first commit

src/utils/random.ts

@@ -0,0 +1,57 @@
+const hexList: string[] = []
+for (let i = 0; i <= 15; i++) {
+    hexList[i] = i.toString(16)
+}
+
+/**
+ * 生成随机数
+ * @param min 最小值
+ * @param max 最大值
+ * @returns 生成的随机数
+ */
+export function randomNum(min: number, max: number) {
+    switch (arguments.length) {
+        case 1:
+            return parseInt((Math.random() * min + 1).toString(), 10)
+            break
+        case 2:
+            return parseInt((Math.random() * (max - min + 1) + min).toString(), 10)
+            break
+        default:
+            return 0
+            break
+    }
+}
+
+/**
+ * 生成全球唯一标识
+ * @returns uuid
+ */
+export function uuid(): string {
+    let uuid = ''
+    for (let i = 1; i <= 36; i++) {
+        if (i === 9 || i === 14 || i === 19 || i === 24) {
+            uuid += '-'
+        } else if (i === 15) {
+            uuid += 4
+        } else if (i === 20) {
+            uuid += hexList[(Math.random() * 4) | 8]
+        } else {
+            uuid += hexList[(Math.random() * 16) | 0]
+        }
+    }
+    return uuid
+}
+
+/**
+ * 生成唯一标识
+ * @param prefix 前缀
+ * @returns 唯一标识
+ */
+export function shortUuid(prefix = ''): string {
+    const time = Date.now()
+    const random = Math.floor(Math.random() * 1000000000)
+    if (!window.unique) window.unique = 0
+    window.unique++
+    return prefix + '_' + random + window.unique + String(time)
+}