Ensure that a particular value is present in an array by using TypeScript

I am facing an issue with the following array:

[
    about: "INVALID"
    team: "VALID"
]

My goal is to determine if the array contains any value of INVALID and return false if it does. Here is the code snippet I have attempted:

if (this.forms.indexOf('INVALID') > -1) {
    return false;
}
return true;

Despite my efforts, the code does not seem to be working as expected. It always returns true and I am not able to identify the root cause of the problem.

Answer №1

To correct the object syntax, you should follow these steps:

const data = {
    name: "John Doe",
    age: 30
};

console.log(Object.values(data).includes('John Doe'));

Utilize Object.values to extract the values from the object and Array.includes to check if a specific value is present in the collection.

Answer №2

To verify whether an object contains certain values, you can follow this approach.

let sampleObj = {
    type: "TRUE",
    status: "FALSE"
}

var hasFalseValue = Object.keys(sampleObj).some(element => sampleObj[element] === 'FALSE');

hasFalseValue will output either true or false.

Answer №3

This solution is versatile and can be used for both arrays and objects.

if(JSON.stringify(this.forms).includes('INVALID')){
    return false;
}
return true;

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