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What is the maximum possible length of a .NET string?
...estion as far as I can see, so an authoritative answer might require some knowledge of internals. Would the maximum change on a 64-bit system?
...
Git - Undo pushed commits
...some commited changes already pushed to remote and pulled from the server. Now, I want to undo those changes. So I could just git checkout to the commit before the changes and commit the new changes, but I'm guessing that there will be problems to push them again to remote. Any suggestion on how s...
How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...sk RVM to list the ruby versions available to install by running rvm list known.
In the output you should now see:
# MRI Rubies
...
[ruby-]1.9.2[-p320]
...
The square brackets around the patch level indicate that this is currently RVM's default patch level for ruby 1.9.2.
Finally, to install th...
Equation (expression) parser with precedence?
...l, you actually have a hope at scaling up later, showing other people you know that parsers are the domain of parsing tools.
Update:
People here have offered much sound advice. My only warning against skipping the parsing tools or just using the Shunting Yard algorithm or a hand rolled recursive...
Using Git with an existing Xcode project
...d .
git commit -m "Initial commit"
Restart Xcode.
The repository should now be set up, and you will be able to manage it in xcode 4.
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Can IntelliJ IDEA encapsulate all of the functionality of WebStorm and PHPStorm through plugins? [cl
...gurations that are hooked to iOS Simulator etc.
RubyMine has all of these now, IDEA does not. So I would have to generate a RubyMotion project outside of IDEA, then setup an IDEA project and hook up to that source folder etc and God knows what else.
What JetBrains should do is have a licensing mod...
setState vs replaceState in React.js
... that this.state is {foo: 42}
this.setState({bar: 117})
// this.state is now {foo: 42, bar: 117}
this.setState({foo: 43})
// this.state is now {foo: 43, bar: 117}
this.replaceState({baz: "hello"})
// this.state. is now {baz: "hello"}
Take note of this from the docs, though:
setState() d...
Can I export a variable to the environment from a bash script without sourcing it?
... is to source the variable:
. ./export.bash
or
source ./export.bash
Now when echoing from main shell it works
echo $VAR
HELLO, VARABLE
We will now reset VAR
export VAR=""
echo $VAR
Now we will execute a script to source the variable then unset it :
./test-export.sh
HELLO, VARABLE
--
...
What does it mean if a Python object is “subscriptable” or not?
...which can be replayed.
For example, see: Application Scripting Framework
Now, if Alistair didn't know what he asked and really meant "subscriptable" objects (as edited by others), then (as mipadi also answered) this is the correct one:
A subscriptable object is any object that implements the __ge...
MySQL Query to select data from last week?
...above will be like that: SELECT id FROM tbl WHERE DATE > DATE_SUB(DATE(NOW()), INTERVAL DAYOFWEEK(NOW())+6 DAY) AND DATE <= DATE_SUB(DATE(NOW()), INTERVAL DAYOFWEEK(NOW())-1 DAY)
– Xman Classical
Feb 1 '16 at 2:41
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