How to flatten array or reduce to get true values?-CodePudding

I have the following array of object. I want to get total count where properties are true. i.e in this case total enabled is 5

let data = 
[
    {
        comment: true,
        attachment: true,
        actionPlan: true
    },
    {
        whenValue: '',
        comment: true,
        attachment: false,
        actionPlan: true
    }
]

I tried something below but it didnt worked.

const countObj = questionAttributes.questionMandatoryOptions.reduce((acc, curr) => {
    return {
        //want to get properties having true values
    };
});

For single item in array i can achieve with followign:

const total =
            options[0];
        const totalelections = Object.values(
            total
        ).filter((v) => v).length;

CodePudding user response：

You alresdy found the solution for a single element, so all you really need to do is to iterate over every element in your data and increase a counter with the result of

Object.values(item).filter((v) => v).length;

let data = 
[
    {
        comment: true,
        attachment: true,
        actionPlan: true
    },
    {
        whenValue: '',
        comment: true,
        attachment: false,
        actionPlan: true
    }
]

function countTrueProperties(a_data: any[]): number {
    let count = 0;
    for(const item of a_data){
        count  = Object.values(item).filter((v) => v).length;
    }
    return count;
}

console.log(countTrueProperties(data));