If we have an object in JS/typescript structured like this:
var obj = {
a: {
b:{
c:1
}
}
}
And a string "b.c" is given, how can we evaluate this using only the variables provided and retrieve the value 1 from the object without relying on techniques like eval as typescript would raise concerns?
Appreciate your insights.
If I understand your question correctly, the keys are known and you can access them using square brackets '[]' like this:
const a = b.c
This is equivalent to:
const a = b['c']
In the second case, you are able to use a variable instead.
When applying this concept to your object, it would appear as follows:
const obj = {
a: {
b: {
c: 1
}
}
}
const outerKey = 'a'
const middleKey = 'b'
const innerKey = 'c'
const value = obj[outerKey][middleKey][innerKey]
console.log(value)I hope this explanation was helpful for you!
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