I have a JavaScript array like: [["$6"], ["$12"], ["$25"], ["$25"], ["$18"], ["$22"], ["$10"]] How would I go about merging the separate inner arrays into one like: ["$6", "$12", "$25", ...]

You can achieve this by using the Array.prototype.flat() method to flatten the nested arrays, followed by the Array.prototype.map() method to transform the values to the desired format. Here's how you can do it:

javascript

const nestedArray = [["$6"], ["$12"], ["$25"], ["$25"], ["$18"], ["$22"], ["$10"]];

const mergedArray = nestedArray.flat().map(item => item[0]);

console.log(mergedArray);  // Output: ["$6", "$12", "$25", "$25", "$18", "$22", "$10"]

In this example, nestedArray.flat() flattens the nested arrays into a single array, and then .map(item => item[0]) maps each sub-array to its first element (which is the desired format you're looking for).

Keep in mind that the flat() method might not be supported in older environments or browsers. If you encounter compatibility issues, you can use alternatives like using a loop to manually flatten the array or using a library like Lodash that provides cross-browser utility functions.