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How to upgrade rubygems
I need to upgrade gems to 1.8 i tried installing the respective debian packages but it seems its not getting upgraded
8 An...
How to check if a value exists in an array in Ruby
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1974
You're looking for include?:
>> ['Cat', 'Dog', 'Bird'].include? 'Dog'
=> true
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How do I fetch lines before/after the grep result in bash?
...n use the -B and -A to print lines before and after the match.
grep -i -B 10 'error' data
Will print the 10 lines before the match, including the matching line itself.
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make div's height expand with its content
...ex-container {
display: flex;
flex-direction: column;
min-height: 100vh;
}
header {
background-color: #3F51B5;
color: #fff;
}
section.content {
flex: 1;
}
footer {
background-color: #FFC107;
color: #333;
}
<div class="flex-container">
<header>
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How do I check if a file exists in Java?
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17 Answers
17
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Where to get “UTF-8” string literal in Java?
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11 Answers
11
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How can I display an image from a file in Jupyter Notebook?
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11 Answers
11
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How do I execute a string containing Python code in Python?
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14 Answers
14
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How do I view events fired on an element in Chrome DevTools?
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Hit F12 to open Dev Tools
Click the Sources tab
On right-hand side, scroll down to "Event Listener Breakpoints", and expand tree
Click on the events you want to listen for.
Interact with the target element, if they fire you will...
Git commit date
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281
The
show
command may be what you want. Try
git show -s --format=%ci <commit>
Other form...