Add-to-Array-Begin

Command Description

Add to Array's head and Return it

Command Prototype

arrRet = Unshift(array,item)

Parameter Description

Parameter	Required	Type	Default	Description
array	True	expression	[]	The array to be appended
item	True	expression	""	The element to prepend to the array

return

arrRet，The variable used to save the output of the command.

Demo

TracePrint("----------------------Add elements to the head of the array------------------- -----") 
//------------------------------------------------------------------------------- 
//[Remarks] Add elements to the head of the array and return the array. 
//Input parameter 1: 
//      array--Array to add elements to. 
//Input parameter 2: 
//      item--The element to add to the array. 
//out parameters: 
//      arrRet--The variable to which the output of the function call is saved. 
// 
//Command prototype: arrRet=Unshift(array, item) 
//------------------------------------------------------------------------------- 
arrRet=Unshift(["b","c"],"a") 
TracePrint(arrRet)