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rails simple_form - hidden field - create?
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310
try this
= f.input :title, :as => :hidden, :input_html => { :value => "some value" }
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How to list all installed packages and their versions in Python?
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Ashwini ChaudharyAshwini Chaudhary
206k4545 gold badges390390 silver badges441441 bronze badges
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JavaScript: Is there a way to get Chrome to break on all errors?
...com/web/tools/chrome-devtools/javascript/add-breakpoints#exceptions as of 2016-11-11.
I realize this question has an answer, but it's no longer accurate. Use the link above ^
(link replaced by edited above) - you can now set it to break on all exceptions or just unhandled ones. (Note that you ne...
Why sizeof int is wrong, while sizeof(int) is right?
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101
The following could be ambiguous:
sizeof int * + 1
Is that (sizeof (int*)) + 1, or (sizeof(i...
What are commit-ish and tree-ish in Git?
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160
The Short Answer (TL;DR)
Here's a complete list of commit-ish and tree-ish identifiers (from th...
Remove not alphanumeric characters from string
...ut string:
input.replace(/\W/g, '')
Note that \W is the equivalent of [^0-9a-zA-Z_] - it includes the underscore character. To also remove underscores use e.g.:
input.replace(/[^0-9a-z]/gi, '')
The input is malformed
Since the test string contains various escaped chars, which are not alphanum...
Getting “Warning! PATH is not properly set up” when doing rvm use 2.0.0 --default
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edited Oct 15 '16 at 10:43
Arslan Ali
15.7k77 gold badges4545 silver badges6363 bronze badges
answer...
Most efficient way to concatenate strings in JavaScript?
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edited Apr 24 '18 at 9:20
answered May 22 '13 at 16:16
Ja...
cancelling queued performSelector:afterDelay calls
...lector
[self performSelector:@selector(mySel:) withObject:nil afterDelay:5.0];
// cancel the above call (and any others on self)
[NSObject cancelPreviousPerformRequestsWithTarget:self];
See apple docs, it's right at the end of the performSelector:withObject:afterDelay: description.
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Select first occurring element after another element
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207
#many .more.selectors h4 + p { ... }
This is called the adjacent sibling selector.
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