work

1-js/3-object-basics/7-array/2-create-array/solution.md

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+
+
+```js run
+let styles = ["Jazz", "Blues"];
+styles.push("Rock-n-Roll");
+styles[(styles.length + 1) / 2] = "Classics";
+alert( styles.shift() );
+styles.unshift("Rap", "Reggie");
+```
+

1-js/3-object-basics/7-array/2-create-array/task.md

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+importance: 5
+
+---
+
+# Array operations.
+
+Let's try 5 array operations.
+
+1. Create an array `styles` with items "Jazz" and "Blues".
+2. Append "Rock-n-Roll" to the end.
+3. Replace the value in the middle by "Classics". Your code for finding the middle value should work for any arrays with odd length.
+4. Strip off the first value of the array and show it.
+5. Prepend `Rap` and `Reggie` to the array.
+
+The array in the process:
+
+```js no-beautify
+Jazz, Blues
+Jazz, Bues, Rock-n-Roll
+Jazz, Classics, Rock-n-Roll
+Classics, Rock-n-Roll
+Rap, Reggie, Classics, Rock-n-Roll
+```
+