JavaScript-specific method to count the number of 1's in binary split method_javascript skills

The code is as follows:

Copy code The code is as follows:

function g(n){
var n = n.toString(2);
var count = 0;
for(var i=0;i{
if(n[i] = = "1")
count ;
}
return count;
}

I thought it was very troublesome to write like this, but I suddenly thought if I could use the split method of js. Realize the calculation of the number of 1, and the parameter of split is regular

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Discover the original There are two errors in the code.


First, under IE, strings cannot use array subscripts to access the value at a specified position, and can only use the charAt(index) method.

The second is under Chrome and Opera, split(

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