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Node.js on multi-core machines
...st is up-to-date as of 2012-09-02 (newer than above).]
Node.js absolutely does scale on multi-core machines.
Yes, Node.js is one-thread-per-process. This is a very deliberate design decision and eliminates the need to deal with locking semantics. If you don't agree with this, you probably don't ye...
Remove a file from a Git repository without deleting it from the local filesystem
... answered Jul 17 '09 at 14:57
bdonlanbdonlan
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How to exit a function in bash
...m an outer function with an error without exiting you can use this trick:
do-something-complex() {
# Using `return` here would only return from `fail`, not from `do-something-complex`.
# Using `exit` would close the entire shell.
# So we (ab)use a different feature. :)
fail() { : "${__fail_...
How do you get the length of a list in the JSF expression language?
...ize() or getLength() which JSF and most other standards require, you can't do what you want.
There's a couple ways to do this.
One: add a function to your Bean that returns the length:
In class MyBean:
public int getSomelistLength() { return this.somelist.length; }
In your JSF page:
#{MyBean.so...
How do I run all Python unit tests in a directory?
...l show the two methods, and I hope someone out there knows how to actually do this correctly.
15 Answers
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How to redirect to a 404 in Rails?
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Don't render 404 yourself, there's no reason to; Rails has this functionality built in already. If you want to show a 404 page, create a render_404 method (or not_found as I called it) in ApplicationController like this:
de...
How do I view cookies in Internet Explorer 11 using Developer Tools
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This doesn't give you the current state of the browsers cookie store. You could re-construct what the browser should have with the network tool, but like a lot of devs i need to test functionality when a cookie goes missing or is...
How do I move an existing window to a new tab?
Is there a way to take an existing window (split) and put it into a new tab?
4 Answers
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Replace tabs with spaces in vim
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IIRC, something like:
set tabstop=2 shiftwidth=2 expandtab
should do the trick. If you already have tabs, then follow it up with a nice global RE to replace them with double spaces.
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Rails :include vs. :joins
This is more of a "why do things work this way" question rather than a "I don't know how to do this" question...
8 Answers
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