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This pull request introduces an exponentiation operation to the existing arithmetic operations in the codebase. The changes include adding a new 'pow' operation in the
calculate
function, updating thecalculate
function in the client-side JavaScript to handle the '^' operation, adding a new button in the HTML for the '^' operation, and adding new tests for the 'subtract' operation.api/controller.js
: Added a 'pow' operation in thecalculate
function to handle exponentiation.public/client.js
: Updated thecalculate
function to handle the '^' operation which corresponds to exponentiation.public/index.html
: Added a new button for the '^' operation which triggers the exponentiation operation.test/arithmetic.test.js
: Added new tests for the 'subtract' operation. It's worth noting that the comment indicates these tests should cover subtraction, multiplication, division, and exponentiation, but only subtraction tests have been added in this pull request.