Why Object.entries(array) and array.entries() return a different result?

I am currently learning Javascript and I can’t find the answer : Why Object.entries(array) and array.entries() return a different result ? const game = { team1: ‘Bayern Munich’, team2: ‘Borrussia Dortmund’, players: [ [ ‘Neuer’, ‘Pavard’, ‘Martinez’, ‘Alaba’, ‘Davies’, ‘Kimmich’, ‘Goretzka’, ‘Coman’, ‘Muller’, ‘Gnarby’, ‘Lewandowski’, ], [ ‘Burki’, ‘Schulz’, ‘Hummels’, ‘Akanji’, ‘Hakimi’, ‘Weigl’, ‘Witsel’, ‘Hazard’,… Read More Why Object.entries(array) and array.entries() return a different result?

June 23, 2022 MRLeave a comment

Built-in isidentifier() function inconsistent results

I’m using built-in isidentifier() function to find Unicode chars allowed for variable names (I know about xid_start and xid_continue chars, don’t need explanation on that). The following program has certain inconsistency with it’s results on different systems. I’m very confused and interested about the reasoning. chars = [] for char in range(0x110000): char = chr(char)… Read More Built-in isidentifier() function inconsistent results

June 1, 2022 MRLeave a comment

How to write multiple lists into a text file where each list is written into a new line?

I have two python lists: a_list = [1, 2, 3] b_list = [4, 5, 6] How can I do the following: create new text file —> convert lists to json string —> write lists into the file (each list should have its own line in the file) —> open the file —> read each line… Read More How to write multiple lists into a text file where each list is written into a new line?

May 26, 2022 MRLeave a comment

How to force git's pager to wrap long lines?

On most machines where I use git, long lines in the output of commands like git diff and git show are wrapped. On one machine, though, long lines are truncated, and I have to use the left and right arrow keys to scroll the screen horizontally. I don’t like this behavior at all, and I… Read More How to force git's pager to wrap long lines?

May 24, 2022 MRLeave a comment

Finding average value in list of dictionaries based on another unique value

I have a list of dictionaries that have an "index" and a "weight" value. I want to average the dictionaries based on any unique index. So, with the below example, how can I find the average weight for any given index (e.g. 0, 1, 250, etc.)? There will be 8 total elements for each index.… Read More Finding average value in list of dictionaries based on another unique value

May 24, 2022 MRLeave a comment

How to convert a comma to dot automatically?

When the user enters a comma in the INPUT, I would like the comma to be automatically transformed in a dot. Is it possible? <label>Number </label> <input type="number" maxlength="5" /> Here is a reproduction -> Link >Solution : <input> elements of type number are used to let the user enter a number. They include built-in… Read More How to convert a comma to dot automatically?

May 23, 2022 MRLeave a comment

React Js Components imported but not displaying

I have two components ‘footer’ and ‘header’ in the components directory. It imports properly but I am not able to display it. App.js import header from "./components/header"; import footer from "./components/footer"; function App() { return ( <> <header /> <main> <h1>Welcome to Proshop</h1> </main> <footer /> </> ) } export default App; header.js import React… Read More React Js Components imported but not displaying

May 22, 2022 MRLeave a comment

how to loop through each element in list and increment by one

Hello i want to ask how to loop through each element and increment every time by one this is what i want first i want to sum 0 , 1, 3 ,6 , 10 and after that sum can somebody help me about that i don’t know how to tell if it is loop through… Read More how to loop through each element in list and increment by one

May 21, 2022 MRLeave a comment

Constructors as object keys

I’m trying to construct a map of types and callbacks so I started with an structure like this: type Instantiable<T = unknown> = new (…args: any[]) => T; type SingleParamFn<TInput = unknown, TOuput = unknown> = (arg: TInput) => TOuput; type TypesRecord<T> = { type: Instantiable<T>, callback: SingleParamFn<T> }; type TypesMap = TypesRecord[]; // This… Read More Constructors as object keys

May 19, 2022 MRLeave a comment

How to get rid of a white outline around header?

I created a header with <div></div> in html, but when I tested it there is a white outline around header. I created header in <head></head>. Image of header: header HTML code of my site: .header { padding: 20px; text-align: left; background-color: skyblue; color: white; font-size: 20px; font-family: Arial, Helvetica, sans-serif; } <!DOCTYPE html> <html> <title>… Read More How to get rid of a white outline around header?

May 18, 2022 MRLeave a comment

Dev solutions

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Tag: built-in