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Angularjs prevent form submission when input validation fails
...gularjs with some client side input validation to check that the user name and password is not empty and longer than three characters. See the below code:
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Grunt watch error - Waiting…Fatal error: watch ENOSPC
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After doing some research found the solution. Run the below command.
echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
For Arch Linux add this line to /etc/sysctl.d/99-sysctl.conf:
fs.inotify.max_user_watches=524288
...
Passing arguments to an interactive program non-interactively
I have a bash script that employs the read command to read arguments to commands interactively, for example yes/no options. Is there a way to call this script in a non-interactive script passing default option values as arguments?
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What happens to git commits created in a detached HEAD state?
...it is still in the reflog.
git reflog
This will show a list of commits, and the "lost" commit should be in there. You can make it into a new branch. For example, if the SHA-1 is ba5a739, then you can make a new branch named "new-branch" at the old commit with:
git branch new-branch ba5a739
N...
How to make HTML input tag only accept numerical values?
...transparent support in older browsers.
JavaScript
Update: There is a new and very simple solution for this:
It allows you to use any kind of input filter on a text <input>,
including various numeric filters. This will correctly handle
Copy+Paste, Drag+Drop, keyboard shortcuts, contex...
Why cast an unused function parameter value to void?
...u're intentionally ignoring something or does (void) actually do something and when the compiler sees it, it'll just count it as having done something with the variable and therefore not issue a warning?
– Tan Wang
Sep 15 '16 at 14:20
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How do I compare two hashes?
...sh[*difference.flatten]
=> {"c"=>3}
Doing it all in one operation and getting rid of the difference variable:
Hash[*(
(hash3.size > hash1.size) \
? hash3.to_a - hash1.to_a \
: hash1.to_a - hash3.to_a
).flatten]
=> {"c"=>3}
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How to trim a string to N chars in Javascript?
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And if you want ellipses for strings exceeding the max length (probably more helpful for longer max): var string = "this is a string"; var length = 20; var trimmedString = string.length > length ? string.substring(0, leng...
Get path of executable
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@curiousguy I'm not sure I understand you; I'm pretty sure that's the whole point of this question :)
– Ben Hymers
Dec 8 '11 at 22:08
6
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Run task only if host does not belong to a group
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Here's another way to do this:
- name: my command
command: echo stuff
when: "'groupname' not in group_names"
group_names is a magic variable as documented here: https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html#accessing-information-about-...