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What are the differences between Rust's `String` and `str`?
Why does Rust have String and str ? What are the differences between String and str ? When does one use String instead of str and vice versa? Is one of them getting deprecated?
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How to get the instance id from within an ec2 instance?
How can I find out the instance id of an ec2 instance from within the ec2 instance?
32 Answers
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How to specify JVM maximum heap size “-Xmx” for running an application with “run” action in SBT?
...gives by default. I know in Java it's specified by "-Xmx" option. How do I set SBT up to use particular "-Xmx" value to run an application with "run" action?
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How to replace local branch with remote branch entirely in Git?
...'re replacing, and that "origin/master" is the remote branch you want to reset to:
git reset --hard origin/master
This updates your local HEAD branch to be the same revision as origin/master, and --hard will sync this change into the index and workspace as well.
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Change select box option background color
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Yes you can set this by oppisite way using this,
option:not(:checked) { }
check this demo jsFiddle
HTML
<select>
<option val="">Please choose</option>
<option val="1">Option 1</option>
<o...
How can I check if my python object is a number? [duplicate]
In Java the numeric types all descend from Number so I would use
5 Answers
5
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Named colors in matplotlib
..._line, xf_line,
color=colors[name], linewidth=(h * 0.8))
ax.set_xlim(0, X)
ax.set_ylim(0, Y)
ax.set_axis_off()
fig.subplots_adjust(left=0, right=1,
top=1, bottom=0,
hspace=0, wspace=0)
plt.show()
Additional named colors
Updated 2017-10-25....
'git status' shows changed files, but 'git diff' doesn't
...I was able to fix this problem by adding all files to the index and then resetting the index.
git add -A
git reset
core.filemode was set to false.
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Explain the use of a bit vector for determining if all characters are unique
...s you will have easier to read code, probably something like this:
vector.SetFlag(4, true); // set flag at index 4 as true
for int you will have lower-level bit logic code:
checker |= (1 << 5); // set flag at index 5 to true
Also probably int may be a little bit faster, because operations...
Can I squash commits in Mercurial?
... can do this using mercurial without any extensions by Concatenating Changesets.
Alternately if you want to use an extension you could use:
The Collapse Extension
The Rebase Extension or
The Histedit Extension
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