I'm trying to simulate a simple evolution thing using binary code. Each individual in the "gene pool" has their own unique string in binary code.

In order to have them mate, I need to take half of one string, and the other half of another and merge them. The problem is, I don't know how to split a string in two equal halves, and they are totally random.

Help would be appreciated, thanks!

I'm trying to simulate a simple evolution thing using binary code. Each individual in the "gene pool" has their own unique string in binary code.

In order to have them mate, I need to take half of one string, and the other half of another and merge them. The problem is, I don't know how to split a string in two equal halves, and they are totally random.

Help would be appreciated, thanks!

• javascript
• string
• split

Share Improve this question Follow asked Jul 7, 2015 at 22:15 XeliphoXelipho 4711 silver badge55 bronze badges 5

• 1 find the length of the string. Then calc the middle num = length/2. Then find the substring from 0 to num and from num to len(str). – Avinash Raj Commented Jul 7, 2015 at 22:17
• Substring could help you. – Alp Commented Jul 7, 2015 at 22:17
• Oh, I was not aware that that is how sub-strings work. – Xelipho Commented Jul 7, 2015 at 22:18
• Can the length be an odd number? That is the only special case. – user3735633 Commented Jul 7, 2015 at 22:18
• How would you guarantee equal halves though, say the length was even – Oliver Barnwell Commented Jul 7, 2015 at 22:18

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2 Answers 2

Sorted by: Reset to default 4

Well I would get the total length of the string and get the first half by doing

myString.slice(firstIndex, secondIndex)

I would make the firstIndex be 0 and the secondIndex equal to myString.length / 2. That will return the first half of the string.

The second half of the string would be

myString.slice(myString.length / 2, myString.length)

So, all together:

const partOne = myString.slice(0, myString.length / 2)
const partTwo = myString.slice(myString.length / 2, myString.length)

string half1 = value.Substring(0, value.length/2);
string half2 = value.Substring(value.length/2);