javascript - Counter in smarty -

i assign values variable depending on counter's value inside each loop. if counter=1, assign value 'a', if counter not 1, assign value 'b'.

this how far have gotten code breaking once add conditions , counter change...

[{foreach from=$orderarticles item="currorderarticle"}]     [{if $counter == 1}]         products_info.push(["transaction_id='a'"]);         [{assign var="counter" value=2}]     [{else}]         products_info.push(["transaction_id='b'"]);     [{/if}] [{/foreach}] 

smarty has iteration counter foreach loops

[{foreach $orderarticles $currorderarticle}]   [{if $currorderarticle@iteration == 1}]    ... ...   [{else}]   ... else ...   [{/if}] [{/foreach}] 

read more in smarty documentation foreach