Thinking in verbs rather than nouns

Considering the process of data transformations in terms of verbs rather than nouns is very typical for a functional approach as functions are intuitively associated in our brains with actions, not objects. You may notice the single data item in the script Ch1_3.fsx, which is hugeNumber. The rest are few library functions combined in a certain manner, which transform the hugeNumber data item into a line of the console output. This manner of function combination allows persons reading this code to completely ignore intermediate results of the data transformations at each point where the operator >> occurs in the expression.

The less obvious corollary of this combination is the opportunity for the F# compiler to perform a so-called fusion or the manner of code optimization by merging together some adjacent data transformation steps. For example, when adjacent steps are fused together, the amount of data traversals may decrease.