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16 lines
447 B
JavaScript
16 lines
447 B
JavaScript
test("reassignment to const", () => {
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const constantValue = 1;
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expect(() => {
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constantValue = 2;
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}).toThrowWithMessage(TypeError, "Invalid assignment to const variable");
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expect(constantValue).toBe(1);
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});
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test("const creation in inner scope", () => {
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const constantValue = 1;
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do {
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const constantValue = 2;
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expect(constantValue).toBe(2);
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} while (false);
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expect(constantValue).toBe(1);
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});
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