JSON Object
The JSON object contains methods for parsing JSON and converting values to JSON.
assert(JSON.stringify({}) === '{}');
assert(JSON.stringify(true) === 'true');
assert(JSON.stringify("foo") === '"foo"');
assert(JSON.stringify([1, "false", false]) === '[1,"false",false]');
assert(JSON.stringify({ x: 5 }) === '{"x":5}');
JSON.stringify({x: 5, y: 6}); // '{"x":5,"y":6}' or '{"y":6,"x":5}'
Return a JSON string corresponding to the specified value, optionally including only certain properties or replacing property values in a user- defined manner.
JSON.parse('{}'); // {}
JSON.parse('true'); // true
JSON.parse('"foo"'); // "foo"
JSON.parse('[1, 5, "false"]'); // [1, 5, "false"]
JSON.parse('null'); // null
Parse a string as JSON, optionally transform the produced value and its properties, and return the value.
Browser Compatibility
Newer browsers support the JSON object natively. Well-known polyfills
for the JSON object are JSON2 and JSON3 that will only define
JSON.stringify and JSON.parse if they’re not already defined,
leaving any browser native implementation intact.