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Automatically generating variables in AngularJS with specific names


Automatically generating variables in AngularJS with specific names

By : cheikh
Date : November 22 2020, 02:42 PM
To fix the issue you can do I have this controller: , Yes, in your 'foo' function:
code :
for(var i = 0; i < data.length; i++) {
    $scope[data[i]];
}


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Generating Variables' Names

Generating Variables' Names


By : Rahul Gupta
Date : March 29 2020, 07:55 AM
will be helpful for those in need I want to generate some variables using for command. look at code below: , No, not possible, not exactly. However, this is possible:
code :
std::map<char,int> vars;    
for (char ch='a'; ch<='z'; ch++)
      vars[ch] = 0;

std::cout << vars['a'] << vars['b'] << vars['c'];
std::map<std::string,int> vars;
for (int i=0; i<10; i++)
    vars["New" + std::to_string(i) + "End"] = 0;
std::cout << vars["New5End"];
Automatically generating data annotations from camel case field names

Automatically generating data annotations from camel case field names


By : user3675092
Date : March 29 2020, 07:55 AM
it should still fix some issue Using a combination of the information found on the blog here, and the excellent camel-case split regex here, I was able to work this out. The concept is that you create a custom flavour of the default DataAnnotationsModelMetadataProvider. In the case where a property does not have a display name already, this custom provider kicks in and creates one for you (with spaces).
First, create a class:
code :
using System;
using System.ComponentModel;
using System.Text.RegularExpressions;
using System.Web.Mvc;

namespace MyProject.Whatever
{
    public class CustomDataAnnotationsModelMetadataProvider : DataAnnotationsModelMetadataProvider
    {
        protected override ModelMetadata GetMetadataForProperty(Func<object> modelAccessor, Type containerType, PropertyDescriptor propertyDescriptor)
        {
            ModelMetadata metadata = base.GetMetadataForProperty(modelAccessor, containerType, propertyDescriptor);
            if (metadata.DisplayName == null)
            {
                metadata.DisplayName = SplitCamelCase(metadata.GetDisplayName());
            }
            return metadata;
        }

        private string SplitCamelCase(string str)
        {
            return Regex.Replace(
                Regex.Replace(
                    str,
                    @"(\P{Ll})(\P{Ll}\p{Ll})",
                    "$1 $2"
                ),
                @"(\p{Ll})(\P{Ll})",
                "$1 $2"
            );
        }
    }
}
protected void Application_Start()
{
    //Other stuff.
    ...
    ModelMetadataProviders.Current = new CustomDataAnnotationsModelMetadataProvider();
}
Python automatically generating variables

Python automatically generating variables


By : Alfa Dhaval Thakkar
Date : March 29 2020, 07:55 AM
should help you out Question , So you're actually creating the variables in the for loop:
code :
for label, friend_count, minute_count in zip(labels, friends, minutes):
for values in zip(labels, friends, minutes): 
x = [1, 2, 3, 4]
a, b, c, d = x
a, b = x
a, *b = x
Generating certain methods for variables automatically

Generating certain methods for variables automatically


By : Andrey Gorbenko
Date : March 29 2020, 07:55 AM
help you fix your problem You are asking for various sorts of trouble with code readability, optimizations and loss of encapsulation, not to mention losing compile-time checks for correct variable names. Regardless, you can create a generic setter and getter (in this case for LinkedLists) through reflection like this:
code :
 public void setter(String name, LinkedList value) throws IllegalArgumentException {
    try {
      Field field = getClass().getDeclaredField(name);
      field.setAccessible(true);
      field.set(this, value);
      field.setAccessible(false);
    } catch (NoSuchFieldException | IllegalAccessException e) {}
  }

  public LinkedList getter(String name) {
    LinkedList ret = null;
    try {
      Field field = getClass().getDeclaredField(name);
      field.setAccessible(true);
      Object object = field.get(this);
      if (object instanceof LinkedList) {
        ret = (LinkedList) object;
      }
      field.setAccessible(false);
    } catch (NoSuchFieldException | IllegalAccessException e) {
      e.printStackTrace();
    }
    return ret;
  }
Turn field names into column names for specific variables and fill them with certain logic

Turn field names into column names for specific variables and fill them with certain logic


By : Gareth Joanna Hawkes
Date : March 29 2020, 07:55 AM
Hope this helps Not sure I fully understand the question, but the code below produces your example dataframe.
code :
library(tidyverse)
product<-c("ab","ab","ab","ac","ac","ac")
shop<-c("sad","sad","sad","sadas","fghj","xzzv")
category<-c("a","a","a","c","b","b")
tempr<-c(35,35,14,24,14,5)
value<-c(0,0,-6,8,4,0)
store<-data.frame(product,shop,category,tempr,value)


store %>% filter(value != 0 ) %>%  # Remove 0 values 
  mutate(combined =  paste0(tempr,"(",value,")")) %>% # Combine columns for spread
  select(-tempr,-value) %>%  #
  spread(shop,combined) # spread to create shop columns and temr/value values. 

  #       product category  fghj    sad     sadas
  # 1      ab        a      <NA>    14(-6)  <NA>
  # 2      ac        b       14(4) <NA>     <NA>
  # 3      ac        c      <NA>   <NA>     24(8)
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