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JS - get image width and height from the base64 code
...2fstackoverflow.com%2fquestions%2f17774928%2fjs-get-image-width-and-height-from-the-base64-code%23new-answer', 'question_page');
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JavaScript OOP in NodeJS: how?
...thod borrowing" instead of vertical inheritance. You don't need to inherit from a "class" to use its method on your class. For instance:
var method = List.prototype;
function List() {
}
method.add = Array.prototype.push;
...
var a = new List();
a.add(3);
console.log(a[0]) //3;
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converting Java bitmap to byte array
...he call to copyPixelsToBuffer the bytes are all 0... The bitmap returned from the camera is immutable... but that shouldn't matter since it's doing a copy.
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Difference between Python's Generators and Iterators
...t class Iterator with abstract methods __next__
We can get the iterators from the built-in objects (or custom objects) with the iter function:
>>> all(isinstance(iter(element), collections.Iterator) for element in (
(), [], {}, set(), frozenset(), '', b'', bytearray(), range(0), ...
Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
...
After you install redis, type from terminal:
redis-server
and you'll have redis running
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Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
... */
#endif
This is a preprocessor technique of preventing a header file from being included multiple times, which can be problematic for various reasons. During compilation of your project, each .cpp file (usually) is compiled. In simple terms, this means the compiler will take your .cpp file, ...
How do I create a new Git branch from an old commit? [duplicate]
I have a Git branch called jzbranch and have an old commit id: a9c146a09505837ec03b .
1 Answer
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What does a . in an import statement in Python mean?
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That's the new syntax for explicit relative imports. It means import from the current package.
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How to use putExtra() and getExtra() for string data
...ble, say str, which stores some string data. Now, I want to send this data from one activity to another activity.
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Android: java.lang.SecurityException: Permission Denial: start Intent
...reated an application containing GWVectraNotifier activity which is called from other applications to display Notification.
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