How to upgrade an array of objects?

Dear friends,

I have a number of objects stored in a table.
It seems that the table does not point to objects, but has copies.
The element of the array is only updated with the notation table [index] prop, not with the object.prop notation.

It would be possible to always use the prop table [index] notation for an update of the issues, but I want to understand why the other method does not work. And of course, there should be no copy...

var objArray = [oObject0, oObject1, oObject2];    

function oObjTpl (name, scheme, start, incr, current, decimals, items) { // 'prototype' definition
  this.Name =       name;
  this.Scheme =     scheme;                       // numermic | roman | ROMAN | text
  this.Start =      start;                        // start value
  this.Incr =       incr;                         // increment, may be a formula string
  this.Current =    current;                      // Last inserted value or item
  this.Decimals =   decimals;                     // relevant only for numeric scheme
  this.Items =      items;                        // array of list items, relevant only for text scheme
}

var items0 = ["one","two", "three", "four", "five", "six", "zz", "seven", "eight", "nine", "ten"]; 
var oObject0 = new oObjTpl ('CountingEN', 'text',     1,  1, undefined, undefined, items0);
var oObject1 = new oObjTpl ('oObject1',  'numeric', 17, -1, undefined,         0, undefined);
var oObject2 = new oObjTpl ('oObject2',  'roman',    1,  1, undefined,         0, undefined);

// replace the zz by soemething else
oObject0.Items[6] = "AAAA";       // this does not update objArray
$.writeln (objArray[0].Items);

objArray[0].Items[6] = "BBBB";    // this updates objArray
$.writeln (objArray[0].Items);

oObject0.Items[6] = "CCCC";       // update of objArray effective in next run
$.writeln (objArray[0].Items);

When you run the script 3 times, I get this console output:

one,two,three,four,five,six,zz,seven,eight,nine,ten
one,two,three,four,five,six,BBBB,seven,eight,nine,ten
one,two,three,four,five,six,BBBB,seven,eight,nine,ten
Result: undefined
one,two,three,four,five,six,CCCC,seven,eight,nine,ten
one,two,three,four,five,six,BBBB,seven,eight,nine,ten
one,two,three,four,five,six,BBBB,seven,eight,nine,ten
Result: undefined
one,two,three,four,five,six,CCCC,seven,eight,nine,ten
one,two,three,four,five,six,BBBB,seven,eight,nine,ten
one,two,three,four,five,six,BBBB,seven,eight,nine,ten
Result: undefined

Thank you Apollo, but this has not been around.

But I found that the order of definitions is crucial here. The following works as it should:

function oSeries (name, scheme, start, incr, current, decimals, items) { // 'prototype' definition
  this.Name =       name;
  this.Scheme =     scheme;                       // numermic | roman | ROMAN | text
  this.Start =      start;                        // start value
  this.Incr =       incr;                         // increment, may be a formula string
  this.Current =    current;                      // Last inserted value or item
  this.Decimals =   decimals;                     // relevant only for numeric scheme
  this.Items =      items;                        // array of list items, relevant only for text scheme
//return this;      // ahs no effect
}

var items0 = ["one","two", "three", "four", "five", "six", "zz", "seven", "eight", "nine", "ten"];
var oSeries_0 = new oSeries ('CountingEN', 'text',     1,  1, undefined, undefined, items0);
var oSeries_1 = new oSeries ('oSeries_1',  'numeric', 17, -1, undefined,         0, undefined);
var oSeries_2 = new oSeries ('oSeries_2',  'roman',    1,  1, undefined,         0, undefined);

var aSeries = [oSeries_0, oSeries_1, oSeries_2];    

var a1 = aSeries[2].Scheme;      // roman
$.writeln (a1);

// replace the zz by octogon
oSeries_0.Items[6] = "AAAA";   // this does not update aSeries
$.writeln (aSeries[0].Items);

aSeries[0].Items[6] = "BBBB";  // this updates aSeries
$.writeln (aSeries[0].Items);

oSeries_0.Items[6] = "CCCC";   // update of aSeries effective in next run
$.writeln (aSeries[0].Items);
/*
one,two,three,four,five,six,AAAA,seven,eight,nine,ten
one,two,three,four,five,six,BBBB,seven,eight,nine,ten
one,two,three,four,five,six,CCCC,seven,eight,nine,ten
*/

The order is now: implement the objects and then set up the array of objects.

Tags: Adobe FrameMaker

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