first commit

src/tool/util.js

@@ -0,0 +1,141 @@
+const isEmail = (email)=>{
+    let  reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/
+    let result = reg.test(email)
+    return result
+}
+
+const getUploadUrl = () =>{
+    let url = process.env.VUE_APP_BASE_URL || ''
+    return url
+}	
+ 
+function dataURLtoBlob(dataurl) {
+    var arr = dataurl.split(',');
+    var mime = arr[0].match(/:(.*?);/)[1];
+    var bstr =atob(arr[1]);    
+    var n = bstr.length;     
+    var u8arr =new Uint8Array(n); 
+    while (n--) {
+        u8arr[n] = bstr.charCodeAt(n);
+    }
+    return new Blob([u8arr], {type: mime });
+}
+
+function blobToFile(blob, fileName){
+    blob.lastModifiedDate =new Date();
+    blob.name = fileName;
+    return blob;
+}
+
+function dataURLtoFile(dataurl, filename){
+    var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
+    bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
+    while(n--){
+        u8arr[n] = bstr.charCodeAt(n);
+    }
+    var blob = dataURLtoBlob(dataurl);
+    return blobToFile(blob, filename);
+}
+
+const base64toFile = (dataurl, filename = 'file') => {
+    let arr = dataurl.split(',')
+    let mime = arr[0].match(/:(.*?);/)[1]
+    let suffix = mime.split('/')[1]
+    let bstr = atob(arr[1])
+    let n = bstr.length
+    let u8arr = new Uint8Array(n)
+    while (n--) {
+        u8arr[n] = bstr.charCodeAt(n)
+    }
+    return new File([u8arr], `${filename}.${suffix}`, {
+        type: mime
+    })
+
+}
+
+function rgbToHsv([R, G, B]) {
+    R /= 255
+    G /= 255
+    B /= 255
+    const max = Math.max(R, G, B)
+    const min = Math.min(R, G, B)
+    const range = max - min
+    let V = max
+    let S = V === 0 ? 0 : range / V
+    let H = 0
+    if (R === V) H = (60 * (G - B)) / range
+    if (G === V) H = 120 + (60 * (B - R)) / range
+    if (B === V) H = 240 + (60 * (R - G)) / range
+   
+    if (range === 0) H = 0
+    if (H < 0) H += 360
+    H = (H / 2) * (256 / 180)
+    S *= 255
+    V *= 255
+
+    H = parseInt(H)
+    S = parseInt(S)
+    V = parseInt(V) 
+    return [H, S, V]
+  }
+
+  const formatTime = (timestamp, fmt) =>{
+    // date = new Date(), fmt = 'MM/dd/yyyy';
+    let date = new Date();
+    date.setTime(timestamp * 1000);
+
+    if (!fmt) {
+        formatRule ? (fmt = formatRule) : (fmt = "YYYY-MM-DD hh:mm:ss");
+    }
+    // console.log(formatRule)
+    let o = {
+        'M+': date.getMonth() + 1, // 月份
+        'D+': date.getDate(), // 日
+        'h+': date.getHours(), // 小时
+        'm+': date.getMinutes(), // 分
+        's+': date.getSeconds(), // 秒
+        'q+': Math.floor((date.getMonth() + 3) / 3), // 季度
+        'S+': date.getMilliseconds(), // 毫秒
+        'a': date.getHours() > 12
+            ? 'PM'
+            : 'AM' // 上午还是下午
+    };
+    if (/(Y+)/.test(fmt)) {
+        fmt = fmt.replace(RegExp.$1, (date.getFullYear() + '').substr(4 - RegExp.$1.length));
+    }
+    if(/(a)/.test(fmt)&&o['h+']>12){
+        o['h+'] = o['h+'] - 12
+    }
+    for (let k in o) {
+        if (new RegExp('(' + k + ')').test(fmt)) {
+            fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1)
+                ? (o[k])
+                : (('00' + o[k]).substr(('' + o[k]).length)));
+        }
+    }
+
+    return fmt;
+}
+
+const isMoible = () => {
+    let is_mobile = navigator.userAgent.toLowerCase().match(/(ipad|ipod|iphone|android|coolpad|mmp|smartphone|midp|wap|xoom|symbian|j2me|blackberry|wince)/i) != null;
+    if(is_mobile){
+        return true
+    }else{
+        return false
+    }
+}
+
+
+
+export{
+    isEmail,
+    getUploadUrl,
+    dataURLtoFile,
+    blobToFile,
+    base64toFile,
+    rgbToHsv,
+    formatTime,
+    dataURLtoBlob,
+    isMoible,
+}