mapContext.key
Property Description |
The key to be processed during the map stage.
Note:
Each key cannot exceed 4000 bytes. |
Type |
string |
Since |
2015.2 |
Syntax
The following code snippet shows the syntax for this member. It is not a functional example. For a complete script example, see Map/Reduce Script Samples.
// Add additional code
...
context.write({
key: context.value[i],
value: 1
});
...
// Add additional code