_{Official ZPE/YASS documentation}list_dequeue

list_dequeue (list l) ⇒ mixed

Gets and removes the first element from the list and returns the value.

Notes

Prior to version 1.7.3, this function would return a new list containing the updated list and the return value.

Prior to version 1.9.8

Prior to version 1.9.8 (Chirnside), this function would return false when the list had a size smaller than 1. As of version 1.9.8 it returns a null.

Prior to version 1.8.7

Prior to version 1.8.7 (Portman), there is an implementation issue in which list_pop and list_dequeue have their implementations the wrong way around. It appears that the names were given to them the wrong way around when they were added. Version 1.8.7 now makes list_pop take the element at the end of list or array and list_dequeue take from the start of the list or array.