Array with running total instead of individual values

[Dan Byer]

Hi all,

I'm trying to create a script to spit out a running total of the number of words per line of text. I can get it to spit out the count for each individual line, but what I readlly want is it to be a total for all words up to that point. Here's where I'm at:

for (var i = 0; i < myText.lines.length; i++) {
 myCounts[i] = [app.selection[0].lines[i].words.length]
}

The array myCounts contains the number of words in each line, but is there some way I can rewrite this so each item in the array is a sum of all previous items? I'm thinking something like counting "lines 0 through i" instead of just "line i". Or do I need to create a second array, maybe?

Thanks for any advice!

[brianp311 · Accepted solution]

Where's the rest of the code? myText is undefined at this stage, as is myCounts, and then you're referencing the selection instead of myText lines. Quite confused. Here's what I think you're going for.

//
var myText = app.selection[0];
var numLines = myText.lines.length;
var myCounts = new Array(numLines);
for (var i = 0; i < numLines; i++) {
   if (i == 0) { 
      myCounts[i] = myText.lines[i].words.length;
   } else { 
       myCounts[i] = myText.lines[i].words.length + myCounts[i-1];
   }
}

[Dan Byer]

There's a bunch more to what I'm trying to do with this script so I only included the part I got hung up on.

I got it to work with a second array, but really it was the if (i == 0) bit that was tricking me! Now it seems so obvious 😕

Thank you!

[BarlaeDC]

Hi,

(allowing for the comments already made, which may mean my answer is not as good as it could be).

You want myCounts to be an ever increasing total of the number of words per line:

for example :

Line one has five words

Line two has five words

Line three has five words

You myCounts array would have the values : [ 5, 10, 15];

if that is correct then you can do something like this:

var myCounts = [];
for ( var i = 0; i < app.selection[0].lines.length; i++){
    var j = (i > 0) ? i -1 : i;
    if ( myCounts.length > 0){
        myCounts.push ( myCounts[j] + app.selection[0].lines[i].words.length);
    } else {
        myCounts.push ( app.selection[0].lines[i].words.length)
    }
}