Data Processing

Create an object from keys and values using lodash _.zipObject

Math & Numbers

Calculate discounted prices, savings, and final price after applying percentage or fixed amount discounts

Validation

Validate US Employer Identification Numbers

Validation

Validate International Bank Account Numbers (IBAN)

Data Processing

Find common values across multiple arrays using lodash _.intersection

Data Processing

Join array items into a single string with a custom separator

Math & Numbers

Calculate profit margin, markup, and selling price based on cost and desired margin percentage

Math & Numbers

Calculate markup, selling price, and profit based on cost and markup percentage

Data Processing

Get the item at a specific index using lodash _.nth

Data Processing

Remove items that match a predicate using lodash _.remove

Data Processing

Reverse an array using lodash _.reverse

Validation

Validate SWIFT/BIC bank identification codes