How do I check if a JSON file is empty?

path. getsize(path) to find file size of a file. You do not have to read file at all. If JSON file is just 2 bytes, “[]” or “{}”, it is an empty JSON object.

How check JSON empty or not in Python?

The complete example is as follows,

  1. with open(file_name, ‘r’) as read_obj: # read first character.
  2. if os. stat(file_path).st_size == 0: print(‘File is empty’)
  3. if os.path. getsize(file_path) == 0: print(‘File is empty’)

Can a JSON object be empty?

The JSON empty concept applies for arrays and objects as shown below. In the case of address, an empty address data object is created. … Hence, no action is taken on the data object for those two properties.

How do you check the JSON object is empty or not in Java?

json so this might not be the optimum way. An empty object has no member so therefore method keys() should return iterator with length zero. getJSONObject(“problemkey”). keys() – check the length of that.

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How can I tell if a text file is empty?

import os check_file = os. path. getsize(“textfile. txt”) if(check_file == 0): print(“The file is empty.”) else: print(“The file is not empty.”)

How do I check if a string is empty in Python?

To check an empty string in Python, use the len() function, and if it returns 0, that means the string is empty; otherwise, it is not. So, if the string has something, it will count as a non-empty string; otherwise, it is an empty string.

How do you check if a JSON object is null?

To check null in JavaScript, use triple equals operator(===) or Object is() method. If you want to use method then you two arguments. 1) Pass your variable value with a null value. 2) The null value itself.

How do you check if an object is empty or not?

keys(object) method: The required object could be passed to the Object. keys(object) method which will return the keys in the object. The length property is used to the result to check the number of keys. If the length property returns 0 keys, it means that the object is empty.

How do you check if JSON object is empty in react?

“how to check json object is empty or not in reactjs” Code Answer

  1. if (Object. keys(this. state. errors). length == 0) {
  2. this. props. updateUser(user);
  3. this. props. navigation. goBack();

How check JSON object is empty or not in C#?

Using Object.

Object. keys will return an Array, which contains the property names of the object. If the length of the array is 0, then we know that the object is empty. This is the simplest way to check if an object is empty.

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How check JSON object is empty or not in jQuery?

if(d. DESCRIPTION == ‘null’){ console. log(“Its empty”);

How do you check if a JSON object is empty or not in node JS?

Example usage: if (isEmptyObject(query)) { // There are no queries. } else { // There is at least one query, // or at least the query object is not empty. } If using underscore or jQuery, you can use their isEmpty or isEmptyObject calls.

How check object is empty or not in PHP?

PHP empty() Function

The empty() function checks whether a variable is empty or not. This function returns false if the variable exists and is not empty, otherwise it returns true.

How check if array is empty C#?

if (myArray == null) System. Console. WriteLine(“array is not initialized”); else if (myArray. Length < 1) System.