x += 5 is x = x + 5; the same pattern covers -= *= /= %=. The logical-assignment trio is newer: a ??= b assigns only if a is null/undefined, a ||= b if falsy, a &&= b if truthy. They tidy up common default-setting patterns.
x += 5 is x = x + 5; the same pattern covers -= *= /= %=. The logical-assignment trio is newer: a ??= b assigns only if a is null/undefined, a ||= b if falsy, a &&= b if truthy. They tidy up common default-setting patterns.
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