Joined September 2022
·
sandrahdes
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JavaScript iterate through object keys and values
over 1 year
ago
When retrieving several key-value pairs from an object in JavaScript, you might need to cycle across the object. In this post, we'll examine four alternative JavaScript methods for looping through object attributes.
The for...in loop was the only method for iterating over an object prior to ES6. In ES6, the Object.keys() method was added to make iterating through objects simpler. Two new methods, Object.entries() and Object.values, were later introduced to ES8 (). The most recent methods arrayize the object before iterating across the array using array looping techniques.
Let's start with the first approach!
When retrieving several key-value pairs from an object in JavaScript, you might need to cycle across the object. In this post, we'll examine four alternative JavaScript methods for looping through object attributes.
The for...in loop was the only method for iterating over an object prior to ES6. In ES6, the Object.keys() method was added to make iterating through objects simpler. Two new methods, Object.entries() and Object.values, were later introduced to ES8 (). The most recent methods arrayize the object before iterating across the array using array looping techniques.
Let's start with the first approach!