Advertisements I have the following data frame: Month Day Year Open High Low Close Week 0 1 1 2003 46.593 46.656 46.405 46.468 1 1 1 2 2003 46.538 46.66 46.47 46.673 1 2 1 3 2003 46.717 46.781 46.53 46.750 1 3 1 4 2003 46.815 46.843 46.68 46.750 1 4 1 5 2003… Read More How do I create a new column that references other row's data for its values?
Advertisements I am trying to use SQL queries, but I meet a problem with nullable objects : Here is my code where I define all MySql parameters : MySqlParameter[] listParams = new MySqlParameter[] { new MySqlParameter("id", this.ID), new MySqlParameter("idStock", this.idStock), new MySqlParameter("certificate", this.certificate), new MySqlParameter("idLO", this.launchingOrder.ID), new MySqlParameter("idToleOri", this.toleOri.ID), new MySqlParameter("idTolesOri", string.Join("+", this.idTolesOri)), new MySqlParameter("listInstructions",… Read More set MySqlParameter = -1 if null
Advertisements I have the following bodybuilder query :- bodybuilder() .orQuery(‘match_all’, {}) .orQuery(‘constant_score’, null , (qr) => { return qr.filter(‘range’, ‘stock_sum’, {gte: 1}) }) .build() Which basically generate the following (Query simulator HERE) { "query": { "bool": { "should": [ { "match_all": {} }, { "constant_score": { "filter": { "range": { "stock_sum": { "gte": 1 }… Read More Elasticsearch – how do i add `boost` to `constant_score` in bodybuilder?
Advertisements I use SAP HANA database for a project. I tried this SQL query to get values with a row number. But it gives 1 as all rows. SELECT ROW_NUMBER() OVER (PARTITION BY "ItemCode") AS "ID", "ItemCode", "CommitedQty", "JobId", "WarehouseID" FROM (SELECT "ItemCode", SUM("CommitedQty") AS "CommitedQty","JobId", "WarehouseID" FROM "Stock" WHERE "BaseEntry" = 10352 GROUP BY… Read More ROW_NUMBER() OVER (PARTITION BY) gives same row numbers
Advertisements I want to clear filters only when the component unmounts. So I wrote cleanup function only in useEffect(). But as I checked it with console.log(), 1 was printed after the component mounted too. What’s wrong in this way? useEffect(() => { return () => { clearFilters(); console.log(1); }; }, []); Stack Snippet: const {… Read More how to execute cleanup function in useEffect() only when component unmounts
Advertisements I’m trying to put an image as a background of my project insde the body component, but when I reduce the screen width the image doesn’t overflow correctly. This is what I have now: the css is: body { background-image: url("https://phoenix-engineering.be/wp-content/uploads/2019/07/shutterstock_1113165392.png"); background-size: cover; overflow: hidden; background-position: unset; background-repeat: no-repeat; text-align: center; font-family: "Roboto", sans-serif;… Read More Background image css not scaling down properly
Advertisements i tried web scraping like this. I want to get price and name from product in the website. and I dont know how to extract specific script include ""product details jason inline script.""<script type="application/ld+json>" so extract all jason inline script data using beautfulsoup and I Assign it to script. and i tried to many… Read More I want to web scraping from website their product price and name using python and only using beautifulsoup,requests and json modules
Advertisements I am working on an e-commerce app who’s front-end is made in Angular 13. The below code is intended to sum the prices of the items in the cart: import { Component, OnInit } from ‘@angular/core’; @Component({ selector: ‘.app-top-cart’, templateUrl: ‘./top-cart.component.html’, styleUrls: [‘./top-cart.component.css’] }) export class TopCartComponent implements OnInit { cartItems: any = [… Read More What causes the "Argument expression expected" error in this Angular 13 app?
Advertisements I made a firestore database that looks like this. I’m trying to make "stocks : 999" value change, so that it can be 998, 997, etc… So I followed given instructions on firebase documentation (https://firebase.google.com/docs/firestore/manage-data/add-data#web-version-9_8), but I bump into an error when trying to make it work. const [stock, SetStock] = useState([]); const toUpdate… Read More Uncaught (in promise) FirebaseError: No document to update
Advertisements I tried looking at MDN on arrow functions, that links to an article ES6 In Depth: Arrow functions and the ECMAScript grammar. I didn’t find an example of this style of function body. See takeStockForBowl in example code below. Question, what would this style of function definition be called? Maybe it’s a repurposing of… Read More What is this ES6 syntax/style of function declaration called?
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