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

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:}

edited Jan 2 at 7:32

iamrajshah

519820

asked Jan 2 at 7:30

DILEEP THOMAS

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

add a comment |

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:}

edited Jan 2 at 7:32

iamrajshah

519820

asked Jan 2 at 7:30

DILEEP THOMAS

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

add a comment |

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:}

edited Jan 2 at 7:32

iamrajshah

519820

asked Jan 2 at 7:30

DILEEP THOMAS

1,1172515

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

edited Jan 2 at 7:32

iamrajshah

519820

asked Jan 2 at 7:30

DILEEP THOMAS

1,1172515

edited Jan 2 at 7:32

iamrajshah

519820

asked Jan 2 at 7:30

DILEEP THOMAS

1,1172515

edited Jan 2 at 7:32

iamrajshah

519820

edited Jan 2 at 7:32

iamrajshah

519820

edited Jan 2 at 7:32

iamrajshah

519820

asked Jan 2 at 7:30

DILEEP THOMAS

1,1172515

asked Jan 2 at 7:30

DILEEP THOMAS

1,1172515

asked Jan 2 at 7:30

DILEEP THOMAS

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

add a comment |

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

add a comment |

2 Answers
2

active

oldest

votes

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);

edited Jan 2 at 7:35

answered Jan 2 at 7:33

Nina Scholz

192k15104177

add a comment |

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

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



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



console.log(output)

answered Jan 2 at 7:34

DILEEP THOMAS

1,1172515

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

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);

edited Jan 2 at 7:35

answered Jan 2 at 7:33

Nina Scholz

192k15104177

add a comment |

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);

edited Jan 2 at 7:35

answered Jan 2 at 7:33

Nina Scholz

192k15104177

add a comment |

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);

edited Jan 2 at 7:35

answered Jan 2 at 7:33

Nina Scholz

192k15104177

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);

edited Jan 2 at 7:35

answered Jan 2 at 7:33

Nina Scholz

192k15104177

edited Jan 2 at 7:35

answered Jan 2 at 7:33

Nina Scholz

192k15104177

answered Jan 2 at 7:33

Nina Scholz

192k15104177

answered Jan 2 at 7:33

Nina Scholz

192k15104177

add a comment |

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

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



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



console.log(output)

answered Jan 2 at 7:34

DILEEP THOMAS

1,1172515

add a comment |

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

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



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



console.log(output)

answered Jan 2 at 7:34

DILEEP THOMAS

1,1172515

add a comment |

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

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



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



console.log(output)

answered Jan 2 at 7:34

DILEEP THOMAS

1,1172515

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)

answered Jan 2 at 7:34

DILEEP THOMAS

1,1172515

answered Jan 2 at 7:34

DILEEP THOMAS

1,1172515

answered Jan 2 at 7:34

DILEEP THOMAS

1,1172515

answered Jan 2 at 7:34

DILEEP THOMAS

1,1172515

add a comment |

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