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Returns true if a dependency is available, otherwise false. |
Syntax
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if (uHas(file, ver)) {
// do something that needs that file
} else {
// do it a different way
} |
Parameters
| Parameter | Type | Mandatory | Notes | Util.js version |
|---|---|---|---|---|
| file | String |  | Filename of dependency | 0.8 |
| ver | Number |  | Minimum version of that file | 0.8 |
Return Values
| Value | Type | Notes | Util.js version |
|---|---|---|---|
| true | Boolean | Indicates the file (and optionally version) are available. | 0.8 |
| false | Boolean | Either:
| 0.8 |
| <error> | Error | Something unexpected happened, most likely invalid parameters. | 0.8 |
| <object> | Object | Object with named properties (file names) and numeric values (versions) of all provided libraries. See "NotesuHas()" below for more information. |
Example
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function bleh() {
if (uHas("foo.js",0.3)) {
// do it the foo.js v0.3 or higher way
} else if (uHas("foo.js")) {
// do it the foo.js v0.2 or earlier way
} else {
// do it without using foo.js
}
} |
Notes
You can get a list of all provided dependencies using Diag API Diagnostics or by calling uHas() without any parameters.
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AvailabilityRequires:
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See AlsoRelated documentation:
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