<ul><li>JavaScript utility functions can significantly enhance development efficiency by simplifying tasks and improving code readability.</li><li>Some essential utility functions include deep cloning objects, formatting numbers, capitalizing letters, flattening arrays, debouncing functions, generating random colors, checking for empty objects, converting query strings, copying text to the clipboard, and generating UUIDs.</li><li>These functions have practical examples and can be grouped into a reusable utility module for easier access and maintenance in projects.</li><li>Using established utility functions like these can make code cleaner, safer, and more maintainable, providing a productivity boost to developers.</li></ul>

10 Useful JavaScript Utility Functions Every Developer Should Know

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