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Installing Python 3 on RHEL
...4-*.noarch.rpm
# 4. Install the collection:
yum install rh-python34
# 5. Start using software collections:
scl enable rh-python34 bash
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Converting file size in bytes to human-readable string
...you
divide by 1024, you probably use the IEC prefix names. The problem
starts with dividing by 1024. Many applications use the SI prefix
names for it and some use the IEC prefix names. The current situation
is a mess. If you see SI prefix names you do not know whether the
number is divided...
Chmod recursively
...
Give 0777 to all files and directories starting from the current path :
chmod -R 0777 ./
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Changing three.js background to transparent or other color
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I came across this when I started using three.js as well. It's actually a javascript issue. You currently have:
renderer.setClearColorHex( 0x000000, 1 );
in your threejs init function. Change it to:
renderer.setClearColorHex( 0xffffff, 1 );
Upd...
LaTeX: Prevent line break in a span of text
...ting to see. A~better place..
This can ensure that you don't have a line starting with a figure number (without the Fig. part) or with an uppercase A.
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Const before or const after?
To start you probably know that const can be used to make either an object's data or a pointer not modifiable or both.
7 ...
How to clear/remove observable bindings in Knockout.js?
...keeping my data was the most effective way to do this.
Basically you can start with some global var which contains data to be rendered via the ViewModel:
var myLiveData = ko.observableArray();
It took me a while to realize I couldn't just make myLiveData a normal array -- the ko.oberservableArr...
ASP.NET Temporary files cleanup
...e. Otherwise, it will keep a lock on it. Seems safe to delete. Once you start the app pool back up and hit the app again, the files will be regenerated. I'm running into an issue where it's trying to reference a file that doesn't exist there and haven't gotten to the bottom of it yet.
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Random record from MongoDB
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Starting with the 3.2 release of MongoDB, you can get N random docs from a collection using the $sample aggregation pipeline operator:
// Get one random document from the mycoll collection.
db.mycoll.aggregate([{ $sample: { ...
ReactJS state vs prop
...rop the inner component had will change. So, when the re-rendering process starts, and shouldComponentUpdate gets invoked, this.props.value.foo will be equal to nextProps.value.foo, because in fact, this.props.value references the same object as nextProps.value.
Consequently, since we'll miss the c...