/**
* @description参数是否是其中之一
* @param {*string} value
* @param {*array} validList
* @returns {*boolean}
*/
export function oneOf(value, validList) {
for (let i = 0; i < validList.length; i++) {
if (value == validList[i]) {
return true;
}
}
return false;
}
/**
*@description 文件大小进行格式化,
* @param {*文件大小 B} filesize
* @returns {*文件大小格式化} 如果小于1kb返回<1KB,如果小于1M,向下取整，返回整数KB,如果大于1M返回两位小数，类似1.31M
*/
export function FormatSize(fileSize) {
if (fileSize < 1024) {
return "<1KB";
} else {
var arrUnit = ["B", "KB", "M", "G", "T", "P"];
var powerIndex = Math.log2(fileSize) / 10;
powerIndex = Math.floor(powerIndex);
// index should in the unit range!
var len = arrUnit.length;
powerIndex = powerIndex < len ? powerIndex : len - 1;
var sizeFormatted = fileSize / Math.pow(2, powerIndex * 10);
if (powerIndex == "1") {
sizeFormatted = Math.floor(sizeFormatted);
} else {
sizeFormatted = sizeFormatted.toFixed(2);
}
return sizeFormatted + " " + arrUnit[powerIndex];
}
}
/**
* js数组排序 支持数字和字符串
* @param params
* @param arrObj obj 必填 数组对象
* @param keyName string 必填 要排序的属性名称
* @param type int 选填 默认type:0 正顺 type:1反顺
* @description
* 使用示例：
var temp = [
{"name":"zjf","score":50,"age":10},
{"name":"lyy","score":90,"age":5},
{"name":"zzx","score":90,"age":12}
];
//根据age排序
var temp1 = arrItemSort(temp,"age",1);
*/
export function arrItemSort(arrObj, keyName, type = 0, isDate = 0) {
//这里如果 直接等于arrObj，相当于只是对对象的引用，改变排序会同时影响原有对象的排序，而通过arrObj.slice(0)，
//表示把对象复制给另一个对象，两者间互不影响
if (!arrObj) {
return [];
}
var tempArrObj = arrObj.slice(0);
var compare = function(keyName, type) {
return function(obj1, obj2) {
var val1 = obj1[keyName];
var val2 = obj2[keyName];
if (isDate) {
val1 = new Date(obj1[keyName]).getTime();
val2 = new Date(obj2[keyName]).getTime();
console.log(val1, val2);
}
if (!isNaN(Number(val1)) && !isNaN(Number(val2))) {
val1 = Number(val1);
val2 = Number(val2);
}
//如果值为空的，放在最后
if (val1 == null && val2 == null) {
return 0;
} else if (val1 == null && val2 != null) {
return type == 1 ? -1 : 1;
} else if (val2 == null && val1 != null) {
return type == 1 ? 1 : -1;
}
//排序
if (val1 < val2) {
return type == 1 ? 1 : -1;
} else if (val1 > val2) {
return type == 1 ? -1 : 1;
} else {
return 0;
}
};
};
return tempArrObj.sort(compare(keyName, type));
}
//文件类型整合
export function getFileType(fileType) {
// let filecolor = "rgb(91, 174, 246)";
let initfileType = new String(fileType);
if (initfileType.length > 1) {
initfileType =
initfileType.substr(0, 1).toUpperCase() + initfileType.substr(1);
} else {
initfileType = initfileType.toUpperCase();
}
let audioArr = [
"wav",
"mp3",
"au",
"aif",
"aiff",
"ram",
"wma",
"mmf",
"amr",
"aac",
"flac"
];
let radioArr = [
"avi",
"mov",
"asf",
"wmv",
"navi",
"3gp",
"ra",
"ram",
"mkv",
"flv",
"f4v",
"rmvb",
"webm",
"mp4"
];
let imageArr = [
"jpg",
"png",
"jpeg",
"bmp",
"pcx",
"tif",
"tga",
"exif",
"fpx",
"svg",
"cdr",
"pcd",
"dxf",
"ufo",
"esp",
"ai",
"hdri",
"raw",
"wmf",
"flic",
"emp",
"ico"
];
let excelArr = ["xlsx"];
let wordArr = ["doc", "docx"];
let nomalArr = ["pdf", "ppt", "rar", "psd", "txt", "zip", "word"];
if (oneOf(fileType, audioArr)) {
fileType = "audio";
} else if (oneOf(fileType, radioArr)) {
fileType = "radio";
} else if (oneOf(fileType, excelArr)) {
fileType = "excel";
} else if (oneOf(fileType, wordArr)) {
fileType = "word";
} else if (oneOf(fileType, imageArr)) {
fileType = "image";
} else if (oneOf(fileType, nomalArr)) {
} else {
fileType = "others";
}
}
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