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toPascalCase javascript Code Snippet in 2022

stringregexpintermediate

Last Updated: 25 September 2022

Converts a string to pascal case.

  • Use String.prototype.match() to break the string into words using an appropriate regexp.
  • Use Array.prototype.map(), Array.prototype.slice(), Array.prototype.join(), String.prototype.toUpperCase() and String.prototype.toLowerCase() to combine them, capitalizing the first letter of each word and lowercasing the rest.
const toPascalCase = str => str .match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g) .map(x => x.charAt(0).toUpperCase() + x.slice(1).toLowerCase()) .join('');
toPascalCase('some_database_field_name'); // 'SomeDatabaseFieldName' toPascalCase('Some label that needs to be pascalized'); // 'SomeLabelThatNeedsToBePascalized' toPascalCase('some-javascript-property'); // 'SomeJavascriptProperty' toPascalCase('some-mixed_string with spaces_underscores-and-hyphens'); // 'SomeMixedStringWithSpacesUnderscoresAndHyphens'

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