Questions tagged [unless]
12 questions
1
vote
0 answers
Nested Unless tags break Liquid/Jekyll
I've been working with generating some JSON data from liquid tags, it seems that excluding the last comma in this JSON data is not happening when nesting 'unless' tags.
Please see answer below, this initial issue and question was not the…
Moxxi
- 39
- 7
1
vote
1 answer
What do I wrong comparing a tuple of integers in PureScript?
Debugging my event handler for the mouse move event, I wrote this code:
unless (scrollDelta == Tuple 0 0) $ trace (show scrollDelta) \_ -> do ...
And I get console output
Tuple 0 0
The idea behind this is to save a difference in the mouse…
ruben.moor
- 1,876
- 15
- 27
1
vote
1 answer
Ruby unless conditional with || operator
I am confused about how the Ruby unless conditional works with the || operator.
So what I've got essentially:
<% unless @instance_variable.method || local_variable.another_method %>
code block
<% end %
At the moment, the first part is evaluating…
Fred
- 13
- 3
0
votes
0 answers
Laravel validation - field A required when one of two conditions is acheived: field B filled or filed C has a specific value
Laravel validation - field A required unless when one of two conditions is acheived: field B filled or filed C has a specific value
Hi
I have control panel for news website
with three filed
source
writer_id
place_id
I need "source" to be required…
0
votes
1 answer
Unless and Until in programming languages
What is the difference between
if (false == )
and
if (!)
and
unless ()
What is the difference between
while (false == )
and
while (!)
and
until ()
Why isn't unless and until…
user.regular
- 13
- 1
0
votes
2 answers
(Liquid) Checking for a variable in an array
I’m looking to find if the title of the current collection page exists inside the array of shop.vendors and display a div only if the collection page title does not exist in the array. From the documentation it seems like I should be able to do this…
David Ferguson
- 11
- 2
0
votes
2 answers
why the unless function in perl isn't working
I was writing a simple perl script which calculates payment based on the hours given by the user and the program mustn't allow payments above 500 hrs but has to allow upto 600 for females, and I was using the unless function but it is not working it…
akram seid
- 91
- 5
0
votes
1 answer
How can I make an "Unless condition" in an IF statement c++
I'm making blackjack in C++ and I'm nearing the end! I'm making my winning and loss statements. But my issue is that I need my if statements to determine not only whether or not the dealer's/players hand is greater or less than one another it needs…
Hostyle27
- 11
- 4
0
votes
1 answer
shell built-ins fail in exec statement
I have the following exec statement:
exec { 'enable-locale':
command => 'sed -i "/^#en_US.*/s/^#//" /etc/locale.gen',
provider => shell, # for grep …
qdii
- 12,505
- 10
- 59
- 116
-1
votes
1 answer
Using a one-line unless or if statement in Ruby
I am new to Ruby. I am looking for an elegant one line solution to this line of code:
puts "Year: ".colorize(:light_blue) + "#{instrument.year}"
I would like it to print "N/A" if instrument.year is "" (an empty string). I imagine an unless, if or…
mlgvla
- 17
- 3
-2
votes
1 answer
Ruby unless vs if logic
Can someone please explain this behavior? Why does nil return true when result = true if i but returns false when result = false unless i
unless case screenshot
def my_all?(pattern = nil)
result = true
my_each do |i|
case pattern
when nil
p…
dili021
- 58
- 6