Leetcode-js/2726-Calculator-with-Method-Chaining/2726-CalculatorWithMethodChaining.js at main · PranavNikam-15/Leetcode-js · GitHub

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class Calculator {

    /**
     * @param {number} value
     */
    constructor(value) {
        this.result = value;
    }

    /**
     * @param {number} value
     * @return {Calculator}
     */
    add(value){
        this.result += value;
        return this;
    }

    /**
     * @param {number} value
     * @return {Calculator}
     */
    subtract(value){
        this.result -= value;
        return this;
    }

    /**
     * @param {number} value
     * @return {Calculator}
     */
    multiply(value) {
        this.result *= value;
        return this;
    }

    /**
     * @param {number} value
     * @return {Calculator}
     */
    divide(value) {
        if(value === 0) {
            throw new Error("Division by zero is not allowed");
        } else {
            this.result /= value;
            return this;
        }
    }

    /**
     * @param {number} value
     * @return {Calculator}
     */
    power(value) {
        this.result = Math.pow(this.result, value);
        return this;
    }

    /**
     * @return {number}
     */
    getResult() {
        return this.result;
    }
}