Never use null unless you're trying to express an actual null value.
Checking for !variable is usually a sufficient check for undefined unless the variable is boolean.
Never use == for comparison unless you have a deep understanding of what it's comparing.
If implicit type coercision is confusing, use Typescript.
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Never use null unless you're trying to express an actual null value.
Checking for !variable is usually a sufficient check for undefined unless the variable is boolean.
Never use == for comparison unless you have a deep understanding of what it's comparing.
If implicit type coercision is confusing, use Typescript.