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class ChainCalculator {
constructor(initialValue = 0) {
this.value = initialValue;
}
add(number) {
this.value += number;
return this; // Return `this` to enable chaining
}
subtract(number) {
this.value -= number;
return this;
}
multiply(number) {
this.value *= number;
return this;
}
divide(number) {
if (number === 0) {
throw new Error("Division by zero is not allowed.");
}
this.value /= number;
return this;
}
getResult() {
return this.value;
}
reset() {
this.value = 0;
return this;
}
}
// Example usage:
const calculator = new ChainCalculator(10);
const result = calculator
.add(5) // 10 + 5 = 15
.subtract(3) // 15 - 3 = 12
.multiply(4) // 12 * 4 = 48
.divide(2) // 48 / 2 = 24
.getResult();
console.log(result); // Output: 24
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