XSLT create new array iterating over an existing array

Question

I am trying to collect strings of my interest by iterating over an array of objects and create a new array. I would use this new array later in my transformation to generate the output.

Below is my code:

    <xsl:stylesheet
        xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
        xmlns:xs="http://www.w3.org/2001/XMLSchema"
        xmlns:fn="http://www.w3.org/2005/xpath-functions"
        xmlns:map="http://www.w3.org/2005/xpath-functions/map"
        xmlns:array="http://www.w3.org/2005/xpath-functions/array"
        version="3.0">
        <xsl:output method="text"/>
        <xsl:strip-space elements="*" />
        <xsl:template name="test" match="/">
            <xsl:param name="data" select="data"></xsl:param>
            <xsl:variable name="myData" select="$data" />
    
          <xsl:variable name="inputArray" select="array{'John', 'Peter'}"/>
           <xsl:variable name="myArray" select="array{}"/>
          
            <xsl:for-each select="1 to array:size($inputArray)">
            <xsl:variable name="personName" select="array:get($inputArray, .)" />
            <xsl:value-of select="$personName" />
             <xsl:variable name="myArray" select="array:append($myArray, personName)" />
            </xsl:for-each>
    <!--       <xsl:variable name="myArray" select="array:append($myArray, 'John')" />
          <xsl:variable name="myArray" select="array:append($myArray, 'Peter')" /> -->
          
          <xsl:for-each select="1 to array:size($myArray)">
          <xsl:value-of select="test" />
            <xsl:text>Person name is : </xsl:text>
            <xsl:value-of select="array:get($myArray,.)" />
        </xsl:for-each>
        </xsl:template>
    </xsl:stylesheet>

This doesn't append the values into myArray and doesn't even enter the for-each block to output the "test" string.

The source for input array is the array of objects as below:

  map {"persons": [map {
                    "name": "John",
                    "age": 33,
                    "residence":"Permanent" 
                    }, map {
                    
                    "name": "Peter",
                    "age": 36,
                    "residence":"Temporary"
                        }
            ]
    }

I would be reading this array using map:get($persons) iterate and collect the names into myArray.

Answer 1

Given this input variable:

<xsl:variable name="input-map" select="
    map {'persons': 
        [ 
        map {
            'name': 'John',
            'age': 33,
            'residence':'Permanent' 
            }, 
        map {
            'name': 'Peter',
            'age': 36,
            'residence':'Temporary'
            }
        ]
    }"/>

you can create an array of names using:

<xsl:variable name="myArray" select="array{$input-map?persons?*?name}"/>