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Get index of array element faster than O(n)
...gt; [6] }
This allows for a quick search for duplicate entries:
indices.select { |k, v| v.size > 1 }
=> { 1 => [0, 3], 2 => [1, 4], 3 => [2, 5] }
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UITableViewHeaderFooterView: Unable to change background color
...I tried this:
within the xib file the background color for header view was selected to clear color instead of default once I changed it to default the warning went away.
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Setting CSS pseudo-class rules from JavaScript
I'm looking for a way to change the CSS rules for pseudo-class selectors (such as :link, :hover, etc.) from JavaScript.
12 ...
Padding characters in printf
...t you hard code the value to the largest one you need and use padlength to select the actual length to output.
– Paused until further notice.
Nov 19 '18 at 13:53
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Python: Checking if a 'Dictionary' is empty doesn't seem to work
...e for statement. As a result, your code will process only one, arbitrarily selected key, if a key exists. If a key does not exist, the function will return None, which will be cast to boolean False. Ouch! All the empty dictionaries will be classified as false-nagatives.
If the dictionary is not emp...
Bower: ENOGIT Git is not installed or not in the PATH
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Make sure you installed Git with the second or third option selected from the list. It will penetrate the Git command to cmd by modifying PATH automatically ;)
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What is default color for text in textview?
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This looks like it will properly select the colour based on theme, and will update for instance, if the app is in night mode.
– Brill Pappin
Aug 26 '15 at 15:47
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How can I search for a multiline pattern in a file?
.... Then use grep with perl regex by adding -P. find . -exec grep -nHP '(?s)SELECT.{1,60}FROM.{1,20}table_name' '{}' \;
– Jim
Feb 22 '13 at 13:02
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gradle build fails on lint task
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You can select proper options from here
android {
lintOptions {
// set to true to turn off analysis progress reporting by lint
quiet true
// if true, stop the gradle build if errors are found
abo...
CSS Classes & SubClasses
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FYI, when you define a rule like you did above, with two selectors chained together:
.area1.item
{
color:red;
}
It means:
Apply this style to any element that has both the class "area1" and "item".
Such as:
<div class="area1 item">
Sadly it doesn't work in IE6...