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 · 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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