JavaScript 将hex表示方式转换为rgb表示方式(这里返回rgb数组模式)
JavaScript 将hex表示方式转换为rgb表示方式(这里返回rgb数组模式)
function hexToRgb(sColor, str = true) {
let reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
sColor = sColor.toLowerCase();
if (sColor && reg.test(sColor)) {
if (sColor.length === 4) {
let sColorNew = "#";
for (let i = 1; i < 4; i += 1) {
sColorNew += sColor.slice(i, i + 1).concat(sColor.slice(i, i + 1));
}
sColor = sColorNew;
}
//处理六位的颜色值
let sColorChange = [];
for (let i = 1; i < 7; i += 2) {
sColorChange.push(parseInt("0x" + sColor.slice(i, i + 2)));
}
if(!str) {
return sColorChange;
} else {
return `rgb(${sColorChange[0]},${sColorChange[1]},${sColorChange[2]})`;
}
} else if (/^(rgb|RGB)/.test(sColor)) {
let arr = sColor.replace(/(?:\(|\)|rgb|RGB)*/g, "").split(",")
return arr.map(val => Number(val));
} else {
return sColor;
}
};
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