I have an object that looks like this:
var obj = {
"objectiveDetailId": 285,
"objectiveId": 29,
"number": 1,
"text": "x",
"subTopics": [{
"subTopicId": 1,
"number": 1
}, {
"subTopicId": 2,
"number": 32
}, {
"subTopicId": 3,
"number": 22
}]
}
var stToDelete = 2;
I have lodash
installed in my application for other things. Is there an efficient way to use lodash
to delete the entry: {"subTopicId":2, "number":32}
from the obj
object?
Or is there a javascript way to do this?
As lyyons pointed out in the comments, more idiomatic and lodashy way to do this would be to use _.remove
, like this
_.remove(obj.subTopics, {
subTopicId: stToDelete
});
Apart from that, you can pass a predicate function whose result will be used to determine if the current element has to be removed or not.
_.remove(obj.subTopics, function(currentObject) {
return currentObject.subTopicId === stToDelete;
});
Alternatively, you can create a new array by filtering the old one with _.filter
and assign it to the same object, like this
obj.subTopics = _.filter(obj.subTopics, function(currentObject) {
return currentObject.subTopicId !== stToDelete;
});
Or
obj.subTopics = _.filter(obj.subTopics, {subTopicId: stToKeep});