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Convert string to camel case in JavaScript

How to convert string to camel case in JavaScript?
function toCamelCase(str){
    return str.toLowerCase().replace(/[^a-zA-Z0-9]+(.)/g, (m, chr) => chr.toUpperCase());

console.log(toCamelCase('The name field id is name-field_id')); //theNameFieldIdIsNameFieldId

The camel case (camelCase) means writing phrases without spaces or punctuation, indicating the separation of words with a single capitalized letter and the first letter is lower case. To convert a string to a camel case in JavaScript you can use the replace method on the string and use regular expressions and callback functions to generate the right output.

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