Question

How to convert a string to PascalCase using RegEx in Node.js

Answer 1

function getPascalCase(input) {
    if (!input.includes(" ")) {
        input = input.replace(/(?<=[a-z])(?=[A-Z])/g, " ");
    }
 
    const words = input.toLowerCase().split(/[\s_]+/);
    let result = "";
 
    for (let word of words) {
        if (word.length > 0) {
            result += word[0].toUpperCase() + word.slice(1);
        }
    }
 
    return result;
}
 
console.log(getPascalCase("get text file content"));
console.log(getPascalCase("get_text_file_content"));
console.log(getPascalCase("get______text_____file___content"));
console.log(getPascalCase("get______text file____  content"));
console.log(getPascalCase("GET TEXT FILE CONTENT"));
console.log(getPascalCase("get    text    file      content"));
console.log(getPascalCase("getTextFileContent"));
 
 
    
/*
run:
    
GetTextFileContent
GetTextFileContent
GetTextFileContent
GetTextFileContent
GetTextFileContent
GetTextFileContent
GetTextFileContent
   
*/

 

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