when filter data by using fieldnamefilter variable it give me 'N/A' but It work using static word on filter? RSS

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  ahmedbarbary

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  when filter data by using fieldnamefilter variable it give me 'N/A' but It work using static word...

  Jun 08, 2020 10:12 PM|ahmedbarbary|LINK

  I work on angular 7 app I face Issue when filter data using data[0][this.fieldnamefilter] it give me N/A

  I filter data by using variable fieldnamefilter

  below code is give n/a on this.fieldnamefilter function filter :

  contentBody:any[];
   fieldnamefilter:any;
   data is have datatype any[];
  
  console.log("data values : " + this.fieldnamefilter ) 
  //result is data values : onlineURL on console log
  
  // when use data[0][this.fieldnamefilter] it give me N/A
  
  this.contentBody = data.filter(item =>item != data[0][this.fieldnamefilter]);
  but If I use it as data[0].onlineURL  it working ;
  
   //working when use field name direct data[0].onlineURL
  
  this.contentBody = data.filter(item =>item != data[0].onlineURL);

  so How to solve this issue ;

  Updated post I try :

  console.log(this.fieldnamefilter it give me onlineURL

  when use field name direct it work but on my case i stored filter name on variable

  so how to use variable name on data[0].variable have filter

  if you store a field in that variable, you can use it like this:

  data[0][this.fieldnamefilter] 
  
  
  const data = [{onlineurl: 'asdasd'}, {onlineurl: 'xxxx'}];
  const fieldnamefilter = 'onlineurl';
  const filteredData = data.filter(entry => entry[fieldnamefilter] === data[0][fieldnamefilter