Table of contents
1.
Introduction
2.
Why This Function is Used
3.
Syntax, Parameter and Return Value
3.1.
Syntax: 
3.2.
Parameters:
3.3.
Return Value: 
4.
Examples 
4.1.
Converting a Regular String to Camel Case:
4.2.
JavaScript
4.3.
Camel Casing a Hyphenated String:
4.4.
JavaScript
4.5.
Handling Strings with Punctuation and Spaces:
4.6.
JavaScript
4.7.
Camel Casing User Input:
4.8.
JavaScript
5.
Frequently Asked Questions
5.1.
How does _.camelCase() handle non-alphanumeric characters?
5.2.
Can _.camelCase() handle strings with multiple consecutive special characters?
5.3.
Is _.camelCase() suitable for all naming conventions?
6.
Conclusion
Last Updated: Mar 27, 2024
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Lodash _.camelCase() Method

Author Rinki Deka
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Introduction

In JavaScript and many other programming languages, the camel case naming convention is widely used, especially in variable and function names. Lodash's _.camelCase() method provides a quick and efficient way to convert strings to this format. 

Lodash _.camelCase() Method

This method is particularly useful for standardizing string formats, such as converting user input or file names to camel case, which is a common requirement in web development and data processing.

Why This Function is Used

The _.camelCase() function is used to convert a string to camel case notation, where the first word is in lowercase and each subsequent word begins with an uppercase letter, with no intervening spaces or punctuation. This is crucial in ensuring consistency in variable naming and making strings conform to the camel case style that is a standard in many programming contexts.

Syntax, Parameter and Return Value

Syntax: 

_.camelCase([string=''])

Parameters:

[string=''] (string): The string to convert.

Return Value: 

(string) - Returns the camel cased string.

Examples 

Converting a Regular String to Camel Case:

  • JavaScript

JavaScript

var _ = require('lodash');

var text = 'Hello world';

console.log(_.camelCase(text));
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Output

'helloWorld'


Demonstrates converting a space-separated string to camel case.

Camel Casing a Hyphenated String:

  • JavaScript

JavaScript

var fileName = 'my-awesome-file-name';

console.log(_.camelCase(fileName));
You can also try this code with Online Javascript Compiler
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Output: 

'myAwesomeFileName'


Shows converting a hyphen-separated string (common in file names) to camel case.

Handling Strings with Punctuation and Spaces:

  • JavaScript

JavaScript

var title = 'This is: A test_string!';

console.log(_.camelCase(title));
You can also try this code with Online Javascript Compiler
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Output:

 'thisIsATestString'


An example of camel casing a string with various punctuation marks and spaces.

Camel Casing User Input:

  • JavaScript

JavaScript

var userInput = 'USER email ADDRESS';

console.log(_.camelCase(userInput));
You can also try this code with Online Javascript Compiler
Run Code

Output:

 'userEmailAddress'


Demonstrates standardizing user input to camel case.

Frequently Asked Questions

How does _.camelCase() handle non-alphanumeric characters?

_.camelCase() removes non-alphanumeric characters and uses the remaining characters to form the camel case string.

Can _.camelCase() handle strings with multiple consecutive special characters?

Yes, _.camelCase() effectively ignores multiple consecutive special characters, treating them as a single separator.

Is _.camelCase() suitable for all naming conventions?

While _.camelCase() is ideal for converting strings to camel case, other naming conventions like snake case or kebab case require different methods or custom logic.

Conclusion

Lodash's _.camelCase() method is a straightforward and efficient way to convert strings of various formats to camel case notation. It's particularly useful for standardizing strings for variable naming, user input processing, and ensuring conformity with common programming style guidelines.

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