How to get an key value pair from an object in angular

sample array:

  const obj = {
    "29": "DTE Queue",
    "30": "Services Reporting Sales",
    "31": "Services Reporting Ops",
    "41": "UPLOAD",
    "55": "Support Report"
  };

I'm getting input from user as 'ser'. Then output should be { "30": "Services Reporting Sales", "31": "Services Reporting Ops"}.But the output I'm getting is {"30": "Services Reporting Sales"}.

Method 1:

 getKeyByValue(obj:object, value) {
  const matchedEntry = Object.entries(obj).find(entry => 
  entry[1].toLowerCase().match(value.toLowerCase()));
  return matchedEntry &&(<any>Object).fromEntries([matchedEntry])
}

Method2:

getKeyByValue(obj: Object, value) {
    try {
      return (<any>Object).fromEntries([
        Object.entries(obj).find(([key, val]) =>
          val.toLowerCase().startsWith(value.toLowerCase())
        ),
      ]);
    } catch (err) {
      console.log("Object not found");
      return {};
    }
  }

You're using find. find returns the first search result. If you want multiple results, you can use filter.

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const obj = {"29": "DTE Queue", "30": "Services Reporting Sales", "31": "Services Reporting Ops", "41": "UPLOAD", "55": "Support Report"};

function getObjectByValue(object, value) {
    return Object.fromEntries(Object.entries(object).filter(([key, val]) => val.toLowerCase().includes(value.toLowerCase())));
}

console.log(getObjectByValue(obj, 'ser'));
console.log(getObjectByValue(obj, 'sup2'));

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