Variable isObject

Type Declaration

• • (value: unknown): value is Record<string | number | symbol, unknown>

  • Type guard to check if a value is a non-null object

    Useful for safely checking if a value is an object before accessing properties. Filters out null, arrays, and primitive values.

    Parameters

    • value: unknown

      Value to check

    Returns value is Record<string | number | symbol, unknown>

    True if value is a non-null object (excludes arrays)

    Example

    isObject({})              // true
    isObject({ key: 'val' })  // true
    isObject(null)            // false
    isObject([])              // false (arrays excluded)
    isObject('string')        // false
    isObject(123)             // false
    
    // Usage in code
    const data: unknown = getUserData();
    if (isObject(data) && 'name' in data) {
      console.log(data.name); // Safe property access
    }
    Copy