In Mustache, How to get the index of the current Section

Question

I am using Mustache and using the data

{ \"names\": [ {\"name\":\"John\"}, {\"name\":\"Mary\"} ] }

My mustache template is:

Answer 1

I'm using a pre calculate function to inject '@index' into array.

const putIndexInArray = array => {
    let putIndex = (value, index) => {
        value['@index'] = index;

        return value;
    };

    if (!Array.isArray(array)) {
        return array;
    }

    return array.map(putIndex);
};

Mustache.render(template, {
    array: putIndexInArray(['Homer', 'Marge', 'Lisa'])
});

and then using like this:

{{#array}}
    {{@index}}
{{/array}}