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Mastering Development

Angular: Load data from two components to a single component one at a time

I’m creating a news portal and I have a category component and a navbar component. Both of these components contain categories. My aim is to load the news for a particular category like sports, entertainment.. etc. What I tried is that both my category component and navbar component points to the same news component to […]

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Mastering Development

Send a GET/POST request to SQLite using Javascript

I have created my database.db and created a table in the following manner: <?php class MyDB extends SQLite3 { function __construct() { $this->open(‘database.db’); } } $db = new MyDB(); if (!$db) { echo $db->lastErrorMsg(); } else { echo “Opened database successfully\n”; } $sql = <<<EOF CREATE TABLE EVENTS (ID INTEGER PRIMARY KEY AUTO_INCREMENT, TITLE char(50) […]

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Mastering Development

UIButton not respond to tap

help me. my button is not working when I tap, I try other suggestion in another post from stack overflow. but none is working, this is my code. let saveBtn = GActionBtn(type: .system) lazy var footer: UIView = { let v = UIView() v.isUserInteractionEnabled = true v.addSubview(saveBtn) saveBtn.isUserInteractionEnabled = true saveBtn.addTarget(self, action: #selector(handleSave), for: .touchUpInside) […]

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Mastering Development

Draw grid with text in each box then receive coordinates using opencv python

so I have been trying to make this work I haven’t had much luck. So the point of this is that I make a grid over a section of the screen and then get a coordinate of a center of a box. This is what I’ve tried import numpy as np from mss import mss […]

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Development Linux Ubuntu

Can’t start 2 usb video receivers with usb3.0 hub simultaneously: no space left on device

I have a task to start 4 USB video receivers at my laptop (ASUS ux533fd). I have only 2 USB ports and 1 Type-C port, so only 3 are available. I bought a USB3.0 hub to solve my USB port shortage problem, but when I connect 2 receivers at the hub I can only access […]

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Development

d3 – v5 text rendering slower than v3.5?

I have migrated my d3 tree from v3.5 to v5. Now I find that there is considerable lag with the v5 version when performing a search on the tree using Patrick Brockmann’s search and highlight functionality. The lag shows when doing a search with the drop-down Select2. All leaf nodes are not expanding fast enough […]

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Development

UICollectionView is not reloading search results even with reloadData

I can get the search feature to filter out the results but it won’t display those searched results on the iPhone emulator. It displays the results on the iPhone I have (iPhone 5) but not on the emulator. I don’t know why they collection view is not updating while I type. The items in the […]

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Development

Videos in long Flatlist crashes the app and having very very poor performance

Topic: Video Flatlist in React Native. (Normal Videos / YouTube Videos) Any one will be displayed according to the array data simultaneously. So it will be a long flatlist containing two types of video. Sometimes many onPress event doesn’t work due to performance issue Major Issues: App crashes when scrolling bottom to top Performance is […]

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Development

How to numbering seat without skip white space number? [closed]

above picture is result and red colored number that i want to modify. here is jquery-seat-chart.js code. jQuery-Seat-Charts v1.1.5 https://github.com/mateuszmarkowski/jQuery-Seat-Charts Copyright 2013, 2016 Mateusz Markowski Released under the MIT license [![enter image description here][2]][2] !function (t) { t.fn.seatCharts = function (s) { if (this.data(“seatCharts”)) return this.data(“seatCharts”); var e = this, a = {}, n = […]

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Development

Copyable TextView content inside CollectionView Cell Swift 5

I want to implement a custom context menu by tapping on a Collection View cell that will consist of Copy, Report and Block features. The problem is that after I have implemented the menu itself, I added a TextView and now nothing seems to be working anymore. The menu does not show up, neither textview […]