Jmeter - combine two variables into one

Question

I have extract Json element in previous step (which created an array) and I want to access specific element inside using counter variable (inside foreach). this is the element that holds the array:

SB_names

and inside the 'Foreach' I have created a counter with variable - 'counter'. now, in the name of the http request I'm trying to access each element of the array in each iteration. this works for example:

${__V(${SB_names_1})}

but I want to do something like this (which currently is not working):

${__V(${SB_names_${counter}})} 

thanks.

Answer 1

The correct syntax would be:

${__V(SB_names_${counter})}

For example, if one has variables A1,A2 and N=1:

${A1} - works OK

${A${N}} - does not work (nested variable reference)

${__V(A${N})} - works OK. A${N} becomes A1, and the __V function returns the value of A1

References:

• __V() function manual
• How to Use JMeter Functions - series of articles with extended information on using JMeter functions