{"id":23607,"date":"2022-11-27T06:28:22","date_gmt":"2022-11-27T00:58:22","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-need-help-to-update-the-values-in-an-object\/"},"modified":"2022-11-27T06:28:22","modified_gmt":"2022-11-27T00:58:22","slug":"solved-need-help-to-update-the-values-in-an-object","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-need-help-to-update-the-values-in-an-object\/","title":{"rendered":"[Solved] need help to update the values in an object"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-71904110\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"71904110\" data-parentid=\"71904012\" data-score=\"0\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>It looks like you&#8217;ve overcomplicated the problem. It can be as simple as<\/p>\n<\/p>\n<div class=\"snippet\" data-lang=\"js\" data-hide=\"false\" data-console=\"true\" data-babel=\"false\">\n<div class=\"snippet-code\">\n<pre class=\"snippet-code-js lang-js prettyprint-override\"><code>function updateObj(obj,keyName,val) {\n   obj[keyName] = val;\n   return obj;\n}\n\nconst bag = {\n    color: 'yellow',\n    hasMoney: false\n}\nconsole.log(updateObj(bag, 'color', 'Blue')); \/\/ =&gt; { color: 'Blue', hasMoney: false }\n\nconst house = {\n    sqFt: 1500,\n    isOccupied: true\n}\nconsole.log(updateObj(house, 'sqFt', 2000)); \/\/ =&gt; { sqFt: 2000, isOccupied: true }\n\nconst cat = { isFurry: false };\nconst propName=\"isFurry\";\n\ncat['propName'] = true;\nconsole.log(cat); \/\/ =&gt; { isFurry: false, propName: true }<\/code><\/pre>\n<\/div>\n<\/div>\n<p><code>updateObj<\/code> modifies the input object and sets a property. At the end it returns the reference to the input object. You can discard the return statement if you don&#8217;t need it<\/p>\n<\/p>\n<div class=\"snippet\" data-lang=\"js\" data-hide=\"false\" data-console=\"true\" data-babel=\"false\">\n<div class=\"snippet-code\">\n<pre class=\"snippet-code-js lang-js prettyprint-override\"><code>function updateObj(obj,keyName,val) {\n   obj[keyName] = val;\n}\n\nconst bag = {\n    color: 'yellow',\n    hasMoney: false\n}\nupdateObj(bag, 'color', 'Blue');\nconsole.log(bag); \/\/ =&gt; { color: 'Blue', hasMoney: false }\n\nconst house = {\n    sqFt: 1500,\n    isOccupied: true\n}\nupdateObj(house, 'sqFt', 2000);\nconsole.log(house); \/\/ =&gt; { sqFt: 2000, isOccupied: true }\n\nconst cat = { isFurry: false };\nconst propName=\"isFurry\";\n\ncat['propName'] = true;\nconsole.log(cat); \/\/ =&gt; { isFurry: false, propName: true }<\/code><\/pre>\n<\/div>\n<\/div>\n<p>Creating a shallow copy using the spread operator is even simpler<\/p>\n<\/p>\n<div class=\"snippet\" data-lang=\"js\" data-hide=\"false\" data-console=\"true\" data-babel=\"false\">\n<div class=\"snippet-code\">\n<pre class=\"snippet-code-js lang-js prettyprint-override\"><code>function updateObj(obj,keyName,val) {\n   return { ...obj, [keyName]: val };\n}\n\nconst bag = {\n    color: 'yellow',\n    hasMoney: false\n}\nconsole.log(updateObj(bag, 'color', 'Blue')); \/\/ =&gt; { color: 'Blue', hasMoney: false }\n\nconst house = {\n    sqFt: 1500,\n    isOccupied: true\n}\nconsole.log(updateObj(house, 'sqFt', 2000)); \/\/ =&gt; { sqFt: 2000, isOccupied: true }\n\nconst cat = { isFurry: false };\nconst propName=\"isFurry\";\n\ncat['propName'] = true;\nconsole.log(cat); \/\/ =&gt; { isFurry: false, propName: true }<\/code><\/pre>\n<\/div>\n<\/div>\n<p>but in that case the function name could be confusing, because the input object isn&#8217;t updated.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">2<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved need help to update the values in an object <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] It looks like you&#8217;ve overcomplicated the problem. It can be as simple as function updateObj(obj,keyName,val) { obj[keyName] = val; return obj; } const bag = { color: &#8216;yellow&#8217;, hasMoney: false } console.log(updateObj(bag, &#8216;color&#8217;, &#8216;Blue&#8217;)); \/\/ =&gt; { color: &#8216;Blue&#8217;, hasMoney: false } const house = { sqFt: 1500, isOccupied: true } console.log(updateObj(house, &#8216;sqFt&#8217;, 2000)); &#8230; <a title=\"[Solved] need help to update the values in an object\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-need-help-to-update-the-values-in-an-object\/\" aria-label=\"More on [Solved] need help to update the values in an object\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[333,1948],"class_list":["post-23607","post","type-post","status-publish","format-standard","hentry","category-solved","tag-javascript","tag-javascript-objects"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] need help to update the values in an object - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-need-help-to-update-the-values-in-an-object\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] need help to update the values in an object - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] It looks like you&#8217;ve overcomplicated the problem. It can be as simple as function updateObj(obj,keyName,val) { obj[keyName] = val; return obj; } const bag = { color: &#039;yellow&#039;, hasMoney: false } console.log(updateObj(bag, &#039;color&#039;, &#039;Blue&#039;)); \/\/ =&gt; { color: &#039;Blue&#039;, hasMoney: false } const house = { sqFt: 1500, isOccupied: true } console.log(updateObj(house, &#039;sqFt&#039;, 2000)); ... 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It can be as simple as function updateObj(obj,keyName,val) { obj[keyName] = val; return obj; } const bag = { color: 'yellow', hasMoney: false } console.log(updateObj(bag, 'color', 'Blue')); \/\/ =&gt; { color: 'Blue', hasMoney: false } const house = { sqFt: 1500, isOccupied: true } console.log(updateObj(house, 'sqFt', 2000)); ... 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