Categories
Mastering Development

deploying ruby-rails + react-js on heroku error

I am having trouble deploying an app I made with ruby on rails and react.js on heroku. Has anyone ran into these errors while deploying? I am completely stuck and hopeless remote: Usage: npm <command> remote: remote: where <command> is one of: remote: access, adduser, audit, bin, bugs, c, cache, ci, cit, remote: clean-install, clean-install-test, […]

Categories
Ask Mathematics

All star products are equivalent to differential star products

Given a $k$-algebra $A$, I want to consider star products on the $k[[h]]$-module $A[[h]]$ given by: $$a\star b = \sum_{i=0}^\infty C_i(a,b)h^i,$$ such that all the $C_i$‘s are bilinear maps, $C_0$ is the usual multiplication in the algebra $A$ and $\star$ defines an associative product on $A[[h]]$. Two such products $\star$ and $\star’$ are said to […]

Categories
Mastering Development

Including multiple products in a single HTML table?

I have a problem with this HTML, as it creates different tables by grouping a product by name. For example: Product A and Product B. Product A appears in one table and Product B appears in another table, I would like to put it together so that it appears in one. the framework is odoo […]

Categories
Development React

issue installing react native expo with npm install -g expo-cli

I was able to install and run react-native but when I tried to install react native expo I got some errors this is my Expo installation npm install -g expo-cli Microsoft Windows [Version 10.0.16299.125] (c) 2017 Microsoft Corporation. All rights reserved. C:\Users\admin>npm uninstall -g expo-cli up to date in 0.043s C:\Users\admin>npm install -g expo-cli npm […]

Categories
Development

Check if strings in a list can be formed by concatenation of elements in the same list

Check if strings in a list can be formed by concatenation of elements in the same list For example: Input List – { best, rockstar, star, guide, bestguide, rock } Output :- rockstar -> rock, star bestguide -> best, guide Here “rockstar” can be formed using rock and star. Similarly “bestguide” can be formed by […]

Categories
Development

How to spread some objects on the whole screen

I am learning to code in pygame. And there is task to spread stars onto the whole screen. I’ve done my code, but it spreads stars only on the left top angle of the screen and I don’t really know how to place stars on the whole screen. This code answer for the spreading: def […]

Categories
Development

How to replace .prevAll() and .addBack() with plain javaScript

I have this function in jQuery: $(document).on(‘mouseover’, ‘.star’, function () { $(this).prevAll().addBack().addClass(‘full’); }); $(document).on(‘mouseout’, ‘.star’, function () { $(this).removeClass(‘full’); }); I would like to create similar functions with native javaScript. The content is dynamically rendered. How can I target siblings elements on mouseover, and on mouseout, how can I remove the class from just one […]