This article covers features introduced in SpiderMonkey 31
Convert any JavaScript value to a string.
Syntax
#include "js/Conversions.h" // as of SpiderMonkey 38; previously in jsapi.h JSString* JS::ToString(JSContext *cx, JS::HandleValue v)
| Name | Type | Description | 
|---|---|---|
| cx | JSContext * | The context in which to perform the conversion. Requires request. In a JS_THREADSAFEbuild, the caller must be in a request on thisJSContext. | 
| v | JS::HandleValue | The value to convert. | 
Description
JS::ToString returns a string representation of a JavaScript value.
If v.isString() is true, it calls v.toString(). Otherwise, it converts the value to string.
On success, JS::ToString returns a JSString instance. On error or exception, it returns nullptr.