I want to write some functions that are cross-browser and for this I need to know the name and current version of the browser on the client through a function, what would be the best way to do it in pure Javascript?
I would like to know how to prevent my desktop application from running again, that is, having 2 instances of my application running.
Thank you!
Is it possible to declare a variable that contains an if statement? The following pseudocode (written only with the idea of illustrating the example), represents the idea that is pursued, that is, that the variable m takes a different value depending on the value of j.
j = [1, 2, 3]
m = if j[0]:
[{'b': 0.0, 'x': 0.0, 'm': 0.02} for _ in range(100)]
if j[1]:
[{'b': 0.5, 'x': 0.5, 'm': 0.02} for _ in range(100)]
if j[2]:
[{'b': 1.0, 'x': 1.0, 'm': 0.02} for _ in range(100)]
I have a problem with the use of the '>>' character, I would like to know what function it actually fulfills, what it does, taking into account something like:
System.out.println(5>>1);
the result is 2 but why? I understand that it is also called the Bits operator but it really compares the bits of these numbers and determines what?
I have the following code:
public static void main(String[] args) {
String a1 = "aa";
String a2 = "bb";
String a3 = "cc";
String a4 = "dd";
for(int i = 0; i<3; i++){
String a5 = ("a"+ i);
System.out.println("a"+i +"= "+a5);
}
}
I would like to know how you can somehow print the value of the variables above in for
that way or you can't because there it prints a1, a2 and so on and what I want is to print the value of a1
that is aa
.
Thanks for the help in advance