Stack.Push Method (Object)


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Inserts an object at the top of the Stack.

Namespace:   System.Collections
Assembly:  mscorlib (in mscorlib.dll)

abstract Push : 
        obj:Object -> unit
override Push : 
        obj:Object -> unit


Type: System.Object

The Object to push onto the Stack. The value can be null.

If Count already equals the capacity, the capacity of the Stack is increased by automatically reallocating the internal array, and the existing elements are copied to the new array before the new element is added.

null can be pushed onto the Stack as a placeholder, if needed. It occupies a slot in the stack and is treated like any object.

If Count is less than the capacity of the stack, Push is an O(1) operation. If the capacity needs to be increased to accommodate the new element, Push becomes an O(n) operation, where n is Count.

The following example shows how to add elements to the Stack, remove elements from the Stack, or view the element at the top of the Stack.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
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