let reg = /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/;
console.log(reg.test("#000"))
console.log(reg.test("#e6e6e6"))
console.log(reg.test("#008c8c8"))
console.log(reg.test("#6787687687"))
JS——使用正则表达式验证十六进制颜色代码
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Origin blog.csdn.net/Kiruthika/article/details/120464828
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