Environment Support
| JavaScript 1.5 (browser) | JavaScript 1.7 | JavaScript 1.8 | |
|---|---|---|---|
| Array and String generics | Support | Supported, some native | Supported, some native | JS 1.6 array .indexOf/.lastIndexOf/.forEach/.every/.filter/.map/.every/.some | Support | Native | Native | JS 1.8 array .reduce/.reduceRight | Support | Support | Native | Array iterator `for each ( var item in array )` and `for ( var key in array )` | No support | Support | Support | Array extras | Support | Support | Support | Array .diff/.intersect | Support | Support | Enhanced | String extras | Support | Support | Support | Number and Math extras | Support | Support | Support | Object invert/merge/keys/values | Support | Support | Support | Object.count | Support | Support | Enhanced | String getters | No support | Support | Support |