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Lodash _.endsWith

Overview

The lodash _.endsWith method is a JavaScript utility library that is used to check if a given string ends with a specified substring or character. This method is a part of the popular lodash library that provides a wide range of utility functions to make coding in JavaScript easier and more efficient.

The syntax for using the _.endsWith method in lodash is as follows:

_.endsWith(string, target, [position=string.length])

The first argument of this method is the string that needs to be checked for a specified ending, while the second argument is the target string or character that is being searched. The optional third argument, position, allows you to specify the position within the string to start checking the ending from.

The _.endsWith method returns a boolean value true if the given string ends with the specified target string or character, and false otherwise.

Here are a few examples of using the _.endsWith method:

_.endsWith('apple', 'le');
// Output: true

_.endsWith('banana', 'a', 4);
// Output: true

_.endsWith('cherry', 'h', 3);
// Output: false 

_.endsWith('grape', 'p', -2);
// Output: true

In the first example, the _.endsWith method checks if the string 'apple' ends with the substring 'le', which is true.

In the second example, the _.endsWith method checks if the string 'banana' ends with the character 'a', starting from the fourth position of the string (i.e., 'n'). Since the character 'a' appears before the fourth position, the method returns true.

In the third example, the _.endsWith method checks if the string 'cherry' ends with the character 'h' starting from the third position of the string (i.e., 'r'). Since the character 'h' does not appear before the specified position, the method returns false.

In the fourth example, we use a negative position value (-2) to specify the number of characters from the end of the string where the search for the target should begin. Since the last character of the string 'grape' is 'e', the _.endsWith method returns true for the target character 'p'.

In conclusion, the lodash _.endsWith method is a simple but effective tool for checking the end of a string. By providing flexible options for specifying the search position, this method can be used to perform complex string comparisons and manipulations efficiently.