Gets the blue value of a color.
blue() extracts the blue value from a p5.Color object, an array of color components, or a CSS color string.
By default, blue() returns a color's blue value in the range 0 to 255. If the colorMode() is set to RGB, it returns the blue value in the given range.
示例
语法
blue(color)
参数
color
p5.Color|Number[]|String:
p5.Color object, array of color components, or CSS color string.
返回值
Number: the blue value.
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