Store.setIfUnset()

The Store.set() method stores the value of value in the store under key key, but only if that key does not already hold a value.

Signature

Javascript
Store store.set(mixed key, mixed value)
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This method is chainable as it returns the Store object

Example

Javascript
const store = new Store()
store.set('example', 'Hi there')
store.setIfUnset('example', 'Hi again') // This has no effect