I am working with a JSON body that includes various types of values such as numbers, strings, Booleans, and arrays.
{
"name": "vivek",
"age": 12,
"employed": true,
"cars": ["maruti", "wagonR"]
}
When it comes to the age value, only {"age":12} is considered acceptable. If any other format is entered, the system should prompt for the age to be re-entered (e.g. {"age":"12"}). What are some possible ways to validate this requirement?
To ensure the validity of the JSON data, it is important to parse it and verify the type of the property 'age'. There are additional methods that can be used, but checking the type is more secure as the age property can vary in value. Attempting to access the constructor property directly may lead to unexpected errors.
var jsonData = JSON.parse('JSON DATA GOES HERE');
// Quickly validate if operations on 'jsonData' getters can take place
if (jsonData) {
var personAge = jsonData.age;
if (jsonData.hasOwnProperty('age')) {
var dataType = typeof personAge;
if (dataType !== 'number')
throw new Error('The age property must be a number, not a ' + dataType);
} else {
throw new Error('The age property is missing in the JSON data');
}
}
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