多个'如果'语句？ [英] Multiple 'If' statements?

问题描述

假设我有一个功能 checkTime ，如下所示，我必须同时检查多个条件。

Assume i have a function checkTime like the one below where i have to check for multiple condition simultaneously.

var result=0;
function checkTime(time1, time2) {

    if (time1 >= 0 && time2 <= 0) {
        result = 1;
    }
    else if (time1 >= 0 && time2 <= 1) {
        result = 4;
    }
    else if (time1 >= 2 && time2 <= 3) {
        result = 5;
    }
    else if (time1 >= 4 && time2 <= 6) {
        result = 6;
    }
    else if (time1 >= 7 && time2 <= 9) {
        result = 7;
    }
    else if (time1 >= 11 && time2 <= 12) {
        result = 8;
    }
    else if (time1 >= 13 && time2 <= 15) {
        result = 9;
    }
    else if (time1 >= 16 && time2 <= 17) {
        result = 10;
    }
    else if (time1 >= 19 && time2 <= 20) {
        result = 11;
    }
    return result;
}

（上面给出的例子是假设的）

(The above given example is hypothetical)

我使用的功能完全有效，但是：

The function i have used totally works,but:

• 是否有更好的方法或程序或公式可供更换<？li>
  

• Is there a better method or procedure or formula to replace this?(where it doesnt have to be this lengthy or ugly)

Thanx！

推荐答案

您可以使用数组来表示所有组合：

You can use an array to represent all the combination:

tests = [
    { time1: 0, time2: 0, result: 1 },
    { time1: 0: time2: 1, result: 4 },
    ...
];

for (var i = 0; i < tests.length; i++) {
    if (time1 >= tests[i].time1 && time2 <= tests[i].time2) {
        return tests[i].result;
    }
}

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