I have some JSON that looks like this
var js = '{
"person" : {
"firstname" : "Steve",
"lastname" : "Smith",
"other": [
{
"age" : "32",
"deceased" : false
},
{
"age" : "14",
"deceased" : false
},
{
"age" : "421",
"deceased" : false
}
]
}
}'
I know how I delete all of "other" by doing this
var j = JSON.parse(js)
delete j[person.other]
but what I really want is to delete the "other" node with a condition that is age = 14.
The result JSON I am looking for is
{
"person" : {
"firstname" : "Steve",
"lastname" : "Smith",
"other": [
{
"age" : "32",
"deceased" : false
},
{
"age" : "421",
"deceased" : false
}
]
}
}
I have looked at the delete operator here and it does not provide a conditional.
Sorry if this is too simple a question. I am learning.
Thanks
You can use a filter on the array doing something like
j[person.other].filter(x => x.age != 14)
Doc on how filter works more in depth here :
https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/filter
The best approach to this would be not to alter the json, but create another one instead:
const filtered = { ...json, other: json.other.filter(item => item.age !== "14") }
If you really need to alter the json, you can do the following:
let index = json.other.findIndex(item => item.age === "14")
while (index !== -1) {
json.other.splice(index, 1)
index = json.other.findIndex(item => item.age === "14")
}