JAVASCRIPT-BASICS4 MIN READ
Sort values by type before truthiness
Classify common JavaScript values by their type and common condition-check risk.
Place each value or check into the bucket that describes the main risk when using it in a condition. Valid zero or empty-looking value Missing or not assigned Object reference Explicit boolean 0 as a quantity '' from an optional note field undefined from a missing property null returned for no selected user [] from an empty result list {} from an empty settings object false from an unchecked checkbox true from a feature toggle
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