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Check if a number has a decimal place/is a whole number
...function Test()
{
var startVal = 123.456
alert( (startVal - Math.floor(startVal)) != 0 )
}
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How to generate a random number in C++?
...ance;
}
bool method() { return true; };
int rand(unsigned int floor, unsigned int ceil){
random::uniform_int_distribution<> rand_ = random::uniform_int_distribution<> (floor,ceil);
return (rand_(rng_));
}
// Is not considering the millisecons
tim...
How to do integer division in javascript (Getting division answer in int not float)? [duplicate]
...
var answer = Math.floor(x)
I sincerely hope this will help future searchers when googling for this common question.
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How can I shuffle an array? [duplicate]
... var j, x, i;
for (i = a.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i + 1));
x = a[i];
a[i] = a[j];
a[j] = x;
}
return a;
}
ES2015 (ES6) version
/**
* Shuffles array in place. ES6 version
* @param {Array} a items An array containing ...
How do I get a human-readable file size in bytes abbreviation using .NET?
... long bytes = Math.Abs(byteCount);
int place = Convert.ToInt32(Math.Floor(Math.Log(bytes, 1024)));
double num = Math.Round(bytes / Math.Pow(1024, place), 1);
return (Math.Sign(byteCount) * num).ToString() + suf[place];
}
Also in c#, but should be a snap to convert. Also I rounded to...
How do you round UP a number in Python?
...all int to convert it:
>>> int(math.ceil(5.4))
6
BTW, use math.floor to round down and round to round to nearest integer.
>>> math.floor(4.4), math.floor(4.5), math.floor(5.4), math.floor(5.5)
(4.0, 4.0, 5.0, 5.0)
>>> round(4.4), round(4.5), round(5.4), round(5.5)
(4.0...
How to change default text file encoding in Eclipse?
... problem when I received a html to put inside my project and rename it to .jsp. To solve the problem, I needed to what people above already said, that is, to change text encoding in Eclipse Preferences. However, before renaming the files to .jsp, it was necessary to include the following line in the...
What does ~~ (“double tilde”) do in Javascript?
...lds:
function(x) {
if(x < 0) return Math.ceil(x);
else return Math.floor(x);
}
only if x is between -(231) and 231 - 1. Otherwise, overflow will occur and the number will "wrap around".
This may be considered useful to convert a function's string argument to a number, but both because of ...
Truncate number to two decimal places without rounding
... I'd still output the result of the above using toFixed, though, so: (Math.floor(value * 100) / 100).toFixed(2). As you probably know, weird precision things can happen with floating point values (and on the other side of the spectrum, if the number happens to be 15, sounds like the OP wants 15.00)....
Generate unique random numbers between 1 and 100
...y do this:
var arr = [];
while(arr.length < 8){
var r = Math.floor(Math.random() * 100) + 1;
if(arr.indexOf(r) === -1) arr.push(r);
}
console.log(arr);
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