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When to use “new” and when not to, in C++? [duplicate]
When should I use the "new" operator in C++? I'm coming from C#/Java background and instantiating objects is confusing for me.
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Can you write nested functions in JavaScript?
I am wondering if JavaScript supports writing a function within another function, or nested functions (I read it in a blog). Is this really possible?. In fact, I have used these but am unsure of this concept. I am really unclear on this -- please help!
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sys.argv[1] meaning in script
...n simplified terms what the sys.argv[1] represents. Is it simply asking for an input?
9 Answers
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Cannot find module cv2 when using OpenCV
...st do run these commands inside Terminal/CMD:
conda update anaconda-navigator
conda update navigator-updater
Then the issue for the instruction below will be resolved
For windows if you have anaconda installed, you can simply do
pip install opencv-python
or
conda install -c https://conda.binst...
Is it good practice to make the constructor throw an exception? [duplicate]
Is it a good practice to make the constructor throw an exception?
For example I have a class Person and I have age as its only attribute. Now
I provide the class as
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Remote JMX connection
...ost is the loopback interface, you need to application to bind to your network interface.
You can use the netstat to confirm that it is not bound to the expected network interface.
You can make this work by invoking the program with the system parameter java.rmi.server.hostname="YOUR_IP", either...
Meaning of epsilon argument of assertEquals for double values
...ilon would be 0 (100% accuracy, no exceptions). If you want a margin of error (say for degrees) you could set epsilon to 1 meaning that, for example, 64.2° is the same as 64.8° (since abs(64.8-64.2) < 1)
– Pieter De Bie
Sep 25 '15 at 8:14
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How to join two sets in one line without using “|”
Assume that S and T are assigned sets. Without using the join operator | , how can I find the union of the two sets? This, for example, finds the intersection:
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What is the difference between loose coupling and tight coupling in the object oriented paradigm?
...e the exact difference between loose coupling and tight coupling in Object oriented paradigm?
16 Answers
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AngularJS : Where to use promises?
...service. It took me a while to understand it.
Let's set aside AngularJS for a moment and just consider the Facebook API calls. Both the API calls use a callback mechanism to notify the caller when the response from Facebook is available:
facebook.FB.api('/' + item, function (result) {
if (...