Converting a JavaScript Map into an Array of Objects скачать в хорошем качестве

Converting a JavaScript Map into an Array of Objects

Learn how to effectively convert a JavaScript map of key-value pairs into an array of objects, maintaining the desired structure. --- This video is based on the question https://stackoverflow.com/q/77684220/ asked by the user 'Ash' ( https://stackoverflow.com/u/19323587/ ) and on the answer https://stackoverflow.com/a/77684244/ provided by the user 'Jaromanda X' ( https://stackoverflow.com/u/5053002/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Converting a Javascript map into an array of objects Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Converting a JavaScript Map into an Array of Objects: A Complete Guide When working with JavaScript, you may find yourself needing to convert a Map of key-value pairs into an array of objects. This can be particularly challenging if you want to maintain a specific structure for each object in the resulting array. In this post, we will go through a detailed explanation of how to achieve this conversion seamlessly. Understanding the Problem Consider the following scenario: You have a Map containing key-value pairs, and you need to convert this into an array of objects. The desired format for the objects in the array is that each object should have a single property where the key corresponds to the original key from the Map and the value is the associated value from the Map. Example Setup Suppose you have the following Map: [[See Video to Reveal this Text or Code Snippet]] You would like your output to resemble: [[See Video to Reveal this Text or Code Snippet]] However, using the following code results in an incorrect format: [[See Video to Reveal this Text or Code Snippet]] This produces: [[See Video to Reveal this Text or Code Snippet]] As you can see, this output does not adhere to the required format. The Solution To obtain the correct structure, you can use the following modified code snippet: [[See Video to Reveal this Text or Code Snippet]] This method utilizes computed property names to set the property names dynamically based on the key variable. Here’s a breakdown of the steps involved: Step-by-Step Breakdown Creating the Arrays: Begin by initializing two arrays, one to hold the desired object structure (e.g., paramArray1) and another to hold the output from the Map (e.g., paramArray2). Setting Up the Map: Populate the Map with key-value pairs using the set method. Iterating Over the Map: Use a for...of loop to iterate over the Map entries. For each entry, push a newly created object into paramArray2, using computed property names to dynamically set the object's key. Complete Code Example Here's the fully integrated code showcasing this solution: [[See Video to Reveal this Text or Code Snippet]] Conclusion By using the computed property name feature in JavaScript, you can successfully convert a Map of key-value pairs into an array of objects in the desired format. This approach gives you the flexibility needed for future applications involving dynamic object properties. Now that you have this knowledge, you can handle similar tasks with confidence!