A library that helps manipulate strings in JavaScript, from uppercase to lowercase, via useful features
npm install stringjsStringJs is a library that introduces useful and easy functions to manipulate strings in JavaScript
!example workflow
!dependencies
!devdependencies
- import this package in your project
- choose a string and the right function in this library
- now you have your formatted string!
npm install --save stringjs
or
yarn add stringjs
const stringjs = require('stringjs')
or
import stringjs from 'stringjs'
After this import you can use any function provided in the section below with this call structure
stringjs.capitalizeFirst()
| Method | Input | Output |
| ------ | ----- | ------ |
| capitalizeFirst | a string | The string with the first letter capitalized |
| capitalizeLast | a string | The string with the last letter capitalized |
| capitalizeByIndex | a string and a parameter of type number, array or function | The string with the letter in the index provided (zero-based) capitalized.
If the index is greater then the string's length, returns the string as provided |array of integers, the string is capitalized in all the index positionsfunction, the function is used to test if the index matches the boolean condition of the function and then makes that character in uppercase
| capitalizeByLetter | a string and a parameter of type number, array or function | Converts in uppercase all the occurencies of the letter provided
|array of characters, all the letters included in the array are converted in uppercasefunction, the function is used to test if the letter matches the boolean condition of the function and then makes that characters in uppercase
| deCapitalizeFirst | a string | The string with the first letter decapitalized |
| deCapitalizeLast | a string | The string with the last letter decapitalized |
| deCapitalizeByIndex | a string and a parameter of type number, array or function | The string with the letter in the index provided (zero-based) capitalized.
If the index is greater then the string's length, returns the string as provided |array of integers, the string is decapitalized in all the index positionsfunction, the function is used to test if the index matches the boolean condition of the function and then makes that character in lowercase
| deCapitalizeByLetter | a string and a parameter of type number, array or function | Converts in lowercase all the occurencies of the letter provided
|array of characters, all the letters included in the array are converted in lowercasefunction, the function is used to test if the letter matches the boolean condition of the function and then makes that characters in lowercase
js
stringjs.capitalizeFirst('my cool string')// OUTPUT: My cool string
`$3
js
stringjs.capitalizeLast('my cool string')// OUTPUT: my cool strinG
`$3
js
stringjs.capitalizeByIndex('my cool string', 3)// OUTPUT: my Cool string
stringjs.capitalizeByIndex('my cool string', 50)
// OUTPUT: my cool string
stringjs.capitalizeByIndex('my cool string', [0, 1, 5, 20, 6, 13])
// OUTPUT: MY coOL strinG
stringjs.capitalizeByIndex('my cool string', (i) => { return i === 3 || i === 5 })
// OUTPUT: my CoOl string
`$3
js
stringjs.capitalizeByLetter('test', 't')// OUTPUT: TesT
stringjs.capitalizeByLetter('test', ['t', 'e'])
// OUTPUT: TEsT
stringjs.capitalizeByLetter('test', (l) => { return l === 'e' || l === 's' })
// OUTPUT: tESt
`$3
js
stringjs.deCapitalizeFirst('TEST')// OUTPUT: tEST
`$3
js
stringjs.deCapitalizeLast('TEST')// OUTPUT: TESt
`$3
js
stringjs.deCapitalizeByIndex('MY COOL STRING', 3)// OUTPUT: MY cOOL STRING
stringjs.deCapitalizeByIndex('MY COOL STRING', 50)
// OUTPUT: MY COOL STRING
stringjs.deCapitalizeByIndex('MY COOL STRING', [0, 1, 5, 20, 6, 13])
// OUTPUT: my COol STRINg
stringjs.deCapitalizeByIndex('MY COOL STRING', (i) => { return i === 3 || i === 5 })
// OUTPUT: MY cOoL STRING
`$3
js
stringjs.deCapitalizeByLetter('TEST', 'T')// OUTPUT: tESt
stringjs.deCapitalizeByLetter('TEST', ['T', 'E'])
// OUTPUT: teSt
stringjs.deCapitalizeByLetter('TEST', (l) => { return l === 'E' || l === 'S' })
// OUTPUT: TesT
``
MIT