Created
April 20, 2021 20:05
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Some handy string functions written in TypeScript
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| /** | |
| * "document_id" -> "document id" | |
| * "documentId" -> "document id" | |
| */ | |
| export const toSpaces = (str: string): string => | |
| str && str | |
| .replace(/[-_]/g, ' ') | |
| .replace(/([A-Z])/g, ' $1'); | |
| /** | |
| * "Hello World" -> "hello_world" | |
| */ | |
| export const toSnakeCase = (str: string): string => | |
| 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.toLowerCase()) | |
| .join('_'); | |
| /** | |
| * "Hello World" -> "hello-world" | |
| */ | |
| export const toKebabCase = (str: string): string => | |
| 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.toLowerCase()) | |
| .join('-'); | |
| /** | |
| * "Hello World" -> "helloWorld" | |
| */ | |
| export const toCamelCase = (str: string): string => | |
| str && str | |
| .toLowerCase() | |
| .replace(/[^a-zA-Z0-9]+(.)/g, (_, chr: string) => chr.toUpperCase()); | |
| /** | |
| * "camelCase" -> "Camelcase" | |
| * "Hello World" -> "Hello World" | |
| * "Hello_world" -> "Hello_world" | |
| */ | |
| export const toPascalCase = (str: string): string => | |
| str && str | |
| .replace(/\w\S*/g, m => m.charAt(0).toUpperCase() + m.substr(1).toLowerCase()); |
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