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Codebales holds an ever growing number of solutions to problems that we have experienced in our day to day code writing
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Andrew Fletcher
•
Regular expressions (regex) are extremely useful in extracting information from any text by searching for one or more matches of a specific search pattern.
The basic anchors - ^ and $
expression
action
^The
matches any string that starts with The
end$
matches a string that ends with end
^The end$
exact string match (starts and ends with The end)
pragmatic
matches any string that has the text pragmatic in it
The basic quantifiers — * + ? and...
Andrew Fletcher
•
In SwiftUI, has made creating a list of item very easy. If...
Andrew Fletcher
•
I attempted the run command and the response I had was succeeded, but then...
Andrew Fletcher
•
Working with buttons
To begin, what is a button in SwiftUI?
struct MainView:...
Andrew Fletcher
•
When those simple annoyances are too frustrating! Yes we have all been...
Andrew Fletcher
•
Whilst updating nodejs and npm on a Centos 6 or 7 server running Apache, I hit a few walls and as a matter of process found some commands that are handy to run before doing a deep dive in Google.
Cleaning the cache
sudo yum clean all
rm -rf /var/cache/yum/*
To make the cache
sudo yum clean all; sudo yum makecacheIf you want to run several commands use semi-colon as noted above.
Updating
When running an update command run
sudo yum -y...
Andrew Fletcher
•
The purple warning notification of annoyance recently came my way! I...
Andrew Fletcher
•
I'm currently working on a project that requires login, register, forget...
Andrew Fletcher
•
iOS localization on the fly
If you have added languages to your app......
Andrew Fletcher
•
Recently I had an error with a domain smtp server not recognising port 587....
Andrew Fletcher
•
After creating a new view with a @Binding string as follows
struct EditRival: View {
@Environment(\.presentationMode) var presentationMode
@EnvironmentObject var realmPerson: RealmPersons
@Binding var uid: String
The previews struct had an error with the var previews
struct EditRival_Previews: PreviewProvider {
//... Initial code ...//
static var previews: some View {
EditRival()
.environmentObject(RealmPersons())
}The error was Cannot convert value of...
Andrew Fletcher
•
Building a contact list using SwiftUI has many challenges.
One challenge is...
Andrew Fletcher
•
What to do when you want to filter a Realm object, using NSPredicate in...
Andrew Fletcher
•
I'm going to take you on a journey about adding a gradient tint to a...