front-end-interview-questions
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【Vue】返回不是纯对象 vue 是怎么做的
if (!isPlainObject(data)) {
data = {};
process.env.NODE_ENV !== "production" &&
warn(
"data functions should return an object:\n" +
"https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function",
vm
);
}