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“Variable” variables in Javascript?
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To reference a variable in javascript with only a string, you can use
window['your_variable_name']
You can set and reference variables, and objects in variables too.
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Regex for string contains?
What is the regex for simply checking if a string contains a certain word (e.g. 'Test')? I've done some googling but can't get a straight example of such a regex. This is for a build script but has no bearing to any particular programming language.
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Cast Object to Generic Type for returning
...ssCastException e) {
return null;
}
}
public static void main(String[] args) {
String k = convertInstanceOfObject(345435.34);
System.out.println(k);
}
and the corresponding byte code is:
public static <T> T convertInstanceOfObject(java.lang.Object);
Code:
0: ...
How do you access command line arguments in Swift?
...t standard library contains a struct CommandLine which has a collection of Strings called arguments. So you could switch on arguments like this:
for argument in CommandLine.arguments {
switch argument {
case "arg1":
print("first argument")
case "arg2":
print("second ar...
Difference between final static and static final
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private static final String API_RTN_ERROR= "1";
private final static String API_RTN_ERROR= "1";
static private final String API_RTN_ERROR= "1";
static final private String API_RTN_ERROR= "1";
final static private String API_RTN_ERROR= "1";
final ...
How to extract text from a string using sed?
My example string is as follows:
5 Answers
5
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Bootstrap 3: Keep selected tab on page refresh
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You may want to add string bracket on the selector, like 'a[href="' + location.hash + '"]' . Stumbled upon a syntax error.
– asdacap
Feb 2 '16 at 10:16
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Get css top value as number not as string?
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You can use the parseInt() function to convert the string to a number, e.g:
parseInt($('#elem').css('top'));
Update: (as suggested by Ben): You should give the radix too:
parseInt($('#elem').css('top'), 10);
Forces it to be parsed as a decimal number, otherwise strings ...
Can functions be passed as parameters?
...es:
package main
import "fmt"
// convert types take an int and return a string value.
type convert func(int) string
// value implements convert, returning x as string.
func value(x int) string {
return fmt.Sprintf("%v", x)
}
// quote123 passes 123 to convert func and returns quoted string.
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Is it possible to use getters/setters in interface definition?
...r getters and setters are used, like this:
interface IExample {
Name: string;
}
class Example implements IExample {
private _name: string = "Bob";
public get Name() {
return this._name;
}
public set Name(value) {
this._name = value;
}
}
var example = new ...