Get all the children top and left

I want to get all children offset top inside parent by using jquery and javascript but I only found a few ways to use loop and it’s very long so I believe there is something shorter for this And i never actually learn jquery from A to Z so if it has any solution can… Read More Get all the children top and left

How do I pass a variable to a child widget?

I am passing a string value `final String userLogin; from another file via Route. class AutfPasswordWidget extends StatefulWidget { final String userLogin; AutfPasswordWidget({Key? key, required this.userLogin}) : super(key: key); @override State<AutfPasswordWidget> createState() => _AutfPasswordWidgetState(); } final iconColor = const Color(0xFF2787F5); class _AutfPasswordWidgetState extends State<AutfPasswordWidget> { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( centerTitle:… Read More How do I pass a variable to a child widget?

How to get first level children via querySelectorAll(selector)

If we have a UL list with nested UL lists like <ul> <li>Item <ul> <li>Subitem</li> </ul> </li> </ul> and we need to get all the LI elements of the first level only, we can use querySelectorAll() the way like: let firstLevelChildren = document.querySelectorAll(‘ul > li’); But what if I create the UL list via document.createElement(‘ul’)… Read More How to get first level children via querySelectorAll(selector)

Field '_areas' should be initialized because its type 'List<Area>' doesn't allow null

Flutter shows error Non-nullable instance field ‘_areas’ must be initialized. Maybe this is because of not defining null in lists areas what when defining null Like List? _areas; it shows an error on the index Error: Field ‘_areas’ should be initialized because its type ‘List’ doesn’t allow null. Error Line: List _areas; Here is my… Read More Field '_areas' should be initialized because its type 'List<Area>' doesn't allow null

Pivot_wider: Combine Duplicate Observations AND Create New Variable Columns for Those Values

I’m new to R and have scoured the site to find a solution – I’ve found lots of similar, but slightly different questions. I’m stumped. I have a dataset in this structure: SURVEY_ID CHILD_NAME CHILD_AGE Survey1 Billy 4 Survey2 Claude 12 Survey2 Maude 6 Survey2 Constance 3 Survey3 George 22 Survey4 Marjoram 14 Survey4 LeBron… Read More Pivot_wider: Combine Duplicate Observations AND Create New Variable Columns for Those Values