First, that's not an array. Second, what you're calling the "index" is normally called the property name or key. There's no way to get the value ... ... <看更多>

有時要將JS 物件轉成其他資料結構，所以需要迭代物件中的所有property，過去會用for-in 陳述句，但只想列舉own property，就必須用hasOwnProperty() ... ... <看更多>

values () and Object.entries() have been available since ECMAScript 2017. Suppose that you have a person object as follows: const person ... ... <看更多>

Get a nested object property by passing a dot notation string as the property name ... getProperty.js ... @return the value of the property in question. ... <看更多>

And then we're going to do the same thing or object two, and if you want to see what these values are, you ... ... <看更多>