We always use an object to read and write data in javascript
.
Suppose this object
const obj = {
one:{
two:{
three:{
four:{
data:"This is the data"
}
}
}
}
}
Any attribute at any level of nesting can be null
or undefined
.
For example
obj = null;
obj.one = null;
obj.one.two = undefined;
So, if we are concerned with property data
from the object obj
.
We will use it like this.
const data = obj?obj.one?obj.one.two?obj.one.two:"":"":""; // so on...
What I tried is
let data = "";
try{
data = obj.one.two.three.four.data;
}catch(e){}
This way at any stage if we try to encounter an operation like, one is undefined
and we are trying to read the property of one
. Then, in this case, it'll throw an error and data
will be an empty string.
It works fine
As I don't have much experience, so I would like to know from the community that, is a good way of reading the data?
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