Versions

[{“Name”:“6”,“GroupName”:null},{“Name”:“7”,“GroupName”:null},{“Name”:“8”,“GroupName”:null}]

Syntax

• new WeakMap([iterable]);
• weakmap.get(key);
• weakmap.set(key, value);
• weakmap.has(key);
• weakmap.delete(key);

Remarks

For uses of WeakMap, see What are the actual uses of ES6 WeakMap?.