js中hex16進制顏色轉rgb(rgba)

js中hex16進制顏色轉rgb(rgba)


/**
*
* @param hex 例如:"#23ff45"
* @param opacity 透明度
* @returns {string}
*/
function hexToRgba(hex, opacity) {
return "rgba(" + parseInt("0x" + hex.slice(1, 3)) + "," + parseInt("0x" + hex.slice(3, 5)) + "," + parseInt("0x" + hex.slice(5, 7)) + "," + opacity + ")";
}