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Single vs double quotes in JSON
...# mixing single and double quotes
data = {'jsonKey': 'jsonValue',"title": "hello world"}
# get string with all double quotes
json_string = json.dumps(data)
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How to tell if node.js is installed or not
... I wanted to see if it was actually working. So I executed a script called hello.js. It went as such:
7 Answers
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Accessing constructor of an anonymous class
...tVar(String var){myVar=var; return this;} //Returns self instane
}.setVar("Hello").method(3);
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How to remove non-alphanumeric characters?
...guages and scripts as well as A-Z:
preg_replace('/[^\p{L}\p{N} ]+/', '', 'hello-world'); // helloworld
preg_replace('/[^\p{L}\p{N} ]+/', '', 'abc@~#123-+=öäå'); // abc123öäå
preg_replace('/[^\p{L}\p{N} ]+/', '', '你好世界!@£$%^&*()'); // 你好世界
Note: This is a very old, but...
split string only on first instance of specified character
...yString = myString.substring(myString.indexOf('_')+1)
var myString= "hello_there_how_are_you"
myString = myString.substring(myString.indexOf('_')+1)
console.log(myString)
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Full screen background image in an activity
...ontent"
android:layout_height="wrap_content"
android:text="Hello"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="There"/>
</LinearLayout>
</RelativeLayout>
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How to remove line breaks (no characters!) from the string?
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$str = "
Dear friends, I just wanted so Hello. How are you guys? I'm fine, thanks!<br />
<br />
Greetings,<br />
Bill";
echo str_replace(array("\n", "\r"), '', $str); // echo $str in a single line
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PHP Constants Containing Arrays?
...p
class app{
private static $options = array(
'app_id' => 'hello',
);
public static function config($key){
return self::$options[$key];
}
}
In file, where I need constants.
require('config.php');
print_r(app::config('app_id'));
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Putting an if-elif-else statement on one line?
...n Python, but only for expressions, not for statements:
>>> a = "Hello" if foo() else "Goodbye"
Edit:
Your revised question now shows that the three statements are identical except for the value being assigned. In that case, a chained ternary operator does work, but I still think that i...
Error “The connection to adb is down, and a severe error has occurred.”
I've spent days trying to launch any Android program. Even "Hello World" gives me the same error:
39 Answers
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