B4J Question String $ usage

[ThRuST]

I'd like that someone can explain how to use the string ${''} works and how it can be used? also refer to a tutorial on this. Thanks

 

[Daestrum]

It's a shortcut to allow you to place variables inside a $"..."$ string.

Instead of having to write

Log("This is the time  : [" & DateTime.Time(DateTime.now) & " ]")

You can write

Log($"This is the time  : [ ${DateTime.Time(DateTime.now)} ]"$)

 

[ThRuST]

Thanks, your example was as clear as it could be I've seen a similar handling for C sharp years ago, it was a new invention. Nice to be able to use it with B4X as well.

 

[Cableguy]

https://www.b4x.com/android/forum/threads/b4x-smart-string-literal.50135/

 

[DonManfred]

You can write

It is more easy

Log($"This is the time  : [$time{DateTime.now}]"$)

Log($"This is the date  : [$date{DateTime.now}]"$)

 

[ThRuST]

ok so just to make it simple the [ ] chars is not neccessary it's just a decoration thing, just to clearlfy Don Manfred's example, anyway thanks

This is a good start, keep posting some more examples since this is a complex matter

I made Don Manfreds complicated code alot easier haha

Log($"This current date is $date{DateTime.now} and the time is $time{DateTime.now}"$)

 

[ThRuST]

And I should point out that when using this with CSS a HTML tag must always start with < and end with > Objections anyone?

$"
<code goes here blabla ${variable1} blalba ${variable2}>
"$

Reminds me of Ajax/Cordova/JQuery calls even Angular.

 

[DonManfred]

just to clearlfy Don Manfred's example

NO.
I just extended @Daestrum example from #2

But yes, it is only decorative