I was reading a JS book and there was a question asking for output of below:
3e+3
It is giving me 3000. Can someone explain why?
I was reading a JS book and there was a question asking for output of below:
3e+3
It is giving me 3000. Can someone explain why?
3 Answers
Reset to default 9This is called scientific notation, the xey means "x times 10 to the power of y"
In your case, 3 * Math.pow(10, 3); // 3000
e declares an exponent. This is known as exponential or scientific notation.
3e+3 is equal to 3e3 (the + defines a positive number rather than addition), which is equal to 3 * (10^3) which is equal to 3 * (10*10*10) which is equal to 3000.
It's simple scientific notation. 3e+3 is 3 times 10 to the 3rd power.