How to handle arrays in Selenium IDE 3.7.4

问题

In Selenium IDE 3.7.4 I'd like to make a loop to do click on several links that have similar Xpath. For this I think in create an array but trying with a simple array with the settings (Command,Target, Value) as below is not working.

+----------------+---------------------------------------+---------+
| Command        | Target                                | Value   |
+----------------+---------------------------------------+---------+
| execute script | var a = "A|B|C".split("|"); return a; | arr     |
+----------------+---------------------------------------+---------+
| execute script | return 0                              | counter |
+----------------+---------------------------------------+---------+
| while          | ${counter} < 3                        |         |
+----------------+---------------------------------------+---------+
| echo           | "Element = " + ${arr[${counter}]}     |         |
+----------------+---------------------------------------+---------+
| execute script | return ${counter} + 1                 | counter |
+----------------+---------------------------------------+---------+
| end            |                                       |         |
+----------------+---------------------------------------+---------+

The expected output for this test would be:

Element = A
Element = B
Element = C

And I'm getting this output:

"Element = " + ${arr[${counter}]}
"Element = " + ${arr[${counter}]}
"Element = " + ${arr[${counter}]}

How can I handle arrays and print their elements in Selenium IDE? I only found some question here regarding this but with a older version of Selenium IDE that had other commands like getEval that doesn't exist in latest version.

Thanks in advance for any help.

UPDATE

Thanks to Jim's answer I was able to complete a working array example on Selenium IDE. The code is like below

{
  "version": "2.0",
  "name": "Array",
  "url": "https://www.seleniumhq.org",
  "tests": [{
    "name": "Untitled",
    "commands": [{
      "command": "open",
      "target": "https://www.seleniumhq.org",
      "targets": [],
      "value": ""
    }, {
      "command": "executeScript",
      "target": "var a = \"projects|download|documentation\".split(\"|\"); return a;",
      "targets": [],
      "value": "arr"
    }, {
      "command": "executeScript",
      "target": "return 0",
      "targets": [],
      "value": "counter"
    }, {
      "command": "pause",
      "target": "4000",
      "targets": [],
      "value": ""
    }, {
      "command": "while",
      "target": "${counter} < 3",
      "targets": [],
      "value": "counter"
    }, {
      "command": "executeScript",
      "target": "return \"css=#menu_\" + ${arr}[${counter}] + \" > a\";",
      "targets": [],
      "value": "output"
    }, {
      "command": "click",
      "target": "${output}",
      "targets": [],
      "value": ""
    }, {
      "command": "pause",
      "target": "3000",
      "targets": [],
      "value": ""
    }, {
      "command": "executeScript",
      "target": "return ${counter} + 1;",
      "targets": [],
      "value": "counter"
    }, {
      "command": "end",
      "target": "",
      "targets": [],
      "value": ""
    }]
  }],
  "suites": [{
    "name": "Default Suite",
    "persistSession": false,
    "parallel": false,
    "timeout": 300,
    "tests": ["78b402ba-8dfa-47d6-bee8-7a0d928db6f1"]
  }],
  "urls": ["https://www.seleniumhq.org/"],
  "plugins": []
}

来源：https://stackoverflow.com/questions/56266336/how-to-handle-arrays-in-selenium-ide-3-7-4

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