JavaScript简易计算器运算符失效问题与修正指南

inp1 = prompt("Enter in a number");
inp1 = Number.parseInt(inp1);
let js1 = inp1;

op = prompt("Enter an operator");
// 错误点1: 用户输入的运算符被覆盖
op = ["+", "-", "*", "/"]; 

inp2 = prompt("Enter another number");
inp2 = Number.parseInt(inp2);
let js2 = inp2;

function addition(x, y) {
    return (x + y);
}
function subtraction(x, y) {
    return (x - y);
}
function multiplication(x, y) {
    return (x * y);
}
function division(x, y) {
    return (x / y);
}

// 错误点2: 条件判断使用了赋值运算符
if (op = "+") { 
    // 错误点3: 加法函数调用时参数错误
    console.log(addition(js1, js1)); 
}
else if (op = "-") {
    console.log(subtraction(js1, js2));
}
else if (op = "*") {
    console.log(multiplication(js1, js2));
}
else if (op = "/") {
    console.log(division(js1, js2));
}
else {
    console.log("Sorry! An Error has occurred");
}

// 获取第一个数字并转换为整数
let inp1 = prompt("Enter in a number");
let js1 = Number.parseInt(inp1);

// 获取用户输入的运算符
let op = prompt("Enter an operator (+, -, *, /)");

// 获取第二个数字并转换为整数
let inp2 = prompt("Enter another number");
let js2 = Number.parseInt(inp2);

// 定义四则运算函数
function addition(x, y) {
    return (x + y);
}
function subtraction(x, y) {
    return (x - y);
}
function multiplication(x, y) {
    return (x * y);
}
function division(x, y) {
    // 避免除以零的错误
    if (y === 0) {
        return "Error: Division by zero";
    }
    return (x / y);
}

let result; // 用于存储计算结果

// 根据运算符执行相应的计算
if (op === "+") { // 使用严格相等比较运算符
    result = addition(js1, js2); // 修正加法函数参数
}
else if (op === "-") {
    result = subtraction(js1, js2);
}
else if (op === "*") {
    result = multiplication(js1, js2);
}
else if (op === "/") {
    result = division(js1, js2);
}
else {
    result = "Sorry! Invalid operator entered.";
}

// 输出计算结果
console.log(result);