DeveloperLoad - DeveloperLoad

How to fix the exception 'Invalid argument, not a string or column' while joining two dataframes in Pyspark?

I am trying to join two dataframes: df1, columns: document_nbr, line_id, product_id, product_size, reference_nbr, local_cd, invoice_local_cost, invoice_delivery

Turning of modules in XCode hides errors

I am writing a program in c and I have noticed that when i set the setting Enable Modules (C and Objective-C) to No in XCode all errors i get while writing my c

WPF listview vertical scrollbar

I've got a listview control with a gridview as it's view property. One of it's columns is dedicated to display a really long text. That column cell template is

Does pthread_mutex_t in linux are reentrancy (if a thread tries to acquire a lock that it already holds, the request succeeds)

I am coming from Java , so i am familiar with synchronize and not mutex. I wonder if pthread_mutex_t is also reentrancy. if not is there another mechanism for t

How to return a message in js if you forget to put the quotes in a argument string

I'm new to JavaScript and following a course, I've tried to look for answers on other posts but I couldn't find anything similar, hopefully, I didn't miss any.

Google Analytics 4 Fire custom event not working

I'm a web developer who's new to Google Analytics 4 and I can't seem to get custom event working. What I want to achieve I want detect when users click specific

Cross platform file list using wildcard

I'm looking for a cross platform function that supports wildcard listing of a directory contents similar to what FindFirstFile on windows. Is the wildcard patt