Exercises
- What is the result of executing each of these lines in the console? Why?
> var a; typeof a; > var s = '1s'; s++; > !!"false"; > !!undefined; > typeof -Infinity; > 10 % "0"; > undefined == null; > false === ""; > typeof "2E+2"; > a = 3e+3; a++;
- What is the value of v after the following?
> var v = v || 10;
Experiment by first setting
v
to100
,0
, ornull
. - Write a small program that prints out the multiplication table. Hint: use a loop nested inside another loop.
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