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Python: print a generator expression?
...expression is a "naked" for expression. Like so:
x*x for x in range(10)
Now, you can't stick that on a line by itself, you'll get a syntax error. But you can put parenthesis around it.
>>> (x*x for x in range(10))
<generator object <genexpr> at 0xb7485464>
This is sometime...
MIN/MAX vs ORDER BY and LIMIT
... worst unindexed case is wrong. You always need a full scan, how else you know it's a min or max? It's not like you're scanning and the value screams: "Hey, you finally found me! I'm Jack, the max!".
– Robo Robok
Sep 22 '19 at 13:46
...
ant warning: “'includeantruntime' was not set”
...">
<javac includeantruntime="false" />
</presetdef>
Now all subsequent javac tasks will essentially inherit includeantruntime="false". If your projects do actually need ant runtime libraries, you can either add them explicitly to your build files OR set includeantruntime="tru...
What does Html.HiddenFor do?
...
public string Value { get; set; }
public int Id { get; set; }
}
Now you want the edit page to store the ID but have it not be seen:
<% using(Html.BeginForm() { %>
<%= Html.HiddenFor(model.Id) %><br />
<%= Html.TextBoxFor(model.Value) %>
<% } %>
Thi...
iTerm 2: How to set keyboard shortcuts to jump to beginning/end of line?
...
Do you know what the code/sequence for Command+Delete is? (clear out the prompt)
– Steven Lu
Mar 31 '13 at 18:37
...
Unexpected value from nativeGetEnabledTags: 0
... the SDK (r21) and ADT 21.0.0. I tried simple code, and it works well, but now I get a warning in LogCat that did not appear in the previous versions:
...
How do ports work with IPv6?
...
They're the same, aren't they? Now I'm losing confidence in myself but I really thought IPv6 was just an addressing change. TCP and UDP are still addressed as they are under IPv4.
...
The “backspace” escape character '\b': unexpected behavior?
...ut erasing (on your terminal):
hello worl
^
Note the cursor is now on the r. Then it outputs d, which overwrites the r and gives us:
hello wodl
^
Finally, it outputs \n, which is a non-destructive newline (again, on most terminals, including apparently yours), so the l is le...
Difference between File.separator and slash in paths
...f searching, to find the "you can always use a slash" behavior documented. Now, I'm sure I've seen it documented, but in the absense of finding an official reference (because my memory isn't perfect), I'd stick with using File.separator because you know that will work.
...
Update Git submodule to latest commit on origin
...git submodule init
# Time passes, submodule upstream is updated
# and you now want to update
# Change to the submodule directory
cd submodule_dir
# Checkout desired branch
git checkout master
# Update
git pull
# Get back to your project root
cd ..
# Now the submodules are in the state you want...