javascript - 如何正确编码/调试复杂的 bool 条件

Question

是否可以这样写一个if语句:

if(a === 0 && (b === 0 || c === 0)){
    if(b === 0 && c === 0){
        //a, b, and c are equal to 0
    }
    else if(b === 0){
        //only a and b are equal to 0
    }
    else {
        //only a and c are equal to 0
    }
}
else {
    //a doesn't equal 0, but b or c could so we test those
}

它似乎在我以类似方式编写的代码中不起作用......也许我写错了？这在我脑海中是有道理的。我该如何构建我的代码以避免这样的困惑？

Answer 1

我纠正了你的其他问题:

if(a === 0 && (b === 0 || c === 0)){
    if(b === 0 && c === 0){
        //a, b, and c are equal to 0
    }
    else if(b === 0){
        //only a and b are equal to 0
    }
    else {
        //only a and c are equal to 0
    }
}
else {
    //   a === 0 and neither b nor c === 0,
    //or a!==0 and neither b nor c === 0,
    //or a!==0 and either b or c or both === 0 
}

我的主张:

if(a === 0 && (b === 0 || c === 0)){
    if(b === 0 && c === 0){
        //a, b, and c are equal to 0
    }
    else if(b === 0){
        //only a and b are equal to 0
    }
    else {
        //only a and c are equal to 0
    }
} else if (a === 0) {
    //a === 0 and neither b nor c === 0,
} else {
    //   a!==0 and neither b nor c === 0,
    //or a!==0 and either b or c or both === 0 
}

另外，你可以考虑按位运算，可能会更清楚。萨鲁多斯，