chore: prefer string templates over string concatenation

src/internet.ts

@@ -278,35 +278,44 @@ export class Internet {
   }
 
   /**
-   * Generates a random css hex color code.
+   * Calculates aesthetically pleasing color from a given base.
    *
-   * @param baseRed255 The optional base red. Used for aesthetically pleasing color palettes. Supports values between `0` and `255`. Defaults to `0`.
-   * @param baseGreen255 The optional base green. Used for aesthetically pleasing color palettes. Supports values between `0` and `255`. Defaults to `0`.
-   * @param baseBlue255 The optional base blue. Used for aesthetically pleasing color palettes. Supports values between `0` and `255`. Defaults to `0`.
+   * Based on:
+   * http://stackoverflow.com/questions/43044/algorithm-to-randomly-generate-an-aesthetically-pleasing-color-palette
+   *
+   * @param base Base color value in range form 0 to 255
+   * @private
+   */
+  private colorFromBase(base: number): string {
+    return Math.floor((this.faker.datatype.number(256) + base) / 2)
+      .toString(16)
+      .padStart(2, '0');
+  }
+
+  /**
+   * Generates a random css hex color code in aesthetically pleasing color palette.
+   *
+   * Based on
+   * http://stackoverflow.com/questions/43044/algorithm-to-randomly-generate-an-aesthetically-pleasing-color-palette
+   *
+   * @param redBase The optional base red in range between `0` and `255`. Defaults to `0`.
+   * @param greenBase The optional base green in range between `0` and `255`. Defaults to `0`.
+   * @param blueBase The optional base blue in range between `0` and `255`. Defaults to `0`.
    *
    * @example
    * faker.internet.color() // '#30686e'
    * faker.internet.color(100, 100, 100) // '#4e5f8b'
    */
   color(
-    baseRed255: number = 0,
-    baseGreen255: number = 0,
-    baseBlue255: number = 0
+    redBase: number = 0,
+    greenBase: number = 0,
+    blueBase: number = 0
   ): string {
-    // based on awesome response : http://stackoverflow.com/questions/43044/algorithm-to-randomly-generate-an-aesthetically-pleasing-color-palette
-    const red = Math.floor((this.faker.datatype.number(256) + baseRed255) / 2);
-    const green = Math.floor(
-      (this.faker.datatype.number(256) + baseGreen255) / 2
-    );
-    const blue = Math.floor(
-      (this.faker.datatype.number(256) + baseBlue255) / 2
-    );
-    const redStr = red.toString(16);
-    const greenStr = green.toString(16);
-    const blueStr = blue.toString(16);
-    return `#${redStr.length === 1 ? '0' : ''}${redStr}${
-      greenStr.length === 1 ? '0' : ''
-    }${greenStr}${blueStr.length === 1 ? '0' : ''}${blueStr}`;
+    const red = this.colorFromBase(redBase);
+    const green = this.colorFromBase(greenBase);
+    const blue = this.colorFromBase(blueBase);
+
+    return `#${red}${green}${blue}`;
   }
 
   /**