How to insert date inside json in html element
Question
I have json inside meta tag attribute:
<head>
<title>PLD Interaction pattern</title>
<meta data-pageObject='{
"page": {
"pageInfo": {
"pageID": "12345",
"pageName": "smartphones:samsung-galaxy-s-5",
"prevPageName": "phones",
"version": "1.15",
"language": "en-US",
"geoRegion": "US",
"responsiveState": "desktop",
"timeStamp": "+new Date()+", //Insert date here
"currencyCode": "USD"
}
}
}' id="metaJson">
</head>
I need to insert date into timestamp key. I tried to escape using ' but its showing syntax error. Is there a way to escape it and insert date?
1 answers
solution1
2 2016-03-24 18:29:38
You will have to use JavaScript to get the string, convert from JSON to an object, add the date and later stringify the object into the data-attribute again. You can't execute JavaScript in a data-attribute, data-attributes only stores arbitrary data.
Don't confuse JSON with JavaScript. JSON is language independent and represents objects, is not a programming language.
Run the code and inspect the iframe to check the added date.
var metaJson = document.getElementsByTagName('meta').item(property='metaJson'); var data = metaJson.getAttribute('data-pageObject'); data = JSON.parse(data); data.date = new Date(); metaJson.setAttribute('data-pageObject', JSON.stringify(data));
<meta name="metaJson" data-pageObject='{ "page": { "pageInfo": { "pageID": "12345", "pageName": "smartphones:samsung-galaxy-s-5", "prevPageName": "phones", "version": "1.15", "language": "en-US", "geoRegion": "US", "responsiveState": "desktop", "currencyCode": "USD" } } }' id="metaJson">
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