logo
down
shadow

Class method input variables


Class method input variables

By : Aarti Mahajan
Date : October 19 2020, 08:10 AM
To fix this issue In this example, (b) is not very useful as a member function. It could just as easily be a free function:
code :
def square(input_var):
    return input_var ** 2
# Here a free function makes the most sense because the operation is 'pure'
# i.e. it has no side effects and requires no state besides its input arguments
def square(value):
    return value ** 2

class LoggedCalculator(object):
    def __init__(self, logger):
        self.__logger = logger

    # (a) makes more sense here because it depends on class state and doesn't need to change
    # its behavior by taking in some parameter
    def get_logger(self):
        return self.__logger

    # (b) makes more sense here because we rely on a mixture of class state and some other input
    def square(self, value):
        result = square(value) # Re-use free function above
        self.__logger.info('{}^2 = {}'.format(value, result))
        return result

calc = LoggedCalculator(logging.getLogger())
calc.square(4)  # This requires an instance of LoggedCalculator
square(2)       # This can be called anywhere, even if you don't have a logger available


Share : facebook icon twitter icon
Ruby: Accessing class instance variables from one class in another class's class method

Ruby: Accessing class instance variables from one class in another class's class method


By : user2752987
Date : March 29 2020, 07:55 AM
seems to work fine If you want to create a new type of initializer for BClass, you can do the following:
code :
class AClass
  attr_accessor :avar

  def initialize(input)
    @avar = input
  end
end

class BClass
  attr_accessor :bvalue

  def self.build(aclass)
    bclass = self.new
    bclass.bvalue = aclass.avar
    bclass
  end
end

aclass = AClass.new 'ruby'
bclass = BClass.build aclass
I dont understand how to pass and retrieve variables from method in one class to other method in other class

I dont understand how to pass and retrieve variables from method in one class to other method in other class


By : Tim Dean
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I am working on OOP C++ program and I'm bit struggling. I'm trying to create a program that demonstrates use of default and non-default constructors and pointers. I'm trying to do default constructor first. , This part is not going to work
code :
void Book::setAuthorName(string first, string last)
{
    Author author;

    author.setFirstName(first);
    author.setLastName(last);
}
class Book {
    Author m_Author;  // This is your member variable that you can store author data in

};
change function to a class with method for setting input variables of function

change function to a class with method for setting input variables of function


By : Ben Ingrum
Date : March 29 2020, 07:55 AM
Hope this helps I think this is not bad idea to make a class from my function, even if later i find that the function is a better choice, i can write a helper function over of my function class like this:
code :
result Func(A a,B b,C c,D d,E e)
{
func f;
f.setA(a);
f.setB(b);
......
return f.execute();
}
C++ When i call a method from the method of another class it works but doesn't edit the first method's class' variables

C++ When i call a method from the method of another class it works but doesn't edit the first method's class' variables


By : user2151037
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further You need to declare the parameters as references, because otherwise you will be passing a copy instead of the original object, any change wont be reflected, until you receive references:
code :
bool exploration(SpaceShip& sps){ ... }
bool select(SpaceShip& sps){ ... }
how to create a template class that has two variables which we will take input from users and that the input values may

how to create a template class that has two variables which we will take input from users and that the input values may


By : SamiÅhl
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further how to create a template class that has two variables which we will take input from users and that the input values may be of any type. , You need to take two template arguments:
Related Posts Related Posts :
  • How to exit/terminate a job earlier and handle the raised exception in apscheduler?
  • python, print intermediate values while loop
  • python to loop over yaml config
  • D3.js is not recognized by PyCharm
  • Access the regularization paths obtained from ElasticNetCV in sklearn
  • Pattern table to Pandas DataFrame
  • Get the earliest date from a column (Python Pandas) after csv.reader
  • Get SystemError: Parent module '' not loaded, cannot perform relative import when trying to import numpy in a Cython Ext
  • Bash or Python : Append and prepend a string recursively in all .tex files
  • Changing a certain index of boolean list of lists change others, too
  • complex dataframe filtering request on the last occurence of a value in Panda/Python [EDIT]
  • How to repeatedly get the contents of a Text widget every loop with tkinter?
  • How to call the tornado.queues message externally
  • How can I use regex in python so that characters not included are disallowed?
  • Discarding randmly scattered empty spaces in pandas data frame
  • Get sums grouped by date by same column filtered by 2 conditions
  • Element disappears when I add an {% include %} tag inside my for loop
  • Django Rest Framework with either a slug or a pk lookup field for the DetailAPIView
  • Flask doesn't stream on Lambda
  • Generate all permutations of fixed length where the elements come from two different sets
  • Making function for calculating distance
  • How to handle multiprocessing based on the limit of CPU's
  • Django - static files is not working
  • Remove x axis and y axis black lines with matplotlib
  • tkinter: assigning multiple functions to one button
  • flask-jwt-extended: Fake Authorization Header during testing (pytest)
  • Setting pandas dataframe value based on row and column conditions
  • swig char ** as a pointer to a char *
  • Confusion over `a` and `b` attributes from scipy.stats.uniform
  • How can I do groupy.apply() without sort my index?
  • Querying Google Cloud datastore with ancestor not returning anything
  • Read value from one thread in Python: queue or global variable?
  • Django - context process query being repeated 102 times
  • Convert a list of images and labels to np array to train tensorflow
  • Lambda not supporting NLTK file size
  • Numpy ndarray image pixel mean for pixel values greater than zero: Normalizing image
  • Understanding output of np.corrcoef for two matrices of different sizes
  • Finding longest perfect match between two strings
  • what is wrong with my cosine similarity? Tensorflow
  • How to manage user content in django?
  • Receiving unsupported operand error while comparing random number and user input.
  • How to wrap the process of creating start_urls in scrapy?
  • How to mark 'duplicated sequence' in pandas?
  • Boolean indexing on multidimensionnal array
  • Unmodified column name index in patsy
  • Cleaner way to unpack nested dictionaries
  • Importing a python module to enable a script to be run from command line
  • Maya Python read and set optionMenu value via variable
  • How can I bind a property to another property in Kivy?
  • Python extracting specific line in text file
  • How to implement n-body simulation with pymunk?
  • Python / matplotlib: print to resolution and without white space / borders / margins
  • Sum up the second value from one dictionary with all values from another dictionary
  • Robot Framework: Open a chrome browser without launching URL
  • Generate inline Bokeh scatterplots in Jupyter using a for loop
  • Group list of dictionaries python
  • Efficient way to apply multiple Boolean mask to set values in a column using pandas
  • Lazy evaluation of a Python dictionary
  • id of xpath is getting changed every time in selenium python 2.7 chrome
  • Matplotlib RuntimeWarning displaying a 3D plot
  • shadow
    Privacy Policy - Terms - Contact Us © voile276.org