update

src/utils/IOSize.ts

@@ -1,3 +1,5 @@
+import Text from "./Text";
+
 export enum Unit {
 
 	/** B */
@@ -60,7 +62,10 @@ export default class IOSize {
 	 * @param stopUnit 停止单位
 	 * @return
 	 */
-	public static format(size: number, fixed = 2, stopUnit?: Unit): string {
+	public static format(size?: number, fixed = 2, stopUnit?: Unit): string {
+		if (!size) {
+			return "";
+		}
 		const units = Object.keys(Unit);
 		if (0 < size) {
 			for (let i = 0; i < units.length; i++, size /= 1024) {
@@ -93,7 +98,7 @@ export default class IOSize {
 	 * @throws Error 格式无效
 	 */
 	public static parse(sizeStr: string): number {
-		if (!sizeStr || sizeStr.trim() === "") {
+		if (sizeStr.trim() === "") {
 			throw new Error("not found sizeStr");
 		}
 		// 正则匹配：可选符号 + 数字（含小数点）+ 可选空格 + 单位
@@ -160,13 +165,23 @@ export default class IOSize {
 	/**
 	 * 转换值到字节量
 	 *
-	 * @param value 值
+	 * @param val 值
 	 * @param unit  单位
 	 * @return 字节量
 	 */
-	private static toBytes(value: number, unit: Unit): number {
+	private static toBytes(val: number | undefined, unit: Unit): number {
+		if (!val) {
+			return 0;
+		}
 		const units = Object.values(Unit);
 		const ordinal = units.indexOf(unit);
-		return Math.round(value * Math.pow(1024, ordinal));
+		return Math.round(val * Math.pow(1024, ordinal));
+	}
+
+	public static speed(val?: number) {
+		if (!val) {
+			return "";
+		}
+		return Text.unit(IOSize.format(val, 2), " / s");
 	}
 }

src/utils/Text.ts

@@ -1,6 +1,6 @@
 import IOSize from "./IOSize";
 
-export default class TextFormat {
+export default class Text {
 
 	public static keyValue(obj: object, assign: string, split: string): string {
 		let result = "";
@@ -40,15 +40,18 @@ export default class TextFormat {
 			if (Number.isNaN(val)) {
 				return "";
 			}
-			return val.toFixed(fixed) + unit;
+			val = val.toFixed(fixed);
 		}
-		return val.trim() + unit;
+		return `${val.trim()} ${unit}`;
 	};
 
-	public static speed(val?: number) {
-		if (!val) {
-			return "";
+	public static display(val: string | number | null | undefined) {
+		if (typeof val === "string") {
+			return val.trim() || "";
 		}
-		return this.unit(IOSize.format(val, 2), " / s");
+		if (typeof val === "number" && Number.isFinite(val)) {
+			return val.toString();
+		}
+		return "";
 	}
 }

src/utils/index.ts

@@ -7,7 +7,7 @@ export { default as Prismjs } from "./Prismjs";
 export { default as Resizer } from "./Resizer";
 export { default as Scroller } from "./Scroller";
 export { default as Storage } from "./Storage";
-export { default as Format } from "./TextFormat";
+export { default as Text } from "./Text";
 export { default as Time } from "./Time";
 export { default as Toolkit } from "./Toolkit";
 export { default as IconMapper } from "./IconMapper";