RainbowOne / RainbowStar Developer Blog

written by:

Mr. Cheung Wai Hung

Founder and CEO

Open Knowledge Association Ltd.

A Non-profit organization in Hong Kong using IT to help the underprivileged.

Balance can be set up as View, Question and Non-question mode. You can move "Drag Item" but cannot submit answer in View mode while you can...

Simplifying Fraction is one of questions' type which is easy to use. During editing, you can just enter Numerator and Denominator directly a...

Fraction is one of questions' type which operating mode is similar to Fill in the blanks. You can adjust its basic setting like Fonts, the c...

Line Chart is a type of chart displayed the trend of data in which each data point is connected by straight line segments. It can display co...

Compass can be used as a graphic or a real compass (your device must support this feature). You can set the language of the text (Chinese an...

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