October 23, 2024
Chicago 12, Melborne City, USA
PHP

How do delivery systems like Uber Eats and Glovo manage order assignment, confirmation, and real-time courier location updates?

I’m curious about the backend mechanisms behind popular delivery platforms like Uber Eats, Glovo, or similar services. Specifically, I’m interested in understanding how

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C#

Write reusable pointer type casting logic in a function or macro

Here is the context of my question. I have this code : typedef enum DType { float32 } DType; typedef struct Array {

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java

How can I create a CriteriaUpdate query where I select the 'id' column if a method its true which changes another column in its table?

I have a Java 8 project. I have a Server class containing: Long id string name string ipAddress String status Its an entity

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python

This error occurs after packaging the vispy program with pyintsaller

import sys import numpy as np from PyQt5 import QtWidgets from vispy import scene from vispy.app import use_app use_app('PyQt5') N = 500 class

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javascript

context.sync() blocked in Powerpoint Addin while trying to replace an image

I’m working on an Addin for Powerpoint and I’m having some problems with context.sync() and I Don’t understand why. A little explanation of

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CSS

Apply styles of different css classes based on media query for a class

I created a css file where I have styles for texts specifically. Example .h1_24 { font-weight: 700; font-size: 24px; line-height: 140%; } .h5_18

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Android

Where does JS runtime gets executed for Android app created in React Native?

As we know in React Native, the JS runtime is used to execute the JS code. In Android the JS runtime is bundled

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PHP

I can't pass data to the component in Laravel

I’m trying to pass data to the components using directly to the Blade component (using @props). As a first step I put the

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java

How do you show the interstitial on a Sabre Desktop only app?

In a web based sabre app its possible to call the Interstitial service which will show a loading circle during a long running

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python

Fixing badly formatted floats with numpy

I am reading a text file only containing floating point numbers using numpy.loadtxt. However, some of the data is corrupted and reads something

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