JavaScript How to regex everything between colon and space? regex everything between two characters,regex everything between two strings,

I have this string

product_id:WDC WD2500YS-18S revision:6C07 size(GB):232 state: ONLINE

and I need convert to anything else, like json:

{
  "product_id": "WDC WD2500YS-18S",
  "revision": "6C07",
  "size(GB)": "232",
  "state": "ONLINE"
}

I tried this /([^:]+)/g, but is not working because I need that the WD2500YS-18S be togetter with WDC WD2500YS-18S.

Answer:1

You must use the fact that the key doesn't contains spaces and check what follows with a lookahead.

/([^\s:]+):\s*([^:]+?)(?=\s+[^\s:]+:|\s*$)/g

Answer:2

This solution doesn't rely on lookaheads or lookbehinds, and utilizes the browser's built-in json parser to verify that the output is valid. It leverages the fact that the keys do not contain spaces. So ([^ ]+): will find a key. We just wrap the key and value with quotation marks and let the built-in json parser do the rest.

var input = 'product_id:WDC WD2500YS-18S revision:6C07 size(GB):232 state: ONLINE';
console.log(JSON.parse(
  '{' +
  input.replace(/(^| )([^ ]+):/g,'","$2":"').substring(2) +
  '"}'
));

outputs:

{
product_id: "WDC WD2500YS-18S",
revision: "6C07",
size(GB): "232",
state: " ONLINE"
}

Answer:3

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