The void operator evaluates the given expression and then returns undefined. The void operator is often used merely to obtain the undefined primitive value, usually using “void(0)” (which is equivalent to “void 0”). In these cases, the global variable undefined can be used instead (assuming it has not been assigned to a non-default value). An … Read more
Nobody seems to be explaining the difference between an array and an object. [] is declaring an array. {} is declaring an object. An array has all the features of an object with additional features (you can think of an array like a sub-class of an object) where additional methods and capabilities are added in … Read more
This is not perfect (due to drawing steps …), but it can help you : http://jsfiddle.net/afkLY/2/ HTML: Javascript: The idea is to draw the disc line by line with a hue value corresponding to the line direction. You can change the color base rotation by adding a radius angle to rad variable (adding -pi/2 to rad would make the … Read more