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Best approach to converting Boolean object to string in java
... not null you can use third option which is
String str3 = b.toString();
and its code looks like
public String toString() {
return value ? "true" : "false";
}
If you want to be null-safe use String.valueOf(b) which code looks like
public static String valueOf(Object obj) {
return (ob...
Bash set +x without it being printed
...
I had the same problem, and I was able to find a solution that doesn't use a subshell:
set -x
command
{ set +x; } 2>/dev/null
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Apply CSS style attribute dynamically in Angular JS
...ly.
Expression which evals to an object whose keys are CSS style names and values are corresponding values for those CSS keys. Since some CSS style names are not valid keys for an object, they must be quoted.
ng-style="{color: myColor}"
Your code will be:
<div ng-style="{'width':'20px', ...
Detect if called through require or directly by command line
...hich I don't have control over) that does this, but I need to require() it and have it act as though it was called directly. Basically, I need to fool something that uses that test into thinking it was called directly.
– Kevin
Nov 17 '15 at 22:17
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How to specify the default error page in web.xml?
...authentication, having a disabled directory listing, using custom servlets and code which can possibly throw unhandled exceptions or does not have all methods implemented, then you'd like to set it for HTTP errors 401, 403, 500 and 503 respectively.
<error-page>
<!-- Missing login --&g...
Bash: infinite sleep (infinite blocking)
...
sleep infinity does exactly what it suggests and works without cat abuse.
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Design Patterns: Factory vs Factory method vs Abstract Factory
...uctor".
Let's say you want to be able to create two kinds of Fruit: Apple and Orange.
Factory
Factory is "fixed", in that you have just one implementation with no subclassing. In this case, you will have a class like this:
class FruitFactory {
public Apple makeApple() {
// Code for creati...
user authentication libraries for node.js?
...an do password authentication for a user (using a custom backend auth DB), and associate that user with a session.
15 Answe...
How to detect Safari, Chrome, IE, Firefox and Opera browser?
I have 5 addons/extensions for FF, Chrome, IE, Opera, and Safari.
24 Answers
24
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Argparse optional positional arguments?
...arguments:
dir
optional arguments:
-h, --help show this help message and exit
-v
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