I've written a simple grep program as my first foray into Elixir. Could you please suggest some ways in which the code could make better use of the language?
defmodule Exgrep do
def exgrep(path \\ ".", substring) do
case File.ls(path) do
{:ok, ls} ->
Enum.map(ls, fn new_path ->
Suppose we've got a list, any arbitrary nested list. I'd like to check if the (int) elements in the list are identical.
Examples:
# elements are identical, as it's all 1s
board = [[1],[1,1],[1,1,1]] #True
board = [[1,1],[1,1],[[1,1,1]]] #True
# elements are not identical
board = [1,2,3] #Fa...
I am trying to write a program where if I call
get_bin_pos(19.4) ==> output as 20
get_bin_pos(13.4) ==> output as 20
get_bin_pos(31.4) ==> output as 40
I wrote something like below, it looks bad, any suggestion in optimizing it ?
Switch statement for this would be more readable, but we don't...
please help me, how to do this question?
Multithreaded Excel + VBScript Timer
Download Multithreaded Excel VBScript Timer - Snake Game.xlsm
After reviewing these post: Snake in Excel in… VBA? and Drawing a snake using arrow keys in Excel using VBA, I decided to work on creating a VBA Timer.
The typical Timers patterns used in the VB...
I recently wrote a small Python 3 script to count the number of projects in a Scratch studio:
import re, functools
import requests
PARSE_RE = re.compile(r"""^
(?: http:// | https:// | // )? # optional header
scratch\.mit\.edu/studios...
Program to select browser from existing browsers and then open gmail login page ask for credentials and then compose mail and send then validate the sender in sent item, record this whole activity so that this will happen automatically from 2nd time in python 3.6. Please help me in this code.
Hi I want to pull information from a JSON API but I would like to cache/store this information until at least an hour has passed whereby the api will be called again and refreshed. My problem comes when I would like to store the datetime from the method was called last. How do I instantiate my da...
I intend to accept all of the following answers:
y
Y
yes
YES
Yes
plus mixtures, such as yeS, yES, which I didn't intend to accept but it's a consequence of my code
the same applies to No and its variants
#include <iostream> // std::cout, std::cin
#include <string> // std::string
#...
Array A contains the elements, A1,A2...AN. And array B contains the elements, B1,B2...BN. There is a relationship between Ai and Bi, for 1 = i = N, i.e.,
any element Ai lies between 1 and Bi.
Let the cost S of an array A be defined as:
You have to print the largest possible value o...
I'm generating a combination of sub lists without using itertools.
Here's what I've come up with:
input = [[1, 2], [2, 3], [4, 3]]
output = [[1, 2, 2, 3], [1, 2, 4, 3], [2, 3, 4, 3]]
def getList():
a = [[1, 2], [2, 3], [4, 3]]
return(a)
c=[] # output list
l = l...
I would like to document the function, so it's clearly visible what should i pass and what i will receive. Is that a correct approach?
import aiohttp
import asyncio
import async_timeout
from typing import Type
async def fetch(
session: Type[aiohttp.ClientSession],
url: Type(str)
) -> ...
I have a script and I need to optimize it to reduce the execution time of this, currently, 6000 lines takes 1 minute and 38 seconds, I would like to reduce the time to take much less and I do not know how to optimize it anymore, I paste the script:
#! /bin/bash
function charge_files ()
{
datab...
I need to check if a given variable is either "get" or "post". If it's neither then I should throw an error.
My preference is for:
if (!['get', 'post'].includes(x)) {
throw new Error('OhGodWhy')
}
A team mate of mine prefers this one:
if (x !== 'get' && x !== 'post') {
throw new Error('O...
The below given program is of cosine value. Since I am fairly new to the C++ language, I didn't refer the advanced programs for this and tried to build it based on it's expansion.
NOTE : I should mention that I use Turbo C3 compiler for all my coding so the code may look different
This code sh...
I'm fairly new and I'm making a rails app that allows users to create dinners and allow a number of guests that can join. Other users can click a button in the dinners#show to join that dinner as a guest. Here's my approach for this:
#guest.rb
belongs_to :user
belongs_to :dinner
#dinn...
I am self learning programming by reading Programming, Principles, and Practises by Bjarne Stroustrup. I have solved a drill. Please review my code and give suggestions.
Drill
Write a program that:
Accepts numbers with units m, cm, ft, and in and rejects other units.
Keeps a record of all the...
I have a table called alerts and is related to a table called coin (coin can have many alerts)
I would like to return a list of alerts but also return a subquery count of how many alerts that coin has
Here is my query, I would love some feedback on how it can be improved.
context.Alerts
...
I have written python code below which is working fine but it's taking time to download file. Anybody could help me to optimise the below code and make it more efficient and faster.
import urllib.request
import shutil
path1="path"
path2="path"
path3="zpath"
path4="path"
path5="path"
path6=...
I am creating a generic PHP handler, or "dispatcher", for Ajax calls made from Javascript running on the page served by PHP. The handler will take posted data and, depending on a value, decide how to route the call further. WordPress is being used, but my question is not specific to WordPress (if...
I'm learning about the MVP and ICommand design patterns as I'd like to use them in my own projects. I've cobbled this very simple WinForm application together to hopefully demonstrate that I'm using the patterns in the right way.
I was wondering if someone who is more familiar with both pattern...
I'm trying to create polymorphic comments for Question and Answer, but commentable_type and commentable_id never get passed when I hit the "create" button on the "create comment" form. I can successfully create a new comment through the rails console, but not through the form (currently I'm testi...
I'm trying to make a picture's location reset when it gets to a certain location and I thought that the
if(x == 557 && y == 533){
x = 300;
y = 300;
};
},1000);
statement would reset the x and y coordinates but I was wrong...
var canvas = document.querySelector("#myCanvas");
var conte...
