logo
Tags down

shadow

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]


Share : facebook icon twitter icon

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]);
}
console.log(arr);

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 :
document.querySelectorAll('[id^="serial[301888]"]');

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)
                              Answer.annotation_data
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 => {
    console.log(articleArray);
});
const articleArray = await articles();
console.log(articleArray);
const articles = () => {
    return fetch(url)
    .then(res => {
        if (!res.ok) {
            throw new Error("HTTP error " + res.status);
        }
        return res.json();
    })
    .then(post => post.articles);
};
Related Posts Related Posts :
  • WebSockets with functional components
  • Parse JSON string using node.js
  • How to make a select disabled in Laravel5?
  • How can I get the total number for an object's properties in typescript?
  • Three.js - antialiasing, rendering, fxaa
  • regex for valid web url and html telephone url
  • Second call to Mathjax typeset function from jQuery not working
  • I can't delete empty value of my String array
  • Sencha allowBlank config property is not applying for TextField widget
  • Ways to prevent survey respondents from inputting spaces as their first character
  • Forcing ~synchronous Node.js IPC
  • Why React.js doesn't bind it's function with this object by default
  • Javascript Affecting Image Position
  • Javascript eval ReferenceError is not defined
  • add <meta> tag to editor in prestashop 1.6
  • Javascript loop through object keys
  • How to write a function that recognises unbalanced brackets
  • Condition CSS based on OS
  • group array of objects by id
  • $(window) equivalent and other Jquery to Vannilla JS is not working
  • Send web push notification to all subscribers in one call
  • async script src inside script tag, GDPR complilance google ads
  • Modify Javascript object that API sends
  • Ajax call not triggering
  • How to get everything between two words
  • React Props for Handle Change not a Function
  • How i can iterate over nested section elements?
  • React Native ViewPager with a KeyboardAvoidingView as parent doesn't keep the keyboard up - iOS
  • List field contents not displaying with .val function
  • GET error 400 bad request on second axios api call
  • React & dealing with asynchronous state
  • How to see if an array has a value, and return true if it does. - JavaScript
  • Extract a phone number from a web page then do something with it
  • Unit testing ember-concurrency tasks and yields
  • Not able to read below JSON using Angular 7
  • Load Content for Bootstrap 4 Modal Externally Using JavaScript/ jQuery
  • How to add a material (.mtl) to an object (.obj) using three.js?
  • prevent remount when component is wrapped in parent
  • How to find the values form array of objects
  • How to send multiple data using ajax jquery?
  • Add two columns and display result in third column in HTML Table
  • Adding a class to an object depending on which file the object is being used
  • Manipulating SVG Path Coordinate with Vanilla JavaScript
  • how to fix heroku error while deploying an expressjs app?
  • Fetching past messages into a file
  • Check if click linked in array has a submenu key value. IF true run some code ELSE run other code
  • How to dynamically add vue bootstrap dropwdown list item?
  • How to solve "cannot set property of undefined" on JS?
  • why does focus loose from the html input element when i return input component from custom React Hooks?
  • Fail to set state REACT/JS: Cannot read property 'map' of undefined
  • Typescript, problem with "this" inside arrow functions and rxjs
  • How does website display notifications after its page closed?
  • Choose countries in html/js with translate
  • How to remove this image border?
  • Gatsby: Calling `touchNode` on page node throws 'TypeError: locationAndPageResources.pageResources is undefined'
  • Vue - make output from global function reactive
  • displaying currency symbol before value using data attribute
  • AJAX and head/foot updates best practice
  • How to use onclick function on button. When Button has no ID and Name, it only has class?
  • Passing process.stdout.write directly vs through callback gives different output?
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk