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Python - Extracting elements from an array similar to JavaScript ES6 Destructuring

By : MattPo
Date : September 15 2020, 11:00 PM
To fix the issue you can do With JavaScript ES6 syntax I can to set variables from array: , Yes, you can unpack lists like so:
code :
myList = [1, 2, 3]
a, b, c = myList
print(a) # 1
print(b) # 2
print(c) # 3
// javascript:
let myArray = [1, 2, 3];
let [first, ...other] = myArray;
console.log(first); // 1
console.log(other); // [2, 3]
myList = [1, 2, 3]
first, *other = myList
print(first) # 1
print(other) # [2, 3]
myList = [1, 2, 3, 4, 5]
a, *other, last = myList
print(a)      # 1
print(other)  # [2, 3, 4]
print(last)   # 5
a, b, *other = (1, 2, 3, 4, 5)
print(a)     # 1
print(b)     # 2
print(other) # [3, 4, 5]

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extracting last elements from 2d array javascript

By : Panda Photography
Date : March 29 2020, 07:55 AM
seems to work fine Ok so I'm trying to create a very basic machine translation program in JavaScript as a learning project. I am breaking sentences into 2D arrays ala... , Takes the workWith array and pushes the last element to a new array.
code :
var arr = [];
for (var i = 0, l = workWith.length; i < l; i++) {
  arr.push(workWith[i][workWith[i].length - 1]);

Get all elements with similar id array in javascript

By : user2540100
Date : March 29 2020, 07:55 AM
wish helps you You can combine JavaScript's document.querySelectorAll with CSS's ^= attribute selector:
code :

Python | extracting elements from 2D array

By : jwoods486
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I am not even sure how to word my question due to me being quite new to python. The basic concept of what I want to accomplish is to be able to search for something in a 2D array and retrieve the right value as well as the values associated with that value (sorry for my bad explanation) , You can do a simple for loop, and use the built-in in statement:
code :
def retrieve_sub_array(element):
 for sub_array in array:
  if element in sub_array:
   return sub_array

Extracting parts of array elements using python

By : Pellaeon Lin
Date : March 29 2020, 07:55 AM
wish helps you I am working to extract all integer values from a specific column (left, top, length and width) in a csv file with multiple rows and columns. I have used pandas to isolate the columns I am interested in but Im stuck on how to use a specific parts of an array. , Use:
code :
import ast

d = {'Answer.annotation_data': ['[{"left":171,"top":0,"width":163,"height":137,"label":"styrofoam container"},{"left":222,"top":42,"width":45,"height":70,"label":"chopstick"}]',
                                '[{"left":170,"top":10,"width":173,"height":157,"label":"styrofoam container"},{"left":222,"top":42,"width":45,"height":70,"label":"chopstick"}]']}
df = pd.DataFrame(d)

print (df)
0  [{"left":171,"top":0,"width":163,"height":137,...
1  [{"left":170,"top":10,"width":173,"height":157...
#convert string data to list of dicts if necessary
df['Answer.annotation_data'] = df['Answer.annotation_data'].apply(ast.literal_eval)
def get_val(val):
    comb = [[y.get(val, np.nan) for y in x] for x in df['Answer.annotation_data']]
    return pd.DataFrame(comb).add_prefix('{}_'.format(val))

cols = ['left','top','width','height']
df1 = pd.concat([get_val(x) for x in cols], axis=1)
print (df1)
   left_0  left_1  top_0  top_1  width_0  width_1  height_0  height_1
0     171     222      0     42      163       45       137        70
1     170     222     10     42      173       45       157        70

Extracting array elements from JSON (javascript)

By : Christy Fabian
Date : March 29 2020, 07:55 AM
Does that help Your articles fucntion returns a promise. You have to consume the promise (more on MDN):
code :
articles().then(articleArray => {
const articleArray = await articles();
const articles = () => {
    return fetch(url)
    .then(res => {
        if (!res.ok) {
            throw new Error("HTTP error " + res.status);
        return res.json();
    .then(post => post.articles);
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