I'm working on another developers code that paywalls certain articles. I'm looking at this chunk here
const { paywall = false, iconGroup } = isPaywall({
group: article.frontmatter.group,
subjects: article.frontmatter.subjects
});
and I'm a bit confused as to the paywall = false section. Is it always setting paywall to false? I've never seen items declared like that in any other code I've done or come across. Does it make the default value false?