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Hide repeated column data in angular material

1

enter image description hereI am trying to hide repeated column data in Angular(6) material meaning:

 data = [
 name: 'Bo', lastname:'Belfort', address:'street1', description:'description1';
 name: 'Bo', lastname:'Belfort', address:'street1', description:'description2',
 name: 'Tom', lastname:'Goshin', address:'street2', description:'description3',
 name: 'Esther', lastname:'Jermain', address:'street3', description:'description4',
 name: 'Tom', lastname:'Goshin', address:'street2', description:'description5',
]

I tried this but failed:

removeDuplicates(myArr, prop) 
 myArr = this.dataSource.filteredData;
 return myArr.filter((obj, pos, arr) => 
 arr.map(mapObj => mapObj[prop]).indexOf(obj[prop]) === pos;
 console.log(myArr)
 );

I would like to show the name and lastname only once for each person (leaving that column data blank) but display the address and description repeatedly.
Thanks in advance for any help!

javascript angular angular-directive

share|improve this question

edited Mar 8 at 19:58

Rob

asked Mar 8 at 17:31

RobRob

93

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  it needs to show here what you tried..?
  
  – Irf
  Mar 8 at 17:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It tried this but failed: removeDuplicates(myArr, prop) myArr = this.dataSource.filteredData; return myArr.filter((obj, pos, arr) => arr.map(mapObj => mapObj[prop]).indexOf(obj[prop]) === pos; console.log(myArr) );
  
  – Rob
  Mar 8 at 18:29
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Include that in your question
  
  – Grant Foster
  Mar 8 at 18:51
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @gfos,@Irf i just updated the question
  
  – Rob
  Mar 8 at 18:59
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I don't understand your question. You want to remove duplicate items from the array?
  
  – Chris Barr
  Mar 8 at 19:08
  

  
  
  
  

 | 
show 8 more comments

1

enter image description hereI am trying to hide repeated column data in Angular(6) material meaning:

 data = [
 name: 'Bo', lastname:'Belfort', address:'street1', description:'description1';
 name: 'Bo', lastname:'Belfort', address:'street1', description:'description2',
 name: 'Tom', lastname:'Goshin', address:'street2', description:'description3',
 name: 'Esther', lastname:'Jermain', address:'street3', description:'description4',
 name: 'Tom', lastname:'Goshin', address:'street2', description:'description5',
]

I tried this but failed:

removeDuplicates(myArr, prop) 
 myArr = this.dataSource.filteredData;
 return myArr.filter((obj, pos, arr) => 
 arr.map(mapObj => mapObj[prop]).indexOf(obj[prop]) === pos;
 console.log(myArr)
 );

I would like to show the name and lastname only once for each person (leaving that column data blank) but display the address and description repeatedly.
Thanks in advance for any help!

javascript angular angular-directive

share|improve this question

edited Mar 8 at 19:58

Rob

asked Mar 8 at 17:31

RobRob

93

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  it needs to show here what you tried..?
  
  – Irf
  Mar 8 at 17:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It tried this but failed: removeDuplicates(myArr, prop) myArr = this.dataSource.filteredData; return myArr.filter((obj, pos, arr) => arr.map(mapObj => mapObj[prop]).indexOf(obj[prop]) === pos; console.log(myArr) );
  
  – Rob
  Mar 8 at 18:29
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Include that in your question
  
  – Grant Foster
  Mar 8 at 18:51
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @gfos,@Irf i just updated the question
  
  – Rob
  Mar 8 at 18:59
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I don't understand your question. You want to remove duplicate items from the array?
  
  – Chris Barr
  Mar 8 at 19:08
  

  
  
  
  

 | 
show 8 more comments

enter image description hereI am trying to hide repeated column data in Angular(6) material meaning:

 data = [
 name: 'Bo', lastname:'Belfort', address:'street1', description:'description1';
 name: 'Bo', lastname:'Belfort', address:'street1', description:'description2',
 name: 'Tom', lastname:'Goshin', address:'street2', description:'description3',
 name: 'Esther', lastname:'Jermain', address:'street3', description:'description4',
 name: 'Tom', lastname:'Goshin', address:'street2', description:'description5',
]

I tried this but failed:

removeDuplicates(myArr, prop) 
 myArr = this.dataSource.filteredData;
 return myArr.filter((obj, pos, arr) => 
 arr.map(mapObj => mapObj[prop]).indexOf(obj[prop]) === pos;
 console.log(myArr)
 );

I would like to show the name and lastname only once for each person (leaving that column data blank) but display the address and description repeatedly.
Thanks in advance for any help!

javascript angular angular-directive

share|improve this question

edited Mar 8 at 19:58

Rob

asked Mar 8 at 17:31

RobRob

93

 data = [
 name: 'Bo', lastname:'Belfort', address:'street1', description:'description1';
 name: 'Bo', lastname:'Belfort', address:'street1', description:'description2',
 name: 'Tom', lastname:'Goshin', address:'street2', description:'description3',
 name: 'Esther', lastname:'Jermain', address:'street3', description:'description4',
 name: 'Tom', lastname:'Goshin', address:'street2', description:'description5',
]

removeDuplicates(myArr, prop) 
 myArr = this.dataSource.filteredData;
 return myArr.filter((obj, pos, arr) => 
 arr.map(mapObj => mapObj[prop]).indexOf(obj[prop]) === pos;
 console.log(myArr)
 );

javascript angular angular-directive

javascript angular angular-directive

share|improve this question

edited Mar 8 at 19:58

Rob

asked Mar 8 at 17:31

RobRob

93

share|improve this question

edited Mar 8 at 19:58

Rob

asked Mar 8 at 17:31

RobRob

93

asked Mar 8 at 17:31

RobRob

93

asked Mar 8 at 17:31

RobRob

93