detecting digits

[i8bit]

Here's a tough question for you today forums

So let's say you have the number, 482 (just as an example)

PHP Code:

this.fullnumber = 482; 


How would I tell the client to detect what number each digit is?
The first digit being 2, the second being 8, and the third being 4.

SO

PHP Code:

this.fullnumber = 482;
this.digitone = //first digit
this.digittwo = //second digit
this.digitthree = //third digit 


this.fullnumber will fluctuate so I need the client to detect what number each digit is....If this is even possible.

[Starfire2001]

Even though you are dealing with an integer substring should work.

PHP Code:

this.fullnumber = 482;
this.digitone = this.fullnumber.substring(2,1); // 2
this.digittwo = this.fullnumber.substring(1,1);  // 8
this.digitthree = this.fullnumber.substring(0,1); // 4 


[i8bit]

Originally Posted by Starfire2001

Even though you are dealing with an integer substring should work.

PHP Code:

this.fullnumber = 482;
this.digitone = this.fullnumber.substring(2,1); // 2
this.digittwo = this.fullnumber.substring(1,1);  // 8
this.digitthree = this.fullnumber.substring(0,1); // 4 


Do you mind explaining the substring a bit more? What is the (2,1) (1,1) and (0,1)?

[Starfire2001]

Originally Posted by i8bit

Do you mind explaining the substring a bit more? What is the (2,1) (1,1) and (0,1)?

From http://gscript.graal.net/substring

Syntax: string.substring(index[, length]);
Returns string.

Explanation

Extracts a sub-string starting at index and stopping at the end of the string.
If the optional parameter length is specified, the resulting string will be of the same length and starting at index.

[BlueMelon]

Since we are dealing with numbers, I would approach it differently with some simple math.

PHP Code:

function numberToArray(temp.n) {
  temp.n = abs(temp.n);
  temp.digits = {};
  while(temp.n != 0) {
    temp.digits.insert(0, temp.n % 10);
    temp.n = int(temp.n/10);
  }
  return temp.digits;
}

function onCreated() {
  temp.fullnumber = 482;

  temp.digits = numberToArray(temp.fullnumber);
  echo(temp.digits[0]); // 4
  echo(temp.digits[1]); // 8
  echo(temp.digits[3]); // 2
} 


If you want it the other way (reversed), change the .insert(0, ...) with .add(...)

[callimuc]

Originally Posted by BlueMelon

Since we are dealing with numbers, I would approach it differently with some simple math.

PHP Code:

function numberToArray(temp.n) {
  temp.n = abs(temp.n);
  temp.digits = {};
  while(temp.n != 0) {
    temp.digits.insert(0, temp.n % 10);
    temp.n = int(temp.n/10);
  }
  return temp.digits;
}

function onCreated() {
  temp.fullnumber = 482;

  temp.digits = numberToArray(temp.fullnumber);
  echo(temp.digits[0]); // 4
  echo(temp.digits[1]); // 8
  echo(temp.digits[3]); // 2
} 


If you want it the other way (reversed), change the .insert(0, ...) with .add(...)

Probably would have done something like

PHP Code:

function numberToArray(n) {
  temp.n = abs(temp.n); //abs() will always keep your number positive
  temp.toReturn = NULL;
  for (temp.i=0; temp.i<temp.n.length(); temp.i++) {
    temp.toReturn.add(temp.n.substring(temp.i, 1)); //first add 4, then 8, then 2 (in your example);
    /*
    If you would like to have the 2 first, then 8 and then 4 (numbers taken from your example again), then just replace
    temp.toReturn.add(temp.n.substring(temp.i, 1));
    with
    temp.toReturn.insert(0, temp.n.substring(temp.i, 1));
    */
  }
  return temp.toReturn;
} 


[BlueMelon]

From my tests, the method I posted is faster then using substring. But I'm going to assume for OP's case it doesn't really mater which is more efficient.

[i8bit]

Not saying you guys are wrong, but for me, Starfire's script is the only one I can really understand. Till new to scripting..

I'm still confused on what Return is doing in script..?

[callimuc]

Originally Posted by i8bit

Not saying you guys are wrong, but for me, Starfire's script is the only one I can really understand. Till new to scripting..

I'm still confused on what Return is doing in script..?

his one would just work at its best if you know/send the length of your numbers, while the one BlueMelon and me posted could be used as a function used by several scripts (like putting it into a class with custom functions)

Originally Posted by BlueMelon

From my tests, the method I posted is faster then using substring. But I'm going to assume for OP's case it doesn't really mater which is more efficient.

Interesting to know

[Torankusu]

Originally Posted by i8bit

Not saying you guys are wrong, but for me, Starfire's script is the only one I can really understand. Till new to scripting..

I'm still confused on what Return is doing in script..?

Here you go [BlueMelon's method...]

PHP Code:

//This is a function for breaking down a large
//number and storing it as individual elements in an array
function numberToArray(temp.n) {
  //defining temp.n as an absolute value -- no negatives
  temp.n = abs(temp.n);
  //setting blank array
  temp.digits = {};
  
  //make sure there is a number in temp.n
  while(temp.n != 0) {
    //if you don't know what % does,
    //look up "modulo" on google
    //this is inserting each digit into the
    //temp.digits array from earlier
    temp.digits.insert(0, temp.n % 10);
    temp.n = int(temp.n/10);
  }
  //this returns the array we just set up...
  return temp.digits;
}

function onCreated() {
  temp.fullnumber = 482;
  
  //here's an example of what return does...
  //explained below...
  temp.digits = numberToArray(temp.fullnumber);
  echo(temp.digits[0]); // 4
  echo(temp.digits[1]); // 8
  echo(temp.digits[2]); // 2
} 


Return basically works like this:
you can set up a function to perform some actions, like sorting these numbers 54925 into an array. well once you've sorted them and put them into the array, you are telling the function to RETURN the data you've gathered or sorted when that function is called

in the example above temp.digits = The Array the function numberToArray(temp.fullnumber) is returning...

Hope that helps a bit...

[xAndrewx]

this.fullnumber = 482; 
this.digitone = this.fullnumber.charat(0);
this.digittwo = this.fullnumber.charat(1);
this.digitthree = this.fullnumber.charat(2);

For a function

function onCreated() {
  this.number = 2663;
  echo( this.getNumbersAsArray(this.number) ); //returns {2, 6, 6, 3}
  echo( this.getNumber(2, this.number)); //returns 6
}

function getNumbersAsArray(number) {
  temp.ret = {};
  for (temp.i = temp.number.length(); temp.i > 0; temp.i--;)
    temp.ret.insert(0, temp.number.charat(temp.i - 1));
  return temp.ret;
}

function getNumber(index, number) {
  return temp.number.charat(temp.index);
}

[100Zero100]

Originally Posted by callimuc

his one would just work at its best if you know/send the length of your numbers, while the one BlueMelon and me posted could be used as a function used by several scripts (like putting it into a class with custom functions)



Interesting to know

Starfire's method works with substring() too, for multiple numbers, by using temp.num.length() looping.

I disagree with everybody. I would use .charat()

PHP Code:

function numberToArray(num) {
 for (temp.i = 0; i < num.length(); i++) {
  temp.array.add(num.charat(i)); // like num.substring(i, 1) but more efficient
 }
 return(array);
} 


So
temp.num = 426;
temp.test = numberToArray(num);

temp.test is {4, 2, 6}

You could also use charat() to most efficiently get the number at a single position, eg num.charat(1) would be 2.

EDIT: Someone beat me to charat. Darn. But looping backwards and using .insert is the same as using .add and looping forwards, Andrew.

EDIT2: I wonder if concatenation/tokenize would be more efficient than .add()? If so, temp.array = array SPC num.charat[i]; + tokenize it on the return.

[xAndrewx]

Yeah.

Well, the reason I used the backwards loop is because it's always quicker- well in JavaScript anyway

https://blogs.oracle.com/greimer/ent..._way_to_code_a

Not tested on Graal

[BlueMelon]

If we are talking about 'quickness': you are dealing with integers, treat them as integers.