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PrependTo
PrependTo[
s
,
elem
] prepends elem to the value of s, and resets s to the result.
PrependTo[
s
,
elem
] is equivalent to s
=
Prepend[
s
,
elem
].
PrependTo[
s
,
elem
] does not evaluate s.
You can use PrependTo repeatedly to build up a list.
See the Mathematica book: Section 2.4.4.
See also: AppendTo.
Further Examples
This prepends the number 44 to the beginning of the list.
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The original list is changed as a side effect.
In[3]:= 
Out[3]= 
On the other hand, Prepend does not change the new version of the list.
In[4]:= 
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In[5]:= 
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In[6]:= 
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT. SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION. | | | |
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