Math.random() returns value greater than one?
Date : March 29 2020, 07:55 AM
hope this fix your issue The edge case occurs when you happen to generate a very small number, expressed with an exponent, like this for example 9.546056389808655e-8. Combined with parseInt, which interprets the argument as a string, hell breaks loose. And as suggested before me, it can be solved using Math.floor. var test = 9.546056389808655e-8;
console.log(test); // prints 9.546056389808655e-8
console.log(parseInt(test)); // prints 9 - oh noes!
console.log(Math.floor(test)) // prints 0 - this is better
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(Math.random()*x)+y returns numbers greater than x+y
Date : March 29 2020, 07:55 AM
Hope that helps So I've been using HTML canvas and Javascript to create random images. Most of it is running pretty smoothly, but recently I've been encountering problems. , It happens because you're passing strings as arguments. getRandomInt('0', '256') // 1540
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Math.floor(Math.random() * val.length) returns a letter not a number
Date : March 29 2020, 07:55 AM
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Why does math.random(999999999999) returns 1 in Lua?
Tag : math , By : user184415
Date : March 29 2020, 07:55 AM
like below fixes the issue This problem is surely because math.random treats the input arguments passed in Lua 5.1 and/or 5.2. From [mathlib.c] 1: As you may know in C, a standard int can represent values -2,147,483,648 to 2,147,483,647. Adding +1 to 2,147,483,647, like in your use-case, will overflow and wrap around the value giving -2,147,483,648. The end result is negative since you're multiplying a positive with a negative number.
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How to explain that Observable.of(Math.random()) always returns the same value?
Date : March 29 2020, 07:55 AM
Hope this helps The value passed to of is prepared when the code is read. This is only a JS thing nothing related to RxJs in particular. Even if you don't subscribe to the observable. Ex: const MyMathRandom = () => {
console.log('MyMathRandom has been run');
return Math.random();
}
const test = of(MyMathRandom())
const source = defer(() => of(Math.random()))
source.subscribe(x => console.log(x));
source.subscribe(x => console.log(x));
source.subscribe(x => console.log(x));
0.20757387233599833
0.6417609881625241
0.09756371489129778
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