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Difference between toFixed() and toPrecision()?
I'm new to JavaScript and just discovered toFixed() and toPrecision() to round numbers. However, I can't figure out what the difference between the two is.
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What is the correct MIME type to use for an RSS feed?
Is one MIME type preferable to ensure compatibility with RSS readers and other scrapers?
7 Answers
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Where am I? - Get country
An android mobile actually does know quite well where it is - but is there a way of retrieving the country by something like a country code?
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What does Redis do when it runs out of memory?
This might be easy question but I am having a hard time finding the answer. How does Redis 2.0 handle running out of maximum allocated memory? How does it decide which data to remove or which data to keep in memory?
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Difference between volatile and synchronized in Java
...iable as volatile and always accessing the variable in a synchronized(this) block in Java?
4 Answers
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How to deal with a slow SecureRandom generator?
...f you want true random data, then unfortunately you have to wait for it. This includes the seed for a SecureRandom PRNG. Uncommon Maths can't gather true random data any faster than SecureRandom, although it can connect to the internet to download seed data from a particular website. My guess is tha...
Apache Spark: The number of cores vs. the number of executors
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To hopefully make all of this a little more concrete, here’s a worked example of configuring a Spark app to use as much of the cluster as
possible: Imagine a cluster with six nodes running NodeManagers, each
equipped with 16 cores and 64GB of memory....
Inversion of Control vs Dependency Injection
According to the paper written by Martin Fowler , inversion of control is the principle where the control flow of a program is inverted: instead of the programmer controlling the flow of a program, the external sources (framework, services, other components) take control of it. It's like we plug so...
How can a Java variable be different from itself?
I am wondering if this question can be solved in Java (I'm new to the language). This is the code:
10 Answers
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Check if an image is loaded (no errors) with jQuery
...he jQuery library to manipulate image thumbnails contained in a unordered list. When the image is loaded it does one thing, when an error occurs it does something else. I'm using jQuery load() and error() methods as events. After these events I check the image DOM element for the .complete to m...