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How to iterate over a JavaScript object?
...can iterate on your properties by index: yourobject[keys[i]] :
for (let i=300; i < keys.length && i < 600; i++) {
console.log(keys[i], yourobject[keys[i]]);
}
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Why can tuples contain mutable items?
...the overall tuple isn't hashable either. For example, t = ('red', [10, 20, 30]) isn't hashable.
The last example shows a 2-tuple that contains a string and a list. The tuple itself isn't mutable (i.e. it doesn't have any methods that for changing its contents). Likewise, the string is immutable b...
Very simple log4j2 XML configuration file using Console and File appender
... <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
</Console>
<File name="MyFile" fileName="all.log" immediateFlush="false" append="false">
<PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{...
Changing my CALayer's anchorPoint moves the view
...
139
The Layer Geometry and Transforms section of the Core Animation Programming Guide explains the ...
Importing from builtin library when module with same name exists
...ppropriate way to load a module directly from a file path for python >= 3.5:
import importlib.util
import sys
# For illustrative purposes.
import tokenize
file_path = tokenize.__file__ # returns "/path/to/tokenize.py"
module_name = tokenize.__name__ # returns "tokenize"
spec = importlib.util...
Overriding the java equals() method - not working?
...
329
In Java, the equals() method that is inherited from Object is:
public boolean equals(Object o...
Check if a Windows service exists and delete in PowerShell
...
238
You can use WMI or other tools for this since there is no Remove-Service cmdlet until Powershel...
Make first letter of a string upper case (with maximum performance)
...f the string.
– flindeberg
Aug 26 '13 at 14:22
3
Awesome - Using Linq makes it very clear what th...
Making the iPhone vibrate
...
DDPWNAGE
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answered Jan 18 '11 at 14:11
linuxbuildlinuxbuild
14.8k44 g...
Get only part of an Array in Java?
.... (This index may lie outside the array)
E.g.:
//index 0 1 2 3 4
int[] arr = {10, 20, 30, 40, 50};
Arrays.copyOfRange(arr, 0, 2); // returns {10, 20}
Arrays.copyOfRange(arr, 1, 4); // returns {20, 30, 40}
Arrays.copyOfRange(arr, 2, arr.length); // returns {30, 40, 5...