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es6 remove empty property from object

Object.entries(obj).reduce((a,[k,v]) => (v == null ? a : (a[k]=v, a)), {})
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javascript object remove empty properties

removeEmpty(obj: any): any {
    return Object.fromEntries(
      Object.entries(obj)
        .filter(([_, v]) => v != null)
        .map(([k, v]) => [k, v === Object(v) ? this.removeEmpty(v) : v])
    );
  }
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