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Regex to wrap JSON property value inside another string

{ "url": "products/Sensors.html",
  "thumbnailUrl":"/images/icons/no_image.png",
  "translatedTitle": "sensors",
  ...
},
...

I would like to additional value "localhost:8080" to the property "thumbnailUrl" which ends with .png|jpg etc

replaced value should be as :

{ "url": "products/Sensors.html",
  "thumbnailUrl":"localhost:8080/images/icons/no_image.png",
  "translatedTitle": "sensors",
  ...
}
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by (71.8m points)

Why dont you just do Myobj.thumbnailUrl = "localhost:8080" + myobj.thumbnailUrl;

Otherwise Mynewstring = myexistingstring.replace(/(thumbnailUrl":")/,'$1'+'localhost:8080');


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