{"id":201823,"date":"2025-05-19T09:47:46","date_gmt":"2025-05-19T09:47:46","guid":{"rendered":"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/"},"modified":"2025-05-19T09:47:46","modified_gmt":"2025-05-19T09:47:46","slug":"how-to-get-key-value-of-object-in-javascript","status":"publish","type":"post","link":"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/","title":{"rendered":"How to get key value of object in JavaScript?"},"content":{"rendered":"<p>To get the key value of an object in JavaScript, you can use the dot notation or square bracket notation. Here&#8217;s how you can do it:<\/p>\n<p>&#8220;`javascript<br \/>\nconst myObject = {<br \/>\n  key1: &#8216;value1&#8217;,<br \/>\n  key2: &#8216;value2&#8217;<br \/>\n};<\/p>\n<p>\/\/ Using dot notation<br \/>\nconst value1 = myObject.key1; \/\/ &#8216;value1&#8217;<\/p>\n<p>\/\/ Using square bracket notation<br \/>\nconst value2 = myObject[&#8216;key2&#8217;]; \/\/ &#8216;value2&#8217;<br \/>\n&#8220;`<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_62 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#What_are_objects_in_JavaScript\" title=\"What are objects in JavaScript?\">What are objects in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#How_can_you_create_an_object_in_JavaScript\" title=\"How can you create an object in JavaScript?\">How can you create an object in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#How_do_you_access_object_properties_in_JavaScript\" title=\"How do you access object properties in JavaScript?\">How do you access object properties in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#What_is_the_difference_between_dot_notation_and_square_bracket_notation_in_JavaScript\" title=\"What is the difference between dot notation and square bracket notation in JavaScript?\">What is the difference between dot notation and square bracket notation in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#Can_you_access_nested_properties_of_an_object_in_JavaScript\" title=\"Can you access nested properties of an object in JavaScript?\">Can you access nested properties of an object in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#How_do_you_check_if_an_object_has_a_specific_key_in_JavaScript\" title=\"How do you check if an object has a specific key in JavaScript?\">How do you check if an object has a specific key in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#How_can_you_get_all_keys_of_an_object_in_JavaScript\" title=\"How can you get all keys of an object in JavaScript?\">How can you get all keys of an object in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#How_can_you_get_all_values_of_an_object_in_JavaScript\" title=\"How can you get all values of an object in JavaScript?\">How can you get all values of an object in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#Can_you_iterate_over_the_key-value_pairs_of_an_object_in_JavaScript\" title=\"Can you iterate over the key-value pairs of an object in JavaScript?\">Can you iterate over the key-value pairs of an object in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#How_do_you_remove_a_key-value_pair_from_an_object_in_JavaScript\" title=\"How do you remove a key-value pair from an object in JavaScript?\">How do you remove a key-value pair from an object in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#How_do_you_update_the_value_of_a_key_in_an_object_in_JavaScript\" title=\"How do you update the value of a key in an object in JavaScript?\">How do you update the value of a key in an object in JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#Can_you_create_objects_with_non-string_keys_in_JavaScript\" title=\"Can you create objects with non-string keys in JavaScript?\">Can you create objects with non-string keys in JavaScript?<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"What_are_objects_in_JavaScript\"><\/span>What are objects in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nObjects in JavaScript are collections of key-value pairs, where the keys are strings and the values can be of any data type.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_can_you_create_an_object_in_JavaScript\"><\/span>How can you create an object in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can create an object in JavaScript using object literal syntax, constructor functions, or the `Object.create()` method.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_do_you_access_object_properties_in_JavaScript\"><\/span>How do you access object properties in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can access object properties in JavaScript using dot notation or square bracket notation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_dot_notation_and_square_bracket_notation_in_JavaScript\"><\/span>What is the difference between dot notation and square bracket notation in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nDot notation is simpler and more concise, while square bracket notation allows you to access properties using variables or dynamic keys.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_you_access_nested_properties_of_an_object_in_JavaScript\"><\/span>Can you access nested properties of an object in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can access nested properties of an object by chaining multiple dot or square bracket notation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_do_you_check_if_an_object_has_a_specific_key_in_JavaScript\"><\/span>How do you check if an object has a specific key in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can use the `hasOwnProperty()` method or the `in` operator to check if an object has a specific key.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_can_you_get_all_keys_of_an_object_in_JavaScript\"><\/span>How can you get all keys of an object in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can use the `Object.keys()` method to get an array of all keys of an object.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_can_you_get_all_values_of_an_object_in_JavaScript\"><\/span>How can you get all values of an object in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can use the `Object.values()` method to get an array of all values of an object.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_you_iterate_over_the_key-value_pairs_of_an_object_in_JavaScript\"><\/span>Can you iterate over the key-value pairs of an object in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can use the `for&#8230;in` loop or the `Object.entries()` method to iterate over the key-value pairs of an object.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_do_you_remove_a_key-value_pair_from_an_object_in_JavaScript\"><\/span>How do you remove a key-value pair from an object in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can use the `delete` keyword or the `Object.assign()` method to remove a key-value pair from an object.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_do_you_update_the_value_of_a_key_in_an_object_in_JavaScript\"><\/span>How do you update the value of a key in an object in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can simply reassign the value to the key using either dot notation or square bracket notation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_you_create_objects_with_non-string_keys_in_JavaScript\"><\/span>Can you create objects with non-string keys in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can create objects with non-string keys by using square bracket notation instead of dot notation.<\/p>\n<p>In summary, getting the key value of an object in JavaScript is a common task that can be achieved using dot notation or square bracket notation. By understanding how to access, manipulate, and iterate over object properties, you can effectively work with objects in JavaScript.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To get the key value of an object in JavaScript, you can use the dot notation or square bracket notation. Here&#8217;s how you can do it: &#8220;`javascript const myObject = { key1: &#8216;value1&#8217;, key2: &#8216;value2&#8217; }; \/\/ Using dot notation const value1 = myObject.key1; \/\/ &#8216;value1&#8217; \/\/ Using square bracket notation const value2 = myObject[&#8216;key2&#8217;]; &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"How to get key value of object in JavaScript?\" class=\"read-more button\" href=\"https:\/\/namso-gen.co\/blog\/how-to-get-key-value-of-object-in-javascript\/#more-201823\">Read more<span class=\"screen-reader-text\">How to get key value of object in JavaScript?<\/span><\/a><\/p>\n","protected":false},"author":51,"featured_media":107420,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86279],"tags":[],"class_list":["post-201823","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-learn","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to get key value of object in JavaScript?<\/title>\n<meta name=\"description\" content=\"To get the key value of an object in JavaScript, you can use the dot notation or square bracket notation. 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