Methods
isPotentialId(value, prefixopt, nullable, idRexopt, nullable, postfixopt, nullable, maskFixesopt, nullable) → {String|Boolean}
Determines if a given value is potentially a valid id for something, because it matches a format of given prefix, postfix and id regex. "Potential", because we can only assume by the format, we do not actually know if the id really matches anything like a database entry for example.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
value |
String | Number | the value to test, will be stringified |
||
prefix |
String |
<optional> <nullable> |
'' | a prefix for the id |
idRex |
String |
<optional> <nullable> |
'[1-9][0-9]*' | the regex string to use to identify the id part of the value |
postfix |
String |
<optional> <nullable> |
'' | a postfix for the id |
maskFixes |
Boolean |
<optional> <nullable> |
true | usually, prefixes are not treated as regexes and are automatically masked, if you'd like to define complex pre- and postfixes using regexes, set this to false |
Returns:
if value is potential id according to format, the id is returned as a string (still usable as a truthy value), otherwise the return value is false
- Type
- String | Boolean
Example
if( isPotentialId(id, 'test_(', '[0-9]+', ')') ){
createJsonRequest(`/backend/${id}`).then(() => { alert('done'); });
}