Set and display environment variable in powershell

Question

I want to set NODE_OPTIONS as environment variable in powershell (windows 10)

set NODE_OPTIONS=--max_old_space_size=4096

But I can't see the variable set, i.e.,

• $env:NODE_OPTIONS -> give nothing

What's the right way to set and display environment variable in power shell?

Note: I am aware that Set and display environment variable in power shell provide the answer of seeing environment variable - but it does not mention how to set it.