.channel_jobs ( id integer NOT NULL GENERATED […]

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Mastering Development System & Network

Way to closely examine Outlook rules on Exchange server side

Users in my organization complain about undelivered mail very often. 80% of times the reason are misconfigured rules on user’s Outlook. Is there any way to closely examine Outlook rules on server side without loggin in to user’s workstation with user’s account? I found the command Get-InboxRule -Mailbox $user | Select-Object MailboxOwnerID,Name,Description,Enabled,RedirectTo, MoveToFolder,ForwardTo | Export-CSV […]