如何在javascript中始终选择不同的变量？

let condition = true; // 假设的条件
let varA = 'Hello';
let varB = 'World';

let selectedVar;
if (condition) {
    selectedVar = varA;
} else {
    selectedVar = varB;
}

console.log(selectedVar); // 输出 'Hello'

let value = 1;

let result;
switch (value) {
    case 1:
        result = 'One';
        break;
    case 2:
        result = 'Two';
        break;
    default:
        result = 'Default';
}
console.log(result); // 输出 'One'

const map = {
    conditionA: 'ValueA',
    conditionB: 'ValueB',
    // ...
};

let condition = 'conditionA';
let selectedValue = map[condition];

console.log(selectedValue); // 输出 'ValueA'

function getValueForConditionA() {
    return 'ValueA';
}

function getValueForConditionB() {
    return 'ValueB';
}

let condition = true;
let selectedValue = condition ? getValueForConditionA() : getValueForConditionB();

console.log(selectedValue); // 输出 'ValueA'

let varA; // 确保在使用之前定义了变量
let varB = 'World';

if (condition) {
    varA = 'Hello';
} else {
    selectedVar = varB;
}

let condition = false; // 确保条件设置正确
let varA = 'Hello';
let varB = 'World';

let selectedVar;
if (condition) {
    selectedVar = varA;
} else {
    selectedVar = varB;
}