vue3 toRefs()函数用法

function isReactive(value) {
    if (isReadonly(value)) {
        return isReactive(value["__v_raw" /* RAW */]);
    }
    return !!(value && value["__v_isReactive" /* IS_REACTIVE */]);
}
function isReadonly(value) {
    return !!(value && value["__v_isReadonly" /* IS_READONLY */]);
}
function isProxy(value) {
    return isReactive(value) || isReadonly(value);
}
const isArray = Array.isArray
function toRefs(object) {
    if (!isProxy(object)) {
        console.warn(`toRefs() expects a reactive object but received a plain one.`);
    }
    const ret = isArray(object) ? new Array(object.length) : {};
    for (const key in object) {
        ret[key] = toRef(object, key);
    }
    return ret;
}


const obj = {
    a:4,
    b:2
}

const result = toRefs(obj)
console.log(result)

这里提示了传入的object必须是一个reactive  object  但是我们传了一个普通对象，还是可以运行的。 

标签：toRefs,return,isReadonly,object,value,用法,vue3,const,isReactive
来源： https://blog.csdn.net/wx479/article/details/121093180