Filtering array so it would remove all undefined objects
I need to filter an array so it would remove undefined objects from it.
I tried with lodash _.filter but didn't succeed (returned completely empty array)
_.filter(myArray, _.isEmpty)
I'm using Angular 6 so anything with typescript or lodash would be perfect.
arrays angular object lodash
asked Nov 12 at 9:01
raulicious
941212
add a comment |
I need to filter an array so it would remove undefined objects from it.
I tried with lodash _.filter but didn't succeed (returned completely empty array)
_.filter(myArray, _.isEmpty)
I'm using Angular 6 so anything with typescript or lodash would be perfect.
arrays angular object lodash
asked Nov 12 at 9:01
raulicious
941212
add a comment |
I need to filter an array so it would remove undefined objects from it.
I tried with lodash _.filter but didn't succeed (returned completely empty array)
_.filter(myArray, _.isEmpty)
I'm using Angular 6 so anything with typescript or lodash would be perfect.
arrays angular object lodash
asked Nov 12 at 9:01
raulicious
941212
I need to filter an array so it would remove undefined objects from it.
I tried with lodash _.filter but didn't succeed (returned completely empty array)
_.filter(myArray, _.isEmpty)
I'm using Angular 6 so anything with typescript or lodash would be perfect.
arrays angular object lodash
arrays angular object lodash
asked Nov 12 at 9:01
raulicious
941212
asked Nov 12 at 9:01
raulicious
941212
asked Nov 12 at 9:01
raulicious
941212
asked Nov 12 at 9:01
raulicious
941212
asked Nov 12 at 9:01
raulicious
941212
941212
add a comment |
add a comment |
6 Answers
6
active
oldest
votes
An easier way:
_.filter(myArray, Boolean)
This rids the array of nulls, 0's and undefined's.
answered Nov 12 at 9:04
rrd
2,83831222
Thanks a lot, since this is the cleanest way I will accept this answer once I can.
– raulicious
Nov 12 at 9:08
add a comment |
The more simple way
_.filter(myArray, function(o) { return o !== undefined });
edited Nov 12 at 9:04
Ayush Gupta
3,0261643
answered Nov 12 at 9:03
firegloves
3,21511025
add a comment |
Using Javascript also feasible. it supports null,undefined, 0, empty.
newArray = myArray.filter(item=> item);
answered Nov 12 at 9:05
Suresh Kumar Ariya
4,4131215
add a comment |
You don't need a library; the Javascript array type has a filter method:
var filteredArray = myArray.filter(item => item !== undefined);
answered Nov 12 at 9:08
stone
4,5303859
add a comment |
In filter function of lodash if the callback (you passed as argument) return truthy value that element considered to be retained in resultant array otherwise (in case return falsy) it will not retain that element. Your isEmpty return true if it is Empty and thus the result retains those values (null, undefined, 0, ...). So you can either use
_.filter(myArray, _.negate(_.IsEmpty)) or _.filter(myArray, v => !_.IsEmpty(v))
In the way you are trying
Or, you can directly use _.filter(myArray) but in this case it will not remove empty object or empty array as same like _.filter(myArray, Boolean), passing Boolean is not necessery in case of using lodash
in case you don't want to negate and want a simpler solution for removing all the empty element, then you can use
_.reject(myArray, _.isEmpty)
answered Nov 12 at 9:32
Koushik Chatterjee
2,73731024
add a comment |
var newArray = array.filter(arrayItem => arrayItem)
It will Filtering array so it would remove all undefined objects and assign to new variable called newArray
answered Nov 12 at 9:16
ishani shah
364
While this might answer the authors question, it lacks some explaining words and/or links to documentation. Raw code snippets are not very helpful without some phrases around them. You may also find how to write a good answer very helpful. Please edit your answer - From Review
– Nick
Nov 12 at 10:25
add a comment |
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6 Answers
6
active
oldest
votes
6 Answers
6
active
oldest
votes
active
oldest
votes
active
oldest
votes
An easier way:
_.filter(myArray, Boolean)
This rids the array of nulls, 0's and undefined's.
answered Nov 12 at 9:04
rrd
2,83831222
Thanks a lot, since this is the cleanest way I will accept this answer once I can.
– raulicious
Nov 12 at 9:08
add a comment |
An easier way:
_.filter(myArray, Boolean)
This rids the array of nulls, 0's and undefined's.
answered Nov 12 at 9:04
rrd
2,83831222
Thanks a lot, since this is the cleanest way I will accept this answer once I can.
– raulicious
Nov 12 at 9:08
add a comment |
An easier way:
_.filter(myArray, Boolean)
This rids the array of nulls, 0's and undefined's.
answered Nov 12 at 9:04
rrd
2,83831222
An easier way:
_.filter(myArray, Boolean)
This rids the array of nulls, 0's and undefined's.
answered Nov 12 at 9:04
rrd
2,83831222
answered Nov 12 at 9:04
rrd
2,83831222
answered Nov 12 at 9:04
rrd
2,83831222
answered Nov 12 at 9:04
rrd
2,83831222
2,83831222
Thanks a lot, since this is the cleanest way I will accept this answer once I can.
– raulicious
Nov 12 at 9:08
add a comment |
Thanks a lot, since this is the cleanest way I will accept this answer once I can.
– raulicious
Nov 12 at 9:08
Thanks a lot, since this is the cleanest way I will accept this answer once I can.
– raulicious
Nov 12 at 9:08
Thanks a lot, since this is the cleanest way I will accept this answer once I can.
– raulicious
Nov 12 at 9:08
add a comment |
The more simple way
_.filter(myArray, function(o) { return o !== undefined });
edited Nov 12 at 9:04
Ayush Gupta
3,0261643
answered Nov 12 at 9:03
firegloves
3,21511025
add a comment |
The more simple way
_.filter(myArray, function(o) { return o !== undefined });
edited Nov 12 at 9:04
Ayush Gupta
3,0261643
answered Nov 12 at 9:03
firegloves
3,21511025
add a comment |
The more simple way
_.filter(myArray, function(o) { return o !== undefined });
edited Nov 12 at 9:04
Ayush Gupta
3,0261643
answered Nov 12 at 9:03
firegloves
3,21511025
The more simple way
_.filter(myArray, function(o) { return o !== undefined });
edited Nov 12 at 9:04
Ayush Gupta
3,0261643
answered Nov 12 at 9:03
firegloves
3,21511025
edited Nov 12 at 9:04
Ayush Gupta
3,0261643
edited Nov 12 at 9:04
Ayush Gupta
3,0261643
edited Nov 12 at 9:04
Ayush Gupta
3,0261643
3,0261643
answered Nov 12 at 9:03
firegloves
3,21511025
answered Nov 12 at 9:03
firegloves
3,21511025
answered Nov 12 at 9:03
firegloves
3,21511025
3,21511025
add a comment |
add a comment |
Using Javascript also feasible. it supports null,undefined, 0, empty.
newArray = myArray.filter(item=> item);
answered Nov 12 at 9:05
Suresh Kumar Ariya
4,4131215
add a comment |
Using Javascript also feasible. it supports null,undefined, 0, empty.
newArray = myArray.filter(item=> item);
answered Nov 12 at 9:05
Suresh Kumar Ariya
4,4131215
add a comment |
Using Javascript also feasible. it supports null,undefined, 0, empty.
newArray = myArray.filter(item=> item);
answered Nov 12 at 9:05
Suresh Kumar Ariya
4,4131215
Using Javascript also feasible. it supports null,undefined, 0, empty.
newArray = myArray.filter(item=> item);
answered Nov 12 at 9:05
Suresh Kumar Ariya
4,4131215
answered Nov 12 at 9:05
Suresh Kumar Ariya
4,4131215
answered Nov 12 at 9:05
Suresh Kumar Ariya
4,4131215
answered Nov 12 at 9:05
Suresh Kumar Ariya
4,4131215
4,4131215
add a comment |
add a comment |
You don't need a library; the Javascript array type has a filter method:
var filteredArray = myArray.filter(item => item !== undefined);
answered Nov 12 at 9:08
stone
4,5303859
add a comment |
You don't need a library; the Javascript array type has a filter method:
var filteredArray = myArray.filter(item => item !== undefined);
answered Nov 12 at 9:08
stone
4,5303859
add a comment |
You don't need a library; the Javascript array type has a filter method:
var filteredArray = myArray.filter(item => item !== undefined);
answered Nov 12 at 9:08
stone
4,5303859
You don't need a library; the Javascript array type has a filter method:
var filteredArray = myArray.filter(item => item !== undefined);
answered Nov 12 at 9:08
stone
4,5303859
answered Nov 12 at 9:08
stone
4,5303859
answered Nov 12 at 9:08
stone
4,5303859
answered Nov 12 at 9:08
stone
4,5303859
4,5303859
add a comment |
add a comment |
In filter function of lodash if the callback (you passed as argument) return truthy value that element considered to be retained in resultant array otherwise (in case return falsy) it will not retain that element. Your isEmpty return true if it is Empty and thus the result retains those values (null, undefined, 0, ...). So you can either use
_.filter(myArray, _.negate(_.IsEmpty)) or _.filter(myArray, v => !_.IsEmpty(v))
In the way you are trying
Or, you can directly use _.filter(myArray) but in this case it will not remove empty object or empty array as same like _.filter(myArray, Boolean), passing Boolean is not necessery in case of using lodash
in case you don't want to negate and want a simpler solution for removing all the empty element, then you can use
_.reject(myArray, _.isEmpty)
answered Nov 12 at 9:32
Koushik Chatterjee
2,73731024
add a comment |
In filter function of lodash if the callback (you passed as argument) return truthy value that element considered to be retained in resultant array otherwise (in case return falsy) it will not retain that element. Your isEmpty return true if it is Empty and thus the result retains those values (null, undefined, 0, ...). So you can either use
_.filter(myArray, _.negate(_.IsEmpty)) or _.filter(myArray, v => !_.IsEmpty(v))
In the way you are trying
Or, you can directly use _.filter(myArray) but in this case it will not remove empty object or empty array as same like _.filter(myArray, Boolean), passing Boolean is not necessery in case of using lodash
in case you don't want to negate and want a simpler solution for removing all the empty element, then you can use
_.reject(myArray, _.isEmpty)
answered Nov 12 at 9:32
Koushik Chatterjee
2,73731024
add a comment |
In filter function of lodash if the callback (you passed as argument) return truthy value that element considered to be retained in resultant array otherwise (in case return falsy) it will not retain that element. Your isEmpty return true if it is Empty and thus the result retains those values (null, undefined, 0, ...). So you can either use
_.filter(myArray, _.negate(_.IsEmpty)) or _.filter(myArray, v => !_.IsEmpty(v))
In the way you are trying
Or, you can directly use _.filter(myArray) but in this case it will not remove empty object or empty array as same like _.filter(myArray, Boolean), passing Boolean is not necessery in case of using lodash
in case you don't want to negate and want a simpler solution for removing all the empty element, then you can use
_.reject(myArray, _.isEmpty)
answered Nov 12 at 9:32
Koushik Chatterjee
2,73731024
In filter function of lodash if the callback (you passed as argument) return truthy value that element considered to be retained in resultant array otherwise (in case return falsy) it will not retain that element. Your isEmpty return true if it is Empty and thus the result retains those values (null, undefined, 0, ...). So you can either use
_.filter(myArray, _.negate(_.IsEmpty)) or _.filter(myArray, v => !_.IsEmpty(v))
In the way you are trying
Or, you can directly use _.filter(myArray) but in this case it will not remove empty object or empty array as same like _.filter(myArray, Boolean), passing Boolean is not necessery in case of using lodash
in case you don't want to negate and want a simpler solution for removing all the empty element, then you can use
_.reject(myArray, _.isEmpty)
answered Nov 12 at 9:32
Koushik Chatterjee
2,73731024
edited Nov 12 at 9:39
answered Nov 12 at 9:32
Koushik Chatterjee
2,73731024
answered Nov 12 at 9:32
Koushik Chatterjee
2,73731024
answered Nov 12 at 9:32
Koushik Chatterjee
2,73731024
2,73731024
add a comment |
add a comment |
var newArray = array.filter(arrayItem => arrayItem)
It will Filtering array so it would remove all undefined objects and assign to new variable called newArray
answered Nov 12 at 9:16
ishani shah
364
While this might answer the authors question, it lacks some explaining words and/or links to documentation. Raw code snippets are not very helpful without some phrases around them. You may also find how to write a good answer very helpful. Please edit your answer - From Review
– Nick
Nov 12 at 10:25
add a comment |
var newArray = array.filter(arrayItem => arrayItem)
It will Filtering array so it would remove all undefined objects and assign to new variable called newArray
answered Nov 12 at 9:16
ishani shah
364
While this might answer the authors question, it lacks some explaining words and/or links to documentation. Raw code snippets are not very helpful without some phrases around them. You may also find how to write a good answer very helpful. Please edit your answer - From Review
– Nick
Nov 12 at 10:25
add a comment |
var newArray = array.filter(arrayItem => arrayItem)
It will Filtering array so it would remove all undefined objects and assign to new variable called newArray
answered Nov 12 at 9:16
ishani shah
364
var newArray = array.filter(arrayItem => arrayItem)
It will Filtering array so it would remove all undefined objects and assign to new variable called newArray
answered Nov 12 at 9:16
ishani shah
364
edited Nov 12 at 11:04
answered Nov 12 at 9:16
ishani shah
364
answered Nov 12 at 9:16
ishani shah
364
answered Nov 12 at 9:16
ishani shah
364
364
While this might answer the authors question, it lacks some explaining words and/or links to documentation. Raw code snippets are not very helpful without some phrases around them. You may also find how to write a good answer very helpful. Please edit your answer - From Review
– Nick
Nov 12 at 10:25
add a comment |
While this might answer the authors question, it lacks some explaining words and/or links to documentation. Raw code snippets are not very helpful without some phrases around them. You may also find how to write a good answer very helpful. Please edit your answer - From Review
– Nick
Nov 12 at 10:25
While this might answer the authors question, it lacks some explaining words and/or links to documentation. Raw code snippets are not very helpful without some phrases around them. You may also find how to write a good answer very helpful. Please edit your answer - From Review
– Nick
Nov 12 at 10:25
While this might answer the authors question, it lacks some explaining words and/or links to documentation. Raw code snippets are not very helpful without some phrases around them. You may also find how to write a good answer very helpful. Please edit your answer - From Review
– Nick
Nov 12 at 10:25
add a comment |
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