weex-ui-demo/test/unit/utils.js

A rich interaction, lightweight, high performance UI library based on Weex

// px字符串转rem字符串
function px2Rem (pxStr) {
  if (!pxStr) return '0rem'
  let pxNum = parseInt(pxStr.split('px')[0])
  let remStr = `${(pxNum / 75)}rem`
  return remStr
}

// px字符串转rem字符串
function hex2Rgb (hexColor) {
  // 十六进制颜色值的正则表达式
  let reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/
  // 如果是16进制颜色
  if (hexColor && reg.test(hexColor)) {
    if (hexColor.length === 4) {
      let hexColorNew = '#'
      for (let i = 1; i < 4; i += 1) {
        hexColorNew += hexColor.slice(i, i + 1).concat(hexColor.slice(i, i + 1))
      }
      hexColor = hexColorNew
    }
    // 处理六位的颜色值
    let hexColorChange = []
    for (let i = 1; i < 7; i += 2) {
      hexColorChange.push(parseInt('0x' + hexColor.slice(i, i + 2)))
    }
    return 'RGB(' + hexColorChange.join(',') + ')'
  }
  return hexColor
}

export {
  px2Rem,
  hex2Rgb
}