I have a Google App Engine webapp and would like you to review my settings file. Isn't it better to keep secret keys and provider data in the datastore or in a properties file rather than the code?
But this way is way faster; just putting the settings loose in a file with a rather large settings...
For my project I have rewritten a small lib for a Tree structure that was inspired by another one that I found here: https://github.com/wangzuo/js-tree/blob/master/index.js
The reason was largely because I prefer to work with an array structure rather than nested objects.
Could you advise me if ...
I commented on a person's question with the following markup:
...you have a single-bit mask that increments using `i <<= 1`, e.g. `for(i = 1; i < 1 << 16; i <<= 1)`...
but the way it appeared was
...you have a single-bit mask that increments using i <<= 1, e.g.for (i = 1; i < 1 << 16; i <<...
My business logic needs to know the CurrentUser in many cases, especially when checking permissions. In the past I am accessing the business logic classes only from a WCF project which stores the current user information in the OperationContext, and in the business logic I have a static class tha...
I am building web services for mobile applications and I am using Hibernate + spring + maven structure.
My Controller is like this :
@Controller
@RequestMapping(value = "/path", method = RequestMethod.POST)
public class Controller {
@Autowired
private ServiceInterface serviceObject;
...
I was trying to solve the LCS problem on a HackerRank exercise - https://www.hackerrank.com/challenges/common-child.
It's quite simple and straightforward, just print out the length of the LCS. I submitted this code :
s1 = raw_input()
s2 = raw_input()
lcs = [[0 for j in xrange(len(s2)+1)] for ...
I am working with the following code:
import numpy as np
def sigmoid(x):
return 1.0/(1.0 + np.exp(-x))
def sigmoid_prime(x):
return sigmoid(x)*(1.0-sigmoid(x))
def tanh(x):
return np.tanh(x)
def tanh_prime(x):
return 1.0 - x**2
class NeuralNetwork:
def __init__(self, l...
I have a sleep function which displays the time remaining in sec, some feedback would be appreciated
use warnings;
$x=$ARGV[0];
$|++;
$n=0;
# arguments could be 1, 1s , 1m or 1h
if($x=~/([0-9]+)([a-zA-Z]?)/)
{
$t = lc($2) ;
if($t eq "h"){$n = $1*3600;}
elsif( $t eq "m" ){$n = $1...
Recently I noticed that the idiomatic python two-dimensional array initialisation is extremely slow. I am wondering, is there a good, proper way of doing this simple task fast? Also, are those two variants equivalent?
here some code snippets using timeit
import timeit
A = 5000
B =...
The purpose of the data-structure is to manage person-objects.
Persons can be added at any time. But the order can't be changed afterward.
Only the deletion of a person is possible. Represents the case of cancellation.
The whole thing is intended to be as simple as possible.
Nevertheless: I'...
If you have a few minutes, most people know how to add and multiply two three-digit numbers on paper. Ask them to do that, (or to admit that they could, if they had to) and ask them to acknowledge that they do this task methodically: if this number is greater than 9, then add a carry, and so fort...
I made a function that should ease the making of new objects out of objects or arrays.
I extended underscore so thats why the _.
_.dictionary = function (obj, keyIteratee, valueIteratee) {
var newObj = new Object();
if (Array.isArray(obj)) {
var l...
usefully! I am is iOS coder! How can I use stack overflow in iOS?I use it firstly...so...
Im new in MySQLi and PHP.
Can someone tell why does my code not update or add any data into MySQL table? i've spend a lot time to reading and writing it but have no idea why is my code does not work. Appreciate every answer.
<?php
//connect
include ("db/connect.php");
//create new/edit
functio...
You need to design a circuit that perform the expansion of a 7-bit simple signed floating point (FP) number into an 8-bit 2's-complement encoded binary number. Assume that the input number is stored in an 8-bit shift register.
Input/Output - Number of bits - Definition
S. ...
Need help in improving my TSP program.
City Class
public class City
{
public int X { get; set; }
public int Y { get; set; }
public City(int x, int y)
{
X = x; Y = y;
}
public int GetDistance(City otherCity)
{
int deltaX = X - otherCity.X;
in...
I'm currently in the process of refactoring some code and I was wondering if I should use switch or if-else for the is code:
Switch
for (int i = 0; i < length; i++)
{
CameraStream stream = null;
var id = (Guid)CameraGridView.Rows[i].Cells[...
This question is part of a series solving the Rosalind challenges. For the previous question in this series, see Mendelian inheritance. The repository with all my up-to-date solutions so far can be found here.
The next part of the Rosalind challenges is basically asking for a Fibonacci solver,...
The task is: I get companies' information from a large CSV file and then I need to compare this information with each company in the database to know if the company is a new one or if it is already in the database.
The problem is: The information from the CSV file could contain some errors (wron...
I have implemented a generic dynamic array implementation using defines. As I am new to C, I am not sure whether the code has any flaws. The code is as follows,
#define INIT_CAPAC 5
#define INC_CAPAC 5
#define list(t) struct{ t* data; unsigned int count; unsigned int capac;}
#define list_init(l...
I need to add class "is_active" to all div's when I click on <div id="all-tags"> and remove class if I click again.
ONLY IF every div have class "is_active" then main div (<div id="all-tags">) have class "is_active".
In short check out my solution and you will understand what I need https://j...
I'm using Passport in Node.js app to authenticate user by email and password (login) and also by token.
Email and password are used only when user is logging in. Passport local strategy generates token when user email and password matched. Token will be later used for bearer token authentication...
I want to do this algorithm in matlab .. This algorithm is used for separate two sounds from each other .. Here is my code for the above algorithm :
[soundconv,fs] = audioread('C:\Users\Ali\Downloads\conv_mix.wav'); % 55000*2 matrix
soundco=soundconv'; % inverted to 2*55000
b=0.999999999999999...
I've to make a simple program that basically imitate an encoding algorithm. I've thought a frame like a struct composed by a 2D vector and a variable type (I or B) that define the kind of encoding.
struct Frame
{
char type;
vector<vector<int>> grid;
};
Then I've built a vector of fr...
I have the following unit test that is testing predicate logic in a repository (Note: mockOpportunityRepository.Setup) :
[Test]
public void GetFollowedByUserIdShouldGetTheUsersFollowedOpportunitiesFromOpportunityFollowRepositoryAndThenGetThoseFollowedOpportunities()
{
const int ExpectedOppor...
Should I horizontally align class member variables' declarations like this:
class A
{
int myInt;
double myDouble;
SomeVeryLongType myVeryLongType;
ShortType myShotType;
};
or I should write like this?
class A
{
int myInt;
...
I have tried to implement a Bloom Filter in Java here.
https://github.com/srirammanoj/skynet/tree/master/bloomfilter
I just wanted to know if my implementation can be called 'thread-safe' , and if there is an improvement to be made on the locking I have used here. I opted for locks instead of ...
I have the following code which I'm looking to compress down as much as possible, and make it more modular and reusable:
<!-- Function to load in info from different docs -->
function loadDoc(UrlString) {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp...
This is an implementation of optional<T> from C++17, it is mostly standard conforming.
I'm looking for a review on efficiency, correctness and performance.
Sample usage
#include "optional.h"
int main()
{
util::optional<std::string> s0{ "abc" };
util::optional<std::string> s1;
if ...
Problem:
Write a program that manages robot factory settings.
When robots come off the factory floor, they have no name.
The first time you boot them up, a random name is generated, such as
RX837 or BC811.
Every once in a while we need to reset a robot to its factory
settin...
New to all of this. Using linux, python 3.4 and openpyxl and doing the exercises from ATBS.
Why am I not getting a fully populated dictionary? I am only getting the results from one row. The excel file was taken from the Automate TBS website.
the new .py file gives me:
allData = {'WY': {'We...
I've recently deleted a java answer of mine on Code Review, that started like this:
private Person(PersonBuilder builder) {
Stop. Red flag. A PersonBuilder would build a Person; it knows about a Person. The Person class shouldn't know anything about a PersonBuilder - it's just an immutabl...
I wrote a query for SEDE that I think is pretty cool. It uses the currently available graphing capabilities (scatter plots) to create a bar graph. I have used it as the subject for a self-answer on MSO.
This query finds potential "recommendation questions" based on the words in the title.
The g...
