Simple doubts. Usually I see this syntax:
require('../lib/dbconnect')(config);
But I do not understand why I use these parentheses in this way.
(....)(....);
Can anyone explain what it's all about?
These days I was testing some Javascript features in Google Chrome 50 and I noticed that it has already been added to arrow function for callbacks.
So:
$.each([1, 2, 3], x => x * 2);
// [2, 4, 6]
Formerly it would have...
What is wrong here? I can not see the error.
#include <stdio.h>
void Main(void)
{
int a = 9;
int b = 3;
int c = 0;
int *p = &b;
c = a/*p;
printf("%d \n", c);
}
In another one of my tests, I noticed that in PHP there is a problem when trying to access the static method of a class, when that class is instantiated in a property of another class;
More specifically, I'm having problem with :: - Sco...
I came across a C situation I do not know and had never seen anyone use before. Within the main() method there are several keys, I believe to isolate the code however there is a same variable that in each block of code receives a value an...
def clinic():
print "Voce acabou de entrar na clinica!"
print "Voce entra pela porta a esquerda (left) ou a direita (right)?"
answer = raw_input("Digite left (esquerda) ou right (direita) e pressione 'Enter'.").lower()
if answer =...
In PHP, can echo receive parentheses because it considers this an expression? Apparently, some language features do not seem to be standardized and therefore can be used in a number of ways.
For example:
echo ('teste');
Or else:...
I've always used WITH in my queries, however, I've never understood exactly why '; ' before the WITH clause is required.
The error is very succinct, but gives an idea that WITH requires the previous statement to be clos...
I'm reading the book "Training in C ++ Language", but this teaching everything error. The hello world of the book simply does not compile:
#include <iostream.h>
void main() {
cout << "Primeiro Programa";
}
Follow the pict...
Sometimes I see a code in which the programmer has written a non-zero decimal, such as 0.5 being .5 , for example:
var decimal1 = 0.5;
var decimal2 = .5;
console.log(decimal1 == decimal2);
console.log(decimal1, decimal2);...