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let x = process.argv[2] || "abc";

I am new to javascript. I don't think || is a boolean OR operator here. What does this line mean? Why using OR on some strings? Does this mean if process.argv[2] is null, then assign "abc" to x?

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  • This is a boolean or gate. If the contents of process.argv[2] is falsy (process.argv[2] == false) then it will assign "abc" to x instead. Commented Jul 3, 2017 at 13:38
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    You inspired from this (asked few min ago) ? stackoverflow.com/questions/44885901/… Commented Jul 3, 2017 at 13:39
  • Logical_operators Commented Jul 3, 2017 at 13:39
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