Say I have object as follows:
let newObject = {
foo: 'foo-value',
bar: 'bar-value',
baz: 'baz-value'
};
I have also a list:
let list = ['foo', 'baz']
I want to overwrite 'foo-value' and 'baz-value' (value of keys that appear in the list) with some 'default-value'. So I have:
{
foo: 'default-value',
bar: 'bar-value',
baz: 'default-value'
};
If I have a different object, let's say
let differentObject = {
x: 'x-value',
y: 'y-value'
}
I don't want to add any default value so spread operator didn't work for me.
You can achieve that like this
let newObject = {
foo: 'foo-value',
bar: 'bar-value',
baz: 'baz-value'
};
let list = ['foo', 'baz'];
list.forEach(item => {
if(newObject[item])
newObject[item] = 'Default value';
})
console.log(newObject);