{"id":30418,"date":"2023-01-14T21:00:38","date_gmt":"2023-01-14T15:30:38","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-adding-data-dynamically-from-one-json-object-to-another\/"},"modified":"2023-01-14T21:00:38","modified_gmt":"2023-01-14T15:30:38","slug":"solved-adding-data-dynamically-from-one-json-object-to-another","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-adding-data-dynamically-from-one-json-object-to-another\/","title":{"rendered":"[Solved] Adding data dynamically from one json object to another"},"content":{"rendered":"

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You’re pretty much going to need a server-side process if you want to save your changes.<\/p>\n

You can load the JSON via ajax<\/code>:<\/p>\n

$.ajax({\n    url: \"\/path\/to\/friends.json\",\n    dataType: \"json\",\n    success: function(data) {\n        \/\/ Here, `data` will be the object resulting from deserializing the JSON\n        \/\/ Store `data` somewhere useful, perhaps you might have a `friends`\n        \/\/ variable declared somewhere; if so:\n        friends = data;\n    },\n    error: function() {\n       \/\/ Handle the error\n    }\n});\n<\/code><\/pre>\n
To add to the deserialized object, you just modify it in memory:<\/p>\n
friends.people.push({\n    id: String(friends.people.length + 1),\n    name: \"John\",\n    img: \"img\/john.jpg\"\n});\n<\/code><\/pre>\n
Of course, those values will probably come from input fields or something, e.g.:<\/p>\n
function addPerson() {\n    friends.people.push({\n        id: String(friends.people.length + 1),\n        name: $(\"#nameField\").val(),\n        img: $(\"#imgField\").val()\n    });\n}\n<\/code><\/pre>\n
Now you have an in-memory copy of your data. To store<\/em> it somewhere, you have to have a server-side process you can post it to. You’d probably serialize it before posting, e.g., via JSON.stringify<\/code> or similar. If your browser doesn’t have JSON.stringify<\/code> natively (most modern ones do, some older ones don’t), you can use Crockford’s<\/a>.<\/p>\n
Or if this is just for your own use, you could display the stringified result in a text field and the use copy-and-paste to paste it into friends.json<\/code> in a text editor.<\/p>\n
Here’s a complete example, which shows the JSON in a text area: Live copy<\/a> | source<\/a><\/p>\n
<!DOCTYPE html>\n<html>\n<head>\n<meta charset=utf-8 \/>\n<title>Test Page<\/title>\n<style>\n  body {\n    font-family: sans-serif;\n  }\n<\/style>\n<\/head>\n<body>\n  <label>Name:\n    <input type=\"text\" id=\"nameField\">\n  <\/label>\n  <br><label>Img:\n    <input type=\"text\" id=\"imgField\">\n  <\/label>\n  <br><input type=\"button\" id=\"btnAdd\" value=\"Add\" disabled>\n  <input type=\"button\" id=\"btnShow\" value=\"Show JSON\" disabled>\n  <br><div id=\"msg\">&nbsp;<\/div>\n  <hr>\n  <textarea id=\"showField\" rows=\"10\" cols=\"60\"><\/textarea>\n<script src=\"http:\/\/ajax.googleapis.com\/ajax\/libs\/jquery\/1\/jquery.min.js\"><\/script>\n<script>\n\/\/ Note that all of our script tags are at the end of the\n\/\/ document. This lets the page load as quickly as possible\n\/\/ and means we don't have to worry about whether the elements\n\/\/ have been created yet (they have, because the scripts are\n\/\/ below them).\n\n\/\/ Put all of our code inside a function so we don't\n\/\/ create globals\n(function($) {\n    if (typeof JSON === \"undefined\") {\n        \/\/ Load Crockford's json2.js\n        \/\/ NOTE: You'd want to use your own copy, not a hotlink\n        \/\/ to his github like this.\n        var scr = document.createElement('script');\n        scr.src = \"https:\/\/raw.github.com\/douglascrockford\/JSON-js\/master\/json2.js\";\n        document.documentElement.appendChild(scr);\n    }\n\n    var friends; \/\/ Where our deserialized friends.json will go\n\n    \/\/ Focus the first field\n    $(\"#nameField\").focus();\n\n    \/\/ Load the JSON\n    $.ajax({\n        url: \"http:\/\/jsbin.com\/ojexuz\",\n        dataType: \"json\",\n        success: function(data) {\n            \/\/ Here, `data` will be the object resulting from deserializing the JSON\n            \/\/ Store `data` somewhere useful, perhaps you might have a `friends`\n            \/\/ variable declared somewhere; if so:\n            friends = data;\n\n            \/\/ Enable our buttons now that we have data\n            $(\"input[type=\"button\"]\").prop(\"disabled\", \"\");\n        },\n        error: function() {\n            \/\/ Handle the error\n            alert(\"Error loading friends.json\");\n        }\n    });\n\n    \/\/ Handle clicks on the \"Add\" button\n    $(\"#btnAdd\").click(function() {\n        var nameField = $(\"#nameField\"),\n            imgField  = $(\"#imgField\"),\n            name      = $.trim(nameField.val()),\n            img       = $.trim(imgField.val());\n        if (!name || !img) {\n            alert(\"Please supply both name and image\");\n            return;\n        }\n        addPerson(name, img);\n        $(\"#msg\").text(\"Added '\" + name + \"'\");\n        nameField.focus();\n    });\n\n    \/\/ An \"add this person\" function\n    function addPerson(name, img) {\n        friends.people.push({\n            id:   String(friends.people.length + 1),\n            name: name,\n            img:  img\n        });\n    }\n\n    \/\/ Handle clicks on the \"Show\" button\n    $(\"#btnShow\").click(function() {\n        $(\"#showField\").val(JSON.stringify(friends));\n    });\n\n})(jQuery);\n<\/script>\n<\/body>\n<\/html>\n<\/code><\/pre>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            5<\/span> <\/p><\/div>\n<\/div>\n
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solved Adding data dynamically from one json object to another <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] You’re pretty much going to need a server-side process if you want to save your changes. You can load the JSON via ajax: $.ajax({ url: “\/path\/to\/friends.json”, dataType: “json”, success: function(data) { \/\/ Here, `data` will be the object resulting from deserializing the JSON \/\/ Store `data` somewhere useful, perhaps you might have a `friends` … 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":[2216,333,388,356],"class_list":["post-30418","post","type-post","status-publish","format-standard","hentry","category-solved","tag-dynamically-generated","tag-javascript","tag-jquery","tag-json"],"yoast_head":"\n[Solved] Adding data dynamically from one json object to another - 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-adding-data-dynamically-from-one-json-object-to-another\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Adding data dynamically from one json object to another - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You’re pretty much going to need a server-side process if you want to save your changes. You can load the JSON via ajax: $.ajax({ url: "\/path\/to\/friends.json", dataType: "json", success: function(data) { \/\/ Here, `data` will be the object resulting from deserializing the JSON \/\/ Store `data` somewhere useful, perhaps you might have a `friends` ... 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You can load the JSON via ajax: $.ajax({ url: \"\/path\/to\/friends.json\", dataType: \"json\", success: function(data) { \/\/ Here, `data` will be the object resulting from deserializing the JSON \/\/ Store `data` somewhere useful, perhaps you might have a `friends` ... 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