Add StringCollection to make it easier to work with strings

src/utils/string.collection.ts

@@ -0,0 +1,51 @@
+export interface StringType {
+	[key: string]: string
+};
+
+export class StringCollection {
+
+	public values: StringType = {};
+
+	public static fromObject(values: StringType): StringCollection {
+		const collection = new StringCollection();
+		Object.keys(values).forEach(key => collection.add(key, values[key]));
+		return collection;
+	}
+
+	public static fromArray(keys: string[]): StringCollection {
+		const collection = new StringCollection();
+		keys.forEach(key => collection.add(key));
+		return collection;
+	}
+
+	public add(keys: string | string[], val: string = ''): StringCollection {
+		if (!Array.isArray(keys)) {
+			keys = [keys];
+		}
+		keys.forEach(key => this.values[key] = val);
+		return this;
+	}
+
+	public remove(key: string): StringCollection {
+		delete this.values[key];
+		return this;
+	}
+
+	public merge(collection: StringCollection): StringCollection {
+		this.values = Object.assign({}, this.values, collection.values);
+		return this;
+	}
+
+	public get(key: string): string {
+		return this.values[key];
+	}
+
+	public keys(): string[] {
+		return Object.keys(this.values);
+	}
+
+	public count(): number {
+		return Object.keys(this.values).length;
+	}
+
+}