how can get every value in app when edited mashup js file

[ting_shen]

In app I edited a table as follows

I want to print out all the values in the table in a loop, but the following code failed.

Please give me your advice.

[ting_shen]

add latest code

Could you tell me where the error code is?

The following alert values are null and No matches.

[Sue_Macaluso]

@ting_shen  Are you using QlikView or Sense?  I would like to move it to the correct product forum.

[ting_shen]

Thank you for your attention.

My question for Qlik Senes.

Recent developments on the following issues,

Please keep your eyes open and give me some advice. Thank you.