This question already has answers here:
How do you print a dollar sign $ in Dart
(2 answers)
Closed 2 years ago.
I want to use this as String in Dart.
String s = 'reservoir$lbc_release'
Getting error due to $. How do I solve this?
Just use escape sequence
print('Hello \$');
Please use '\' in front of '$'
String s = 'reservoir\$lbc_release'
Related
This question already has answers here:
How to print double quotes inside ""?
(3 answers)
Closed 2 years ago.
I have a really simple question and I bet the answer is as simple..
I want to create a String which include the symbol " twice, such as (Hello "" World !) or (Hello "new" World !), without breaking my String (for comprehension purpose, I've put my sentences inside of parentheses instead of said symbol ").
I can't remember the name of the symbol ("), so I can't google anything, because (" ") is not clear enough for searching motor..
I hope I'm being clear, thank you for your help !
You can use hashtag before and after the double quotes to allow any special character to be added inside your string:
let string = #"Hello "" World !"#
This question already has an answer here:
Firestore Query Properties with special characters
(1 answer)
Closed 2 years ago.
With the following document, how would you escape the where query ?
/posts/abc
users: [map]
abc.def: 4
firestore().collection('posts').where('users.abc.def' , '>' , 0)
Is there a way to escape the . ?
Thanks
As #kmoser mentioned in the comment above, the solution is to use FieldPath
firestore().collection('posts').where(new firestore.FieldPath('users', 'abc.def'), '>' , 0)
This question already has answers here:
Why do integers in PowerShell compare by digits?
(4 answers)
Closed 4 years ago.
In powershell, when I add string + array the result is a string, but when I add array + string the result is an array? Why is that?
PowerShell converts the second operand to the type of the first operand (if it can).
This question already has answers here:
escape dictionary key double quotes when doing println dictionary item in Swift
(5 answers)
Closed 8 years ago.
This freaks out because it finds an unexpected " in the string interpolation:
let temp = "\(catalogueRows[0]["person"])"
Tried using single quotes but that didn't work. Seems like a pretty simple step and I'm confused why it doesn't work.
You can't use quotes in a string interpolation. That's just the way the syntax is.
You can't "escape" or single-quote your way out. You'll need two lines of code to do what you're trying to do:
let temptemp = catalogueRows[0]["person"]
let temp = "\(temptemp)"
This question already has answers here:
using wildcard in the dir locations and find all files with an extension
(2 answers)
Closed 9 years ago.
my #hex_locations = ("$FindBin::Bin/../../../project/platform-aa-full/bb",
"$FindBin::Bin/../../../project/platform-aa-base/bb");
how do I use wild card to match any directory with project/platform-aa-* in above code?
Use glob
my #hex_locations = glob("$FindBin::Bin/../../../project/platform-aa-*/bb");