One Liner To Delete Multiple Object Properties
I have a few object properties I need to delete at certain point but I still need others so I can't just write delete vm.model; to remove all of it. At the moment there are 5 prope
Solution 1:
There is no native function that does this yet; but you can always just loop and delete
:
const obj = {
prop1: 'foo',
prop2: 'bar',
prop3: 'baz'
}
;[ 'prop1', 'prop2' ].forEach(prop => delete obj[prop])
console.log(obj)
... found the _.omit lodash function but I don't want to end up downloading whole library just for a single function.
Just abstract the same concept into a function and reuse it:
const obj = {
prop1: 'foo',
prop2: 'bar',
prop3: 'baz'
}
const filterKeys = (obj, keys = []) => {
// NOTE: Clone object to avoid mutating original!
obj = JSON.parse(JSON.stringify(obj))
keys.forEach(key => delete obj[key])
return obj
}
const result1 = filterKeys(obj, ['prop1', 'prop2'])
const result2 = filterKeys(obj, ['prop2'])
console.log(result1)
console.log(result2)
Solution 2:
There is no much you can do to simplify it, you can use an array
["a","b","c"].forEach(k => delete vm.model[k])
Solution 3:
Check this out:
> const {a,b, ...newArray} = {a:1,b:2,c:3,d:4}
> newArray
{ c: 3, d: 4 }
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