filter the properties of an object based on an array. And get the filtered object












0















how can i filter the properties of an object based on an array. I have sample snippet below.






var obj = {a: , b:, c: , d:}

var arr = ["a", "b"]





Following is my expected output, how can i achieve this




var outupt = {a: , b:}







javascript filter







share|improve this question

























  • You will have to map arr with obj and then you can get required output

    – iamrajshah
    Jan 2 at 7:33











  • got the solution

    – DILEEP THOMAS
    Jan 2 at 7:33
















0















how can i filter the properties of an object based on an array. I have sample snippet below.






var obj = {a: , b:, c: , d:}

var arr = ["a", "b"]





Following is my expected output, how can i achieve this




var outupt = {a: , b:}







javascript filter







share|improve this question

























  • You will have to map arr with obj and then you can get required output

    – iamrajshah
    Jan 2 at 7:33











  • got the solution

    – DILEEP THOMAS
    Jan 2 at 7:33














0












0








0








how can i filter the properties of an object based on an array. I have sample snippet below.






var obj = {a: , b:, c: , d:}

var arr = ["a", "b"]





Following is my expected output, how can i achieve this




var outupt = {a: , b:}







javascript filter







share|improve this question
















how can i filter the properties of an object based on an array. I have sample snippet below.






var obj = {a: , b:, c: , d:}

var arr = ["a", "b"]





Following is my expected output, how can i achieve this




var outupt = {a: , b:}







var obj = {a: , b:, c: , d:}

var arr = ["a", "b"]





var obj = {a: , b:, c: , d:}

var arr = ["a", "b"]





javascript filter




javascript filter






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 2 at 7:32









iamrajshah

519820




519820










asked Jan 2 at 7:30









DILEEP THOMASDILEEP THOMAS

1,1172515




1,1172515













  • You will have to map arr with obj and then you can get required output

    – iamrajshah
    Jan 2 at 7:33











  • got the solution

    – DILEEP THOMAS
    Jan 2 at 7:33



















  • You will have to map arr with obj and then you can get required output

    – iamrajshah
    Jan 2 at 7:33











  • got the solution

    – DILEEP THOMAS
    Jan 2 at 7:33

















You will have to map arr with obj and then you can get required output

– iamrajshah
Jan 2 at 7:33





You will have to map arr with obj and then you can get required output

– iamrajshah
Jan 2 at 7:33













got the solution

– DILEEP THOMAS
Jan 2 at 7:33





got the solution

– DILEEP THOMAS
Jan 2 at 7:33












2 Answers
2






active

oldest

votes


















2














You could map new objects and create a single object.






var object = { a: , b: , c: , d:  },

    keys = ["a", "b"],

    result = Object.assign(...keys.map(k => ({ [k]: object[k] })));



console.log(result);








share|improve this answer

































    1

















    var obj = {a: , b:, c: , d:}
    
var arr = ["a", "b"]
    

    
var output = arr.reduce((result, key) => ({ ...result, [key]: obj[key] }), {});
    

    
console.log(output)








    share|improve this answer























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      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      2














      You could map new objects and create a single object.






      var object = { a: , b: , c: , d:  },
      
    keys = ["a", "b"],
      
    result = Object.assign(...keys.map(k => ({ [k]: object[k] })));
      

      
console.log(result);








      share|improve this answer






























        2














        You could map new objects and create a single object.






        var object = { a: , b: , c: , d:  },
        
    keys = ["a", "b"],
        
    result = Object.assign(...keys.map(k => ({ [k]: object[k] })));
        

        
console.log(result);








        share|improve this answer




























          2












          2








          2







          You could map new objects and create a single object.






          var object = { a: , b: , c: , d:  },
          
    keys = ["a", "b"],
          
    result = Object.assign(...keys.map(k => ({ [k]: object[k] })));
          

          
console.log(result);








          share|improve this answer















          You could map new objects and create a single object.






          var object = { a: , b: , c: , d:  },
          
    keys = ["a", "b"],
          
    result = Object.assign(...keys.map(k => ({ [k]: object[k] })));
          

          
console.log(result);








          var object = { a: , b: , c: , d:  },
          
    keys = ["a", "b"],
          
    result = Object.assign(...keys.map(k => ({ [k]: object[k] })));
          

          
console.log(result);





          var object = { a: , b: , c: , d:  },
          
    keys = ["a", "b"],
          
    result = Object.assign(...keys.map(k => ({ [k]: object[k] })));
          

          
console.log(result);






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Jan 2 at 7:35

























          answered Jan 2 at 7:33









          Nina ScholzNina Scholz

          192k15104177




          192k15104177

























              1

















              var obj = {a: , b:, c: , d:}
              
var arr = ["a", "b"]
              

              
var output = arr.reduce((result, key) => ({ ...result, [key]: obj[key] }), {});
              

              
console.log(output)








              share|improve this answer




























                1

















                var obj = {a: , b:, c: , d:}
                
var arr = ["a", "b"]
                

                
var output = arr.reduce((result, key) => ({ ...result, [key]: obj[key] }), {});
                

                
console.log(output)








                share|improve this answer


























                  1












                  1








                  1










                  var obj = {a: , b:, c: , d:}
                  
var arr = ["a", "b"]
                  

                  
var output = arr.reduce((result, key) => ({ ...result, [key]: obj[key] }), {});
                  

                  
console.log(output)








                  share|improve this answer
















                  var obj = {a: , b:, c: , d:}
                  
var arr = ["a", "b"]
                  

                  
var output = arr.reduce((result, key) => ({ ...result, [key]: obj[key] }), {});
                  

                  
console.log(output)








                  var obj = {a: , b:, c: , d:}
                  
var arr = ["a", "b"]
                  

                  
var output = arr.reduce((result, key) => ({ ...result, [key]: obj[key] }), {});
                  

                  
console.log(output)





                  var obj = {a: , b:, c: , d:}
                  
var arr = ["a", "b"]
                  

                  
var output = arr.reduce((result, key) => ({ ...result, [key]: obj[key] }), {});
                  

                  
console.log(output)






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jan 2 at 7:34









                  DILEEP THOMASDILEEP THOMAS

                  1,1172515




                  1,1172515






























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