Implements two crucial JSON functions.
Parses JSON string.
Returns JSON representation of variable. The maxDepth argument specifies maximum depth for recursive structures; -1 signifies no depth limit.
Cyclic structures are detected and safely interrupted, but could not be further restored.
var a = {x:"y", number:123};
var b = OAT.JSON.stringify(a,-1);
var c = OAT.JSON.parse(b); // c now equals a