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What is the difference between `let` and `var` in swift?
...ge.” iBooks. https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewBook?id=881256329
EDIT
Because comments asking for adding other facts to the answer, converting this to community wiki answer. Feel free edit the answer to make it better.
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How can I check whether a radio button is selected with JavaScript?
...et's pretend you have HTML like this
<input type="radio" name="gender" id="gender_Male" value="Male" />
<input type="radio" name="gender" id="gender_Female" value="Female" />
For client-side validation, here's some Javascript to check which one is selected:
if(document.getElementById...
Android Studio - How to increase Allocated Heap Size
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I looked at my Environment Variables and had a System Variable called _JAVA_OPTIONS with the value -Xms256m -Xmx512m, after changing this to -Xms256m -Xmx1024m the max heap size increased accordingly.
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How to document class attributes in Python? [closed]
...ty has a specific meaning in python. What you're talking about is what we call class attributes. Since they are always acted upon through their class, I find that it makes sense to document them within the class' doc string. Something like this:
class Albatross(object):
"""A bird with a flig...
Is it abusive to use IDisposable and “using” as a means for getting “scoped behavior” for exception
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I don't think so, necessarily. IDisposable technically is meant to be used for things that have non-managed resources, but then the using directive is just a neat way of implementing a common pattern of try .. finally { dispose }.
A purist would argue 'yes - it's abusive',...
Undo a Git commit after push using reverse patch?
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simply use
for committed file:
git revert <SHA1 ID>
for non-committed file:
git reset --hard HEAD
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Can I change the fill color of an svg path with CSS?
...or example:
path {
fill: blue;
}
External CSS appears to override the path's fill attribute, at least in WebKit and Gecko-based browsers I tested. Of course, if you write, say, <path style="fill: green"> then that will override external CSS as well.
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Finding all cycles in a directed graph
...for child in adj[node]:
dfs(adj,child,visited)
visited[node]=NO;
Call the above function with the start node:
visited = {}
dfs(adj,start,visited)
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Uncatchable ChuckNorrisException
.... But if it's not specified in the standard whether it CAN be caught, it's called undefined behavior, because other implementations of Java might choose to make it non-catchable.
– heinrich5991
Dec 15 '12 at 12:39
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What is the proper way to check for null values?
...cast because I think it's likely to surface errors faster. It also avoids calling ToString() on a string object.
– tvanfosson
Mar 20 '12 at 19:17
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