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Throwing Different Types - Error Handling | JavaScript | Repovive

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JavaScript22 sections · 783 units18h total

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Throwing Different Types

Use specific error types

Throw specific error types to give callers more information. Use built-in types or create custom ones.

function setAge(age) {
  if (typeof age !== "number") {
    throw new TypeError("Age must be a number");
  }
  if (age < 0 || age > 150) {
    throw new RangeError("Age must be 0-150");
  }
}

Specific types help callers handle different errors differently.