chainsaw

const Chainsaw = require('chainsaw'); // Define a constructor function for your chainable interface function CalculatorChain(initialValue) { // Return a Chainsaw instance return Chainsaw(function (saw) { let currentValue = initialValue; // Define chainable methods this.add = function (n) { currentValue += n; console.log(`Added ${n}. Current value: ${currentValue}`); saw.next(); // Move to the next step in the chain }; this.subtract = function (n) { currentValue -= n; console.log(`Subtracted ${n}. Current value: ${currentValue}`); saw.next(); }; this.multiply = function (n) { currentValue *= n; console.log(`Multiplied by ${n}. Current value: ${currentValue}`); saw.next(); }; this.getResult = function (callback) { console.log(`Executing getResult with final value: ${currentValue}`); saw.nest(callback, currentValue); // Pass result to a nested callback }; }); } // Use the chainable interface console.log('Starting calculation chain...'); CalculatorChain(10) .add(5) .subtract(2) .multiply(3) .getResult(function (finalSum) { console.log(`Chain completed. Final sum: ${finalSum}`); if (finalSum > 30) { console.log('Result is greater than 30.'); } else { console.log('Result is not greater than 30.'); } }); // Example with light mode console.log('\nStarting light mode chain...'); const LightCalculator = Chainsaw.light(function (saw) { let currentValue = 0; this.add = function (n) { currentValue += n; console.log(`[Light Mode] Added ${n}. Current value: ${currentValue}`); saw.next(); }; this.finish = function (callback) { console.log(`[Light Mode] Finishing with value: ${currentValue}`); saw.nest(callback, currentValue); }; }); LightCalculator() .add(10) .add(20) .finish(function (result) { console.log(`[Light Mode] Final result: ${result}`); });