JSON Parsing Techniques

try {
    const obj = JSON.parse(jsonString);
} catch (error) {
    console.error('Invalid JSON:', error.message);
} # catch parse errors

function isValidJSON(str) {
    try {
        JSON.parse(str);
        return true;
    } catch {
        return false;
    }
} # validate JSON string

const original = { name: 'John', tags: ['js', 'json'] };
const clone = JSON.parse(JSON.stringify(original));
# deep copy object

const jsonArray = '[1, 2, 3, 4, 5]';
const arr = JSON.parse(jsonArray);
console.log(arr[0]); # 1

# For large JSON files:
# Use streaming parsers like:
# - JSONStream (Node.js)
# - oboe.js (browser)