JS - 获取 object 属性值

Question

Is it possible to get any property value dynamically in a followed piece of code with a name that we can't predict?

Getting value by object['keyName'] NOT fit here because we DON'T KNOW the property name.

Our property names can be ANY and NOT predictable.

let arr = [{a: 'a'}, {b: 'b'}];
let filtered = [];

filtered = arr.filter(item => {
    return item.'some property' === 'a';
});

Answer 1

You can use Object.values() to get an array of the values, and then use Array.includes() to check if the requested value is found in the array:

 const arr = [{a: 'a'}, {b: 'b'}]; const filtered = arr.filter(item => Object.values(item) // get an array of values from the object ['a'] or ['b'] in this case.includes('a') // check if the array of values contains 'a' ); console.log(filtered)