15 lines
413 B
Markdown
15 lines
413 B
Markdown
### primes
|
|
|
|
It generates primes till a given number ```m
|
|
|
|
Explain briefly how the snippet works.
|
|
|
|
```js
|
|
const primes = num =>{
|
|
var arr = Array.from({length:num-1}).map((x,i)=> i+2);
|
|
var sqroot = Math.floor(Math.sqrt(num));
|
|
var numsTillSqroot = Array.from({length:numb-1}).map((x,i)=> i+2);
|
|
arra.forEach(x => arr = arr.filter(y => ((y%x)!==0)||(y== x)));
|
|
return arr;
|
|
}// primes(10) -> [2,3,5,7]
|
|
``` |