null check recovery code
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@ -33,6 +33,10 @@
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};
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function formatString(s) {
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function formatString(s) {
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if (!s) {
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return null;
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}
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return s.replace(/(.{4})/g, '$1 ').trim().toUpperCase();
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return s.replace(/(.{4})/g, '$1 ').trim().toUpperCase();
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}
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}
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