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How to Get Object Keys with a Common Value in JavaScript
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Learn how to efficiently find object keys in JavaScript that have a specific value, with clear examples and step-by-step explanations.
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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: How to get object keys which have common value in javascript?
If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
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How to Get Object Keys with a Common Value in JavaScript
If you’re a JavaScript developer, you might occasionally need to retrieve keys from an object based on their values. For instance, let's say you have an object that represents issues, with the values signaling whether each issue is present or not. You may want to extract the keys corresponding to a specific value, like “Yes.” In this guide, we’ll show you how to achieve this in a clear and effective way.
The Problem: Extracting Keys by Value
Consider the following object structure that holds various issues:
[[See Video to Reveal this Text or Code Snippet]]
In this example, you want to find all keys that have the value ‘Yes’. Your expected output would look like this: window_expired, no_display.
You might have tried a function like this:
[[See Video to Reveal this Text or Code Snippet]]
While this is a good start, it only retrieves the first key that matches the specified value. To solve your problem entirely, we need to modify our approach.
The Solution: Using the filter Method
To get all keys that correspond to a specific value, the filter method can be your best friend. Here’s how you can do it:
Step-by-Step Breakdown
Filter the Keys: Use the filter method to iterate through this array and select only the keys that match the specified value.
The Complete Code
With that in mind, here’s the concise solution:
[[See Video to Reveal this Text or Code Snippet]]
Explanation
filter(key = issues[key] === 'Yes'): The filter method checks each key to see if its corresponding value is 'Yes', returning a new array with only those keys.
Result
When executed, the above code will log an array containing all the keys with the value 'Yes':
[[See Video to Reveal this Text or Code Snippet]]
Conclusion
So next time you need to find keys that share a common value, remember this method for a seamless solution.
Have a good day and happy coding!
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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: How to get object keys which have common value in javascript?
If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Get Object Keys with a Common Value in JavaScript
If you’re a JavaScript developer, you might occasionally need to retrieve keys from an object based on their values. For instance, let's say you have an object that represents issues, with the values signaling whether each issue is present or not. You may want to extract the keys corresponding to a specific value, like “Yes.” In this guide, we’ll show you how to achieve this in a clear and effective way.
The Problem: Extracting Keys by Value
Consider the following object structure that holds various issues:
[[See Video to Reveal this Text or Code Snippet]]
In this example, you want to find all keys that have the value ‘Yes’. Your expected output would look like this: window_expired, no_display.
You might have tried a function like this:
[[See Video to Reveal this Text or Code Snippet]]
While this is a good start, it only retrieves the first key that matches the specified value. To solve your problem entirely, we need to modify our approach.
The Solution: Using the filter Method
To get all keys that correspond to a specific value, the filter method can be your best friend. Here’s how you can do it:
Step-by-Step Breakdown
Filter the Keys: Use the filter method to iterate through this array and select only the keys that match the specified value.
The Complete Code
With that in mind, here’s the concise solution:
[[See Video to Reveal this Text or Code Snippet]]
Explanation
filter(key = issues[key] === 'Yes'): The filter method checks each key to see if its corresponding value is 'Yes', returning a new array with only those keys.
Result
When executed, the above code will log an array containing all the keys with the value 'Yes':
[[See Video to Reveal this Text or Code Snippet]]
Conclusion
So next time you need to find keys that share a common value, remember this method for a seamless solution.
Have a good day and happy coding!