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Infinite scrolling with React JS
...s is a great technique... thx! However, it fails when the recordHeight is different for each row. I'm experimenting with a fix for that situation. I'll post it if I get it to work.
– manalang
Jun 26 '14 at 18:42
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Why does int num = Integer.getInteger(“123”) throw NullPointerException?
...ring nm): Determines the integer value of the system property with the specified name. If there is no property with the specified name, if the specified name is empty or null, or if the property does not have the correct numeric format, then null is returned.
In other words, this method has noth...
sometimes my file just freezes in my vi |vim, what happened?
Sometimes when I edit my file using vi or vim, my file just freezes. Even if I type Ctrl+C or Ctrl+D , it still freezes there. I kill -9 <pid> from another terminal, the pid is killed, but the file still freezes there.
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How do I remove/delete a virtualenv?
...rtual environment. Simply deactivate it and rid your application of its artifacts by recursively removing it.
Note that this is the same regardless of what kind of virtual environment you are using. virtualenv, venv, Anaconda environment, pyenv, pipenv are all based the same principle here.
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Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
...s with RubyGems 1.6.0+ and Rails < 2.3.11:
gem update --system 1.5.3
If you had previously downgraded to an even earlier version and want to update to 1.5.3, you might get the following when trying to run that:
Updating RubyGems
ERROR: While executing gem ... (RuntimeError)
No gem names ...
Why does a return in `finally` override `try`?
...esn't always execute in all cases due to a pretty serious browser bug. Specifically – if an exception is thrown in a try-finally block that isn't surrounded by a higher level try-catch, then the finally block won't execute. Here's a test case jsfiddle.net/niallsmart/aFjKq. This issue was fixed in ...
What is a domain specific language? Anybody using it? And in what way?
I guess I am looking for some kind of intro and see if anybody have used it. Are there any particular advantages of using it?
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How can I combine two commits into one commit? [duplicate]
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You want to git rebase -i to perform an interactive rebase.
If you're currently on your "commit 1", and the commit you want to merge, "commit 2", is the previous commit, you can run git rebase -i HEAD~2, which will spawn an editor listing all the commits the rebase will traverse. You ...
How can I clear an HTML file input with JavaScript?
...ction. demo: http://jsbin.com/muhipoye/1/
function clearInputFile(f){
if(f.value){
try{
f.value = ''; //for IE11, latest Chrome/Firefox/Opera...
}catch(err){ }
if(f.value){ //for IE5 ~ IE10
var form = document.createElement('form'),
...
Git diff -w ignore whitespace only at start & end of lines
I love to use git diff -w to ignore whitespace differences. But, I just noticed that it ignores even whitespace differences in the middle of lines. How could I only ignore whitespace differences that come at the start (^) or end ($) of lines?
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