How to convert these objects to array in typescript

Question

How can I convert a string to a Typescript array?. Please help me.

Look at the code:

private validateEmptyOption(): any {
    console.log("CHECKED")
    let isValid = true;
    this.currentForm.sections.forEach((section: Section) => {
        section.fields.forEach((field: Field) => {
            debugger
            if (field.type === 'select') {
                console.log(field)

                const emptyOptionSections = JSON.parse(field.property).emptyOptionSections;

                if ((emptyOptionSections !== undefined) && (emptyOptionSections == null)) {
                    alert('QAZWSX');
                    isValid = false;
                }
             }
        return isValid;
        });
    });
}

This is my Result in console. I want do this convert to array and looping it.

Expected Result : There should be a validation message to inform that select controller cannot be empty

Actual Result : Form can save without any validation

Answer 1

If you would use validateEmptyOption(): boolean you would get the hint, that your function does not return any value. The problem is your return statement if inside other functions thus not beeing return by the main one.

There is almost never a need to use any as a type with typescript. (Until you do very complicated things...)

function validateEmptyOption(): boolean {
    console.log("CHECKED")

    return this.currentForm.sections.every((section: Section) => {
        return section.fields.every((field: Field) => {
            debugger
            if (field.type !== 'select') {
                return false;
            }

            console.log(field)

            try {
                const emptyOptionSections = JSON.parse(field.property).emptyOptionSections;
                if ((emptyOptionSections !== undefined) && (emptyOptionSections == null)) {
                    alert('QAZWSX');
                    return false;
                }
            } catch (e) {
                return false;
            }

            return true
        });
    });
}

The every method is used to check if for every value inner function returns true.

Answer 2

Because your return statement was written in the wrong place. Check your { } ( )