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Lodash _.isSafeInteger

Overview

The lodash _.isSafeInteger method is a utility function that checks whether a given value is a safe integer or not. A safe integer is an integer that can be represented accurately using JavaScript's number format, which uses 53 bits of precision. Values outside this range will experience rounding errors and other inaccuracies.

The _.isSafeInteger method takes one argument, which can be any value. It returns a boolean value indicating whether the given value is a safe integer or not.

To be considered a safe integer, the value must:

  • Be an integer (i.e. not a fractional or decimal value)
  • Be between -(2^53 - 1) and 2^53 - 1 (inclusive)

If the given value does not meet these criteria, _.isSafeInteger will return false. Otherwise, it will return true.

Some examples of safe integers include:

  • 0
  • 1
  • -100000
  • 9007199254740991

Some examples of values that are not safe integers include:

  • 0.5
  • 10000000000000001
  • Infinity
  • "123"

Overall, the lodash _.isSafeInteger method is a useful utility function for checking whether a given value is a safe integer or not. By using this method in your code, you can help prevent rounding errors and other inaccuracies that can occur when working with large numbers in JavaScript.