How to replace comma separate by and when push data ?

Question

I work on angular 7 i need to replace comma separated , when push data 

let textdata=$event.target.options[$event.target.options.selectedIndex].text;
   let statusdata:any = this.FilterBinddata.filter(s=>s.reportSource==textdata)[0].reportSource2;

 this.collectfulldata= statusdata + "=" + "'" + textdata + "'";

   this.initcollectdropdowslist.push(this.collectfulldata);
   console.log("full data is " + this.initcollectdropdowslist)

current result

full data is Text6='Lifecycle',Text6='Package',Text6='Parametric'

Expected result 

 

full data is Text6='Lifecycle'and Text6='Package' and Text6='Parametric'