how to use the ismatchwith function from lodash in javascript

The _.ismatchWith function from lodash library in JavaScript is used to compare the values of two objects to determine if they are equivalent. It takes three arguments - the object to compare, the source object with which to compare it, and a customizer function that determines how the comparison is performed.

Here is an example usage of the _.ismatchWith function:

index.tsx
const _ = require('lodash');

const object = { 'a': 1 };
const other = { 'a': 1 };

function customizer(objValue, othValue) {
  if (isObject(objValue) && isObject(othValue)) {
    return _.isEqual(objValue, othValue);
  }
}

_.isMatchWith(object, other, customizer);
// => true
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In this example, the _.isMatchWith function determines that object and other have equivalent values for the property a, and therefore returns true. The customizer function is used to perform the comparison in this case.

The customizer function takes two arguments, objValue and othValue. These arguments represent the values being compared at a given level of the object hierarchy. If both of these values are objects, the function performs a deep comparison using the _.isEqual function provided by lodash. If the values are not objects, the comparison is performed directly.

Note that the isObject function is used to determine if a given value is an object in this example. This helper function is not provided by lodash, but can be easily defined as follows:

index.tsx
function isObject(value) {
  const type = typeof value;
  return value != null && (type == 'object' || type == 'function');
}
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This code defines a function that returns true if the given value is an object or a function, and false otherwise.