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Detect if homebrew package is installed
...lse
# The package is not installed
fi
That said, it is probably a good idea to check for the existence of the tool at all and not just checking for the respective homebrew package (e.g. by searching for the executable in the $PATH). People tend to install tools in a rather large amount of ways i...
Django Rest Framework: Dynamically return subset of fields
...I had a look at that implementation, and it looks like it's the same basic idea. But the dbrgn implementation has some differences: 1. doesn't support exclude with fields!=key1,key2. 2. also modifies serializers outside of GET request context, which can and will break some PUT/POST requests. 3. d...
Hide options in a select list using jQuery
...ake sure that we don't double wrap ones that are already wrapped. Similar idea with unwrapped ones.
– anon
May 21 '18 at 18:51
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What is the pythonic way to detect the last element in a 'for' loop?
...hich works flawlessly in my code), but I dont understand how it works (the idea behind)
– Olivier Pons
Dec 6 '15 at 16:29
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How to avoid warning when introducing NAs by coercion
... This is the best answer. Using suppressWarnings() is generally a bad idea, because we sometimes need to see those warnings.
– keberwein
Sep 26 '17 at 18:49
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Set a default parameter value for a JavaScript function
...Alnitak: It's still possible to override undefined. So, it's still a good idea to use typeof and 'undefined'.
– L S
Jun 14 '17 at 20:27
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Tracing XML request/responses with JAX-WS
...my 3 web services (I have 3 JAX-WS web services in my Tomcat web-app). Any idea why it wouldn't work on all 3?
– David Brossard
Nov 5 '12 at 14:19
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Immutability of Strings in Java
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+1 Here's an idea, immutable objects in java are like copy-by-value, you can have 2 references to a String, but you should consider them 2 separate Strings since it's immutable, and working with one of them won't affect the other
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Maximum single-sell profit
...s! Let's think about solving this problem using dynamic programming. The idea will be to think about the problem as follows. Suppose that we knew the answer to the problem after looking at the first k elements. Could we use our knowledge of the (k+1)st element, combined with our initial solution...
How do I check if an element is really visible with JavaScript? [duplicate]
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I must admit I had no idea about that method. Thanks for sharing. +1
– Ionuț G. Stan
Oct 9 '09 at 10:44
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