regex to remove all whitespaces except between brackets

How do i prevent preg_replace() altering the content of () in following JavaScript-Snippet:

myVar.replace(/\u00AD/g, '');

This is my PHP function (I am not sure, which part is responsible):

$output = preg_replace('/true/', '!0', $output);
$output = preg_replace('/(?:(?:\/\*(?:[^*]|(?:\*+[^*\/]))*\*+\/)|(?:(?<!\:|\\\)\/\/[^"\'].*))/', '', $output);
$output = preg_replace('/ = /', '= ', $output);
$output = preg_replace('/\s*\n\s*/', '', $output);
$output = preg_replace('/([^A-Za-z0-9\_\$])\h/', '$1', $output);
$output = preg_replace('/\s?([\(\[{])\s?/', '$1', $output);
$output = preg_replace('/\s([\)\]}])/', '$1', $output);
$output = preg_replace('/;\n/', ';', $output);
$output = preg_replace('/;}/', '}', $output);
$output = preg_replace('/}\n/', '}', $output);

Thanks in advance …

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