javaScript change string char's position

Question

Let's say i have three variables:

a, b, c

and i set them such values:

2,1,3

I have such string:

ilovemama

how could i change char position, via block's of three, in my case i have three blocks:

ilo
vem
ama

let's try on first block:

1 2 3
i l o

and i must change this position's via my a,b,c:

2 1 3
l i o

And so over, and then concat this block's into one line... I think that i explain it normally.

I can do this on jQuery, but i can't imagine, how to do this on pure JS. i try a little bit, but this is without sense(

• rdodev: Is this a homework assignment?
• byCoder: @rdodev maybe yes, i know what you would say now, i'm a bad boy, go and read, SO is not for that... But! SO is for helping people, and i want to know how to do this, even if not all code, but some explain i need... I think you don't know every thing on this planet too, and need sometime help...
• byCoder: @rdodev did you give me -1? if so;than thank you, i believe life will turn this bumerang to you :)
• rdodev: It's not a matter of helping. It's a matter of helping with assignments not being fair to your professor and your peers that you seek answers to your homework here.
• byCoder: @rdodev remember, we are people! not robots, you will get bumerang, belive! it's not hard to help, becouse if i could i will not ask, also if i will have some code ideas i will post here, some little help is good, you are angry( where you from? some little help, and i go further, just one stop on begining... it's bad that people are so rude now( you should not be king Crown will not fall...

Answer 1

var string = 'some string'
 a = string.charAt(0),
 b = string.charAt(1),
 c = string.charAt(2); // and so on
var newString = b + a + c; //oms
var otherString = c + b + a; //mos

.charAt(0) will select the first leter of the string(the one with index 0) and so on. assigning the values to vars you can manipulate the string as I understand you want to do

for blocks, doing;

var string='some string';
var a = string.slice(0, 3),
 b = string.slice(3, 7),
 c = string.slice(7, 11); and so on

Then the same

var newString = c +a +b; // will be = 'ringsome st' 

To find an Index as you request in the comment you can use;

var str = "Hello There",
indexOfr = str.indexOf("r"); 
console.log(indexOfr); // outputs 9

A function could be;

function dynamo(string) {
var len = string.length-1,
 parts = 3,
 whereToCut = Math.floor(len/parts);
var a = string.slice(0, whereToCut), 
 b = string.slice(whereToCut, (whereToCut *2)), 
 c = string.slice((whereToCut *2), len+1);
return b + a + c;
//(or you could hwere some code to see what order you want, i dont understand your request there) 
}
dynamo('what do you really want to do??');
//returns "u really wwhat do yoant to do??"

• Santiago Rebella: thats what you want to accomplish, but of course is just an example and not the actual entire work done with the proper string
• byCoder: as i thing i also need to split by blocks (for example i have string with 6 chars), and then,but! otherString could be other order, and how to be than?
• byCoder: and so on main trouble is that it must be "dynamic", not hardcode ^)
• Santiago Rebella: that is not what you asked, please explain how dynamic needs to be, as the solution would be the same but in a for loop or an event handler or I dont know, dynamic means a lot
• byCoder: see, you hardcode, if i have 3 blocks (9 chars), but what will be if i have 299? string.slice(0, 3), will be not so good )) also c +a +b; is hardcode too, becouse i could have a+c+b etc, according to a,b,c value's, as in question 2,1,3