Web Reference: It is not necessary to break the last case. The switch ends (breaks) there anyway. The break keyword is crucial for preventing a "fall-through." Without break, the code will continue to execute the next case blocks (and the default block if present) even if their values do not match the expression. Jul 8, 2025 Β· The switch statement evaluates an expression, matching the expression's value against a series of case clauses, and executes statements after the first case clause with a matching value, until a break statement is encountered. The point is that the SWITCH construct is to build a jump-table with the processing addresses of each CASE-code and jump directly to the desired CASE value based on the calculated SWITCH expression using a ONE assembly instruction, which makes it fast.
YouTube Excerpt: 00:00:00 example 1 00:03:28 break 00:04:14 example 2.
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This Javascript Switch Case Will Net Worth 2026: Salary, Income & Wealth Net Worth & Biography

Estimated Worth: $10M - $44M
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Last Updated: April 7, 2026
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