I read this post, using delete keyword, we can delete JavaScript variable. But when I tried the same operations with constant but it is returning false when I try to delete constant. Is there any way to delete constants from memory?
I tried this answer but its also not working.
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Answer
You can’t directly do it, looking at the specs show us that the value can be set, but not over-written (such is the standard definition of a constant), however there are a couple of somewhat hacky ways of unsetting constant values.
Using scope
const is scoped. By defining the constant in a block it will only exist for this block.
Setting an object and unsetting keys
By defining const obj = { /* keys */ } we define a value obj that is constant, but we can still treat the keys like any other variable, as is demonstrated by the examples in the MDN article. One could unset a key by setting it to null.
If it’s memory management that is the concern then both these techniques will help.