'npm build run package (react) terminal command

How to update "build" folder of a project after changes or updates?

I tried npm update but can't update the build folder while I made changes of my project

reactjs npm npm-build

Solution 1:^[1]

I usually use npm run build command for building it again. It overrides the previous one.

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	vhbazan