我试图通过一个对象，和一些属性，我有有限数量的值，他们可以分配给。下面是我目前检查它们价值的方法：
for (const [attribute, value] of Object.entries(params.object)) {
if(attribute == "accountType")
if(value != "external" && value != "internal")
return { status: `Failed! '${attribute}' must only equal to 'internal' or 'external'` };
else if(attribute == "dnsName")
if(value.match('^[a-z]*-[0-9]*$') == null)
return { status: `Failed! '${attribute}' must follow the pattern [a-z]*-[0-9]*` };
else if(attribute == "edition")
if(value != "starter" && value != "basic" && value != "classic")
return { status: `Failed! '${attribute}' must only equal to 'starter', 'basic' or 'classic'` };
else if(attribute == "forceProvision" || attribute == "installSoltions")
if (typeof value !== "boolean")
return { status: `Failed! '${attribute}' must be of type boolean true/false` };
}
有没有办法对此进行优化？
对于不需要模式匹配的简单情况，可以指定format对象并执行以下操作：
// the arrays represent the possible values an object respecting this format can take.
let format = {
greeting: ['hello', 'goodbye'],
direction: ['right', 'left']
}
// here's a test object that does not respect said format.
let a = {
greeting: 'hello',
direction: 'not a desirable value'
};
for(const [attribute, value] of Object.entries(a)) {
// - 1 on indexOf means not present in array. Here we check that the
// value of the attribute respects the format.
if(format[attribute].indexOf(value) == -1) {
console.log(`Incorrect format for ${attribute}, expected ${format[attribute]}`);
} else {
// saul'goodman
console.log(`${attribute} correctly formatted.`);
}
}
希望这能帮你解决问题。
