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Removing all empty elements from a hash / YAML?
...dd a compact method to Hash like this
class Hash
def compact
delete_if { |k, v| v.nil? }
end
end
or for a version that supports recursion
class Hash
def compact(opts={})
inject({}) do |new_hash, (k,v)|
if !v.nil?
new_hash[k] = opts[:recurse] && v.class == Hash...
How to set the UITableView Section title programmatically (iPhone/iPad)?
...ryboards . The UITableView is setup with static cells and a number of different sections.
8 Answers
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Merge and interleave two arrays in Ruby
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What if a has more than 3 elements?
– Michael Kohl
Sep 5 '11 at 21:17
116
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Prevent the keyboard from displaying on activity start
...outParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
Otherwise, declare in your manifest file's activity -
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".Main"
android:label="@string/app_name"
android:windowSoftInputMode="...
Easy way to print Perl array? (with a little formatting)
...
Or, if you want to be really dirty: {local $,=', ';print @array}.
– musiKk
Apr 21 '11 at 7:57
10
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How do I access my SSH public key?
...add; ssh-add -l'
or public key:
ssh-agent sh -c 'ssh-add; ssh-add -L'
If you've the message: 'The agent has no identities.', then you've to generate your RSA key by ssh-keygen first.
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im...
How do I generate random numbers in Dart?
... You are better off reading /dev/urandom with the File class if you want cryptographically strong random numbers.
– Tower
Aug 2 '12 at 6:27
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How to draw border around a UILabel?
...erColor = [UIColor greenColor].CGColor
myLabel.layer.borderWidth = 3.0
Swift 5:
myLabel.layer.borderColor = UIColor.darkGray.cgColor
myLabel.layer.borderWidth = 3.0
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improve this answer
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Remove all the children DOM elements in div
... library) should be marked as the accepted answer. Eugene - thanks for clarification.
– robocat
Jul 24 '13 at 3:03
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Split list into smaller lists (split in half)
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A = [1,2,3,4,5,6]
B = A[:len(A)//2]
C = A[len(A)//2:]
If you want a function:
def split_list(a_list):
half = len(a_list)//2
return a_list[:half], a_list[half:]
A = [1,2,3,4,5,6]
B, C = split_list(A)
...