javascript

CHAPTER 2 ■ TYPE CONVERSION
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Figure 2–17. Where’d the array of substrings go?
As noted earlier in the chapter, split(), like any other string method, does not modify the string
value it’s called upon. Rather, split() returns a new value. We’d need to save the array to a new variable
or overwrite villains. Let’s do the latter, verifying our work with Figure 2–18:
var villains = "Green Goblin, Doctor Octopus, Venom, Hobgoblin, and Sandman";
villains = villains.split(/, (?:and )?/g);
villains[1];
// "Doctor Octopus"
Figure 2–18. Overwriting the string in villains with the array returned by split()