Function to check that the given compression is a valid 7-Zip compression command. This function is an internal function used by the methods File.zip() and Folder.zip().
The function validZipCompression() is located in the file zip.jsxinc.
Valid compressions are:
| Compression | Meaning |
|---|---|
| 0 | No compression |
| 1 | Very low compression |
| 3 | Fast compression |
| 5 | Normal compression |
| 7 | High compression |
| 9 | Ultra compression |
| false | Use default compression |
Usage
var compression = 5;
if(validZipCompression(compression))
file.zip("myarchive.zip", "tzip", compression, "a");Parameters
| Parameter | Data type | Required | Description |
|---|---|---|---|
| compression | String or Number |  |
The compression. |
Return values
| Value | Meaning |
|---|---|
| true | The compression is a valid 7-Zip compression. |
| false | The compression is not a valid 7-Zip compression. |