eccentricities 怪異、超呼尋常 - unconventional or irregular behaviour

eccentricities 怪異、超呼尋常 - unconventional or irregular behaviour

1. unconventional or irregular behaviour
2. (Mathematics) deviation from a circular path or orbit
3. (Astronomy) a measure of the noncircularity of an elliptical orbit, the distance between the foci divided by the length of the major axis
4. (Mathematics) geometry a number that expresses the shape of a conic section: the ratio of the distance of a point on the curve from a fixed point (the focus) to the distance of the point from a fixed line (the directrix)
5. (Mechanical Engineering) the degree of displacement of the geometric centre of a rotating part from the true centre, esp of the axis of rotation of a wheel or shaft

While JavaScript is perhaps one of the easiest languages to get up and running with, its eccentricities make solid mastery of the language a vastly less common occurrence than in many other languages.

Reference:

https://github.com/getify/You-Dont-Know-JS/blob/master/preface.md