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Is JavaScript an untyped language?
...the word "type" and says that it has seven types (Undefined, Null, Number, String, Boolean, Symbol, and Object) is really confusing. Most people do not want to distinguish this notion of type from the PLT def.
– Ray Toal
Jun 15 '15 at 1:07
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How to define “type disjunction” (union types)?
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First, declare a class with the types you wish to accept as below:
class StringOrInt[T]
object StringOrInt {
implicit object IntWitness extends StringOrInt[Int]
implicit object StringWitness extends StringOrInt[String]
}
Next, declare foo like this:
object Bar {
def foo[T: StringOrInt](x:...
How to split a dos path into its components in Python
I have a string variable which represents a dos path e.g:
19 Answers
19
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How do I put variables inside javascript strings?
... accepted answer... though preferably it would also mention ES6's template strings (which admittedly didn't exist in 2011). We really should be able to wiki-hijack old questions to keep them updated. :\
– Kyle Baker
Jun 21 '16 at 16:03
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Save all files in Visual Studio project as UTF-8
...w DirectoryInfo(@"...").GetFiles("*.cs", SearchOption.AllDirectories)) {
string s = File.ReadAllText(f.FullName);
File.WriteAllText (f.FullName, s, Encoding.UTF8);
}
Only three lines of code! I'm sure you can write this in less than a minute :-)
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How do I define a method which takes a lambda as a parameter in Java 8?
...tion(int a, int b);
}
public class MyClass {
public static void main(String javalatte[]) {
// this is lambda expression
TwoArgInterface plusOperation = (a, b) -> a + b;
System.out.println("Sum of 10,34 : " + plusOperation.operation(10, 34));
}
}
Using Java fun...
How do I format a string using a dictionary in python-3.x?
I am a big fan of using dictionaries to format strings. It helps me read the string format I am using as well as let me take advantage of existing dictionaries. For example:
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Viewing complete strings while debugging in Eclipse
While debugging Java code, Strings in the views "Variables" and "Expressions" show up only till a certain length, after which Eclipse shows "..."
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SQL Data Reader - handling Null column values
...!SqlReader.IsDBNull(indexFirstName))
{
employee.FirstName = sqlreader.GetString(indexFirstName);
}
That's your only reliable way to detect and handle this situation.
I wrapped those things into extension methods and tend to return a default value if the column is indeed null:
public static str...
How to read a text file into a string variable and strip newlines?
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To join all lines into a string and remove new lines, I normally use :
with open('t.txt') as f:
s = " ".join([x.strip() for x in f])
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