How to remove item if exist before and add current as new ?RSS

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  ahmedbarbary

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  How to remove item if exist before and add current as new ?

  May 17, 2020 07:41 AM|ahmedbarbary|LINK

  
  problem
  
  How to remove item if exist before and add current as new ?

  I need when add statusdate exist before on collectfulldata then remove exist and and add new one
  
  and if not exist add it .

  meaning i dont need two statusdata with same name exist two time .
  
  and if statusdata not exist add it .
  
  

  initcollectdropdowslist=[]; 
  collectfulldata:string; 
  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 Text5='Lifecycle',Text6='Package',Text7='Parametric'

  Expected result
  
  if add Text8='car' to collectfulldata add it because not exist
  if add Text6='OBS' add it but remove exist as Text6='Package'

• • Reply
  bruce (sqlwo...

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  14257 Posts

  Re: How to remove item if exist before and add current as new ?

  May 17, 2020 04:16 PM|bruce (sqlwork.com)|LINK

  This logic would make more sense as a mapped object (dictionary) rather than array, but the fix is simple. Just check if it exists

  const index = this.initcollectdropdowslist.findIndex(e => e.startsWith(statusdata+"="));

  If the index is not -1you can replace or remove with a slice()
     
  
  

  bruce (sqlwork.com)