Q5. Interview QA | NodeJS | Dynamic JSON | Conversion | Tamil

Explaining: Convert the JSON into the correct format. Dynamic JSON conversion

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Coding:
// input = [
// {name: 'firstname', value: 'Hermione'},
// {name: 'age', value: '28'},
// {name: 'language', value: 'English'},
// {name: 'language', value: 'Tamil'},
// {name: 'language', value: 'Hindi'}
// ]

// Expected Output -
// {
// firstname: 'Hermione',
// age: '28',
// language: ['English', 'Tamil', 'Hindi']
// }

var output_data = {};

var input_data = [
{ name: 'firstname', value: 'Hermione' },
{ name: 'age', value: '28' },
{ name: 'language', value: 'English' },
{ name: 'language', value: 'Tamil' },
{ name: 'language', value: 'Hindi' },
];

input_data.forEach(detail);

function detail(item) {

//console.log(item.name);

var length = input_data.filter(function (value) {
//console.log(item.name);
return value.name == item.name
}).length;

//console.log(length);
if (length ﹥ 1) {

if (Array.isArray(output_data[item.name])) {
output_data[item.name].push(item.value);
//console.log("ARRAY IF - ", output_data[item.name]);
} else {
output_data[item.name] = [];
output_data[item.name].push(item.value);
//console.log("ARRAY ELSE - ", output_data[item.name]);
}
} else {
output_data[item.name] = item.value;
//console.log("LENGTH ELSE - ", output_data[item.name]);
}
}

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