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Lodash _.floor

Overview

The lodash _.floor method is a utility function that is designed to provide an efficient way to round down a given number to a specified number of decimal places. This function takes two arguments; the first argument is the number that needs to be rounded down, while the second argument is the number of decimal places to which the number should be rounded down.

The _.floor method is part of the Lodash library, a collection of utility functions that simplify JavaScript programming. Lodash is designed to work on arrays, numbers, and objects. The library's functions are compatible with both Node.js and browser environments, and can be used with various module bundlers such as Webpack, Rollup or Parcel.

The _.floor method rounds down a given number to its nearest integer, or to a specified number of decimal places. If no decimal places are specified, the method rounds the number to its nearest integer. If the specified number of decimal places is negative, the method rounds the number to the left of the decimal point.

For example, _.floor(4.006) will return 4, and _.floor(0.046, 2) will return 0.04.

The _.floor method is useful when working with financial data, as it provides a means of rounding down currency values to the nearest specified number of decimal places.

This method is also efficient, as it avoids the use of the slower Math.floor() method which can be computationally expensive for large numbers of values.

In summary, the _.floor method is a useful utility function in the Lodash library that makes rounding down numbers to a specified number of decimal places easy and efficient.