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Difference between method and function in Scala
...log post, but I'm posting a briefing here for reference.
First, let's see what the Scala Specification tell us. Chapter 3 (types) tell us about Function Types (3.2.9) and Method Types (3.3.1). Chapter 4 (basic declarations) speaks of Value Declaration and Definitions (4.1), Variable Declaration and...
What are the uses for Cross Join?
... @Rakesh, good catch, I was thinking of something other than what I was typing. Fixed.
– Dave DuPlantis
Sep 18 '13 at 21:11
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What is purpose of the property “private” in package.json?
I'm learning node.js and express, I am wondering what is the property "private" in ./package.json file used for?
1 Answer
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How to check if a string contains only digits in Java [duplicate]
...parse string as a long value is inefficient and unreliable, and may be not what you need.
What I suggest is to simply check if each character is a digit, what can be efficiently done using Java 8 lambda expressions:
boolean isNumeric = someString.chars().allMatch(x -> Character.isDigit(x));
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What is eager loading?
What is eager loading? I code in PHP/JS but a more generalised answer will be just fine.
4 Answers
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What is Prism for WPF?
...oklet, as given on the MSDN site? Does it include any libraries, if so for what exactly?
It is a book, but also includes the libraries for support (on the GitHub site).
Is Prism an MVVM framework? Should I be using it as the "official Microsoft MVVM framework" over others out there or my own?
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What does the “+” (plus sign) CSS selector mean?
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what will be the difference between p + p and p > p
– Muhammad Rizwan
Nov 28 '16 at 17:30
7
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What is DOM Event delegation?
... bound onclick="..." to each <li> you would get the same effect.
So what's the benefit?
Imagine you now have a need to dynamically add new <li> items to the above list via DOM manipulation:
var newLi = document.createElement('li');
newLi.innerHTML = 'Four';
myUL.appendChild(newLi);
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How do I convert from int to String?
... smell as it suggests the author doesn't know about the two methods above (what else might they not know?).
Java has special support for the + operator when used with strings (see the documentation) which translates the code you posted into:
StringBuilder sb = new StringBuilder();
sb.append("");
s...
What does “Could not find or load main class” mean?
...... not something I just made up to confuse you :-)
Here is an example of what a java command should look like:
java -Xmx100m com.acme.example.ListUsers fred joe bert
The above is going to cause the java command to do the following:
Search for the compiled version of the com.acme.example.L...