get element or elements check functions

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Wed Mar 22 2023 00:46:04 GMT+0000 (Coordinated Universal Time)

Saved by @davidmchale #get #element #function

export const getElement = (selection) => {
  const element = document.querySelector(selection);
  if (element) {
    return element;
  }
  throw new Error(
    `Please check "${selection}" selector, no such element exists`
  );
}


export const getAllElements = (elements) => {
    const allelements = document.querySelectorAll(elements);
    if(allelements){
      return allelements
    }
    throw new Error(`These ${elements} cannot be found`)
}

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@davidmchale

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#python #python #strings #vowels #function

Get vowels in strings

This method gets vowels (‘a’, ‘e’, ‘i’, ‘o’, ‘u’) found in a string.
   
#make a function:
def get_vowels(string):

#return is the keyword which means function have to return value: 
 return [each for each in string if each in 'aeiou']


#assign the words and function will return vowels words.
get_vowels('foobar') # ['o', 'o', 'a']


get_vowels('gym') # []

#python #function

Python when function - to apply a function when predicate(x) is True

def when(predicate, when_true):
  return lambda x: when_true(x) if predicate(x) else x
  
EXAMPLES
double_even_numbers = when(lambda x: x % 2 == 0, lambda x : x * 2)
double_even_numbers(2) # 4
double_even_numbers(1) # 1

#python #lists #function

Build a list using an iterator Python unfold function

def unfold(fn, seed):
  def fn_generator(val):
    while True: 
      val = fn(val[1])
      if val == False: break
      yield val[0]
  return [i for i in fn_generator([None, seed])]
  
  
EXAMPLES
f = lambda n: False if n > 50 else [-n, n + 10]
unfold(f, 10) # [-10, -20, -30, -40, -50]

#python #get #requests

Gets the prices of 5 top cryptocurrency prices

import json
import requests

apikey = '43979f1b-f353-4842-ad8a-ecb2735f3b71'

headers = {
    'X-CMC_PRO_API_KEY' : apikey,
    'Accepts' : 'application/json'
}

params = {
    'start' : '1',
    'limit' : '5',
    'convert' : 'USD'
}

url = 'https://pro-api.coinmarketcap.com/v1/cryptocurrency/listings/latest'

json = requests.get(url, params=params, headers=headers).json()

coins = json['data']

for coin in coins:
    print(coin['symbol'], coin['quote']['USD']['price'])

#html #tutorials #htmltutorisls #element #elementtutorisls

HTML tutorial for beginners

https://elementtutorials.com/html/html-tutorial.html

#get #element #function

get element or elements check functions

export const getElement = (selection) => {
  const element = document.querySelector(selection);
  if (element) {
    return element;
  }
  throw new Error(
    `Please check "${selection}" selector, no such element exists`
  );
}


export const getAllElements = (elements) => {
    const allelements = document.querySelectorAll(elements);
    if(allelements){
      return allelements
    }
    throw new Error(`These ${elements} cannot be found`)
}

#python #function

Python compose function - performs right-to-left function composition

from functools import reduce

def compose(*fns):
  return reduce(lambda f, g: lambda *args: f(g(*args)), fns)


EXAMPLES
add5 = lambda x: x + 5
multiply = lambda x, y: x * y
multiply_and_add_5 = compose(add5, multiply)

multiply_and_add_5(5, 2) # 15

#python #function #returnfunction

How to use of “return” keyword in a function

#define a function 
 1.Def cube(num)
      #write the formula of cube
      2.return num*num*num
     #give the number to calculate the cube 
     3.cube(3)
   # print the cube of that number simply by using print command
    4.print(cube(3))
     5.“return” keyword means that function have to return value

#python #python #function #return #allunique

All unique

#define function
defall_unique(lst):

   return len(lst) == len(set(lst))
   
x = [1,1,2,2,3,2,3,4,5,6]


y = [1,2,3,4,5]


all_unique(x) # False
all_unique(y) # True

#python #function #python #def

How to define function - by using keyword def

 # give a name of function after def
 1.def sayhi():
      #put the statement in the function  
     2.print(“hello world”)
#call function by name:
3.sayhi()


Output: 
Hello world

#python #python #function #return

How to use of “return” keyword in a function?

#define a function 
 Def cube(num)
      #write the formula of cube
      return num*num*num
     #give the number to calculate the cube 
     cube(3)
   # print the cube of that number simply by using print command
    print(cube(3))
     “return” keyword means that function have to return          value

#python #python #function #composition

Performs right-to-left function composition.

Use functools.reduce() to perform right-to-left function composition. The last (rightmost) function can accept one or more arguments; the remaining functions must be unary.
from functools import reduce

1.def compose(*fns):
  2.return reduce(lambda f, g: lambda *args: f(g(*args)), fns)
EXAMPLES
add5 = lambda x: x + 5
multiply = lambda x, y: x * y
multiply_and_add_5 = compose(add5, multiply)

multiply_and_add_5(5, 2) # 15

#python #python #function #bytesize #return

How to find byte size?

def byte_size(string):

  return(len(string.encode('utf-8')))

byte_size('😀’) # 4
byte_size('Hello World') # 11

#wordpress #google #tag #manager #function

WordPress add Google tag manager by function

add_action( 'wp_body_open', 'wpdoc_add_custom_body_open_code' );
 
function wpdoc_add_custom_body_open_code() {
    echo '<!-- Google Tag Manager (noscript) --> ... <!-- End Google Tag Manager (noscript) -->';
}

#textpreprocessing #nlp #pandas #function

replace function in dataframe

for c in df_drop.columns:
    df_drop[c] = df_drop[c].str.replace('[^\w\s]+', '')
df_drop = df_drop.astype(str)
df_drop.head()

get element or elements check functions

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