ladybird/Libraries/LibJS/Tests/const-reassignment.js

16 lines
447 B
JavaScript

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