replaceFirst

E[] replaceFirst(E,  R1,  R2)(E[]  subject,  R1 from,  R2 to) if (isDynamicArray!(E[])  &&
     isForwardRange!R1 &&  is(typeof(appender!(E[])().put(from[0 ..  1])))  &&
     isForwardRange!R2 &&  is(typeof(appender!(E[])().put(to[0 ..  1]))))

Replaces the first occurrence of from with to in subject.

Parameters

`subject`	the array to scan
`from`	the item to replace
`to`	the item to replace `from` with

Returns

A new array without changing the contents of subject, or the original

array if no match is found.