Strops NPM | npm.io

:hocho: Strops (String Operations)

:pushpin: Installation

$ npm i strops

// CommonJS
const strops = require('strops')
// or:
const { replace, remove } = require('strops')

// ESM
import * as strops from 'strops'
// or:
import { replace, remove } from 'strops'

:zap: Methods

Method	Description	Params
`remove`	Removes all substrings and returns `<string>`	`<string, ...substrings>`
`replace`	Replaces all substrings with new substring and returns `<string>`	`<string, newSubstring, ...substrings>`
`getAtoB`	Returns all substrings from A to B as an `<array>` of `<string>`	`<string, a, b>`
`getAtoBInner`	Returns all substrings from A to B as an `<array>` of `<string>` exclusive	`<string, a, b>`
`removeAtoB`	Removes all substrings from A to B as a `<string>`	`<string, a, b>`
`removeAtoBInner`	Removes all substrings from A to B as a `<string>` exclusive	`<string, a, b>`
`getIndexes`	Returns index pairs for all substrings as a `{startIndex: endIndex, ...}`	`<string, ...substrings>`
`getIndexesAtoB`	Returns index pairs for all substrings from A to B as a `{startIndex: endIndex, ...}`	`<string, a, a>`
`getIndexesAtoBInner`	Returns index pairs for all substrings from A to B as a `{startIndex: endIndex, ...}` exclusive	`<string, a, b>`

:heart_eyes: Pretty tooltips in your IDE

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:blue_book: Usage

Common snippet for examples below:

const strops = require('strops')

const text = `<table>
<tr><td class="class-1"><b>JavaScript</b></td></tr>
<tr><td class="class-2">C++</td></tr>
<tr><td class="class-1">Python</td></tr>
</table>`

remove:

const newText = strops.remove(text, '<b>', '</b>', 'class-1')

// returns:
// <table>
// <tr><td class="">JavaScript</td></tr>
// <tr><td class="class-2">C++</td></tr>
// <tr><td class="">Python</td></tr>
// </table>

// Also you can pass an array of substrings to get the same result
// Just use the spread operator to expand the array out to the parameters
const newText = strops.remove(text, ...['<b>', '</b>', 'class-1'])

removeAtoB:

const newText = strops.removeAtoB(text, '<tr>', '</tr>')

// returns:
// <table>
//
//
//
// </table>

removeAtoBInner:

const newText = strops.removeAtoBInner(text, '<tr>', '</tr>')

// returns:
// <table>
// <tr></tr>
// <tr></tr>
// <tr></tr>
// </table>

replace:

const newText = strops.replace(text, 'Rust', 'Python', 'C++', 'JavaScript')

// returns:
// <table>
// <tr><td class="class-1"><b>Rust</b></td></tr>
// <tr><td class="class-2">Rust</td></tr>
// <tr><td class="class-1">Rust</td></tr>
// </table>

getAtoB:

const newText = strops.getAtoB(text, '<tr>', '</tr>')

// returns:
// [
//  '<tr><td class="class-1"><b>JavaScript</b></td></tr>',
//  '<tr><td class="class-2">C++</td></tr>',
//  '<tr><td class="class-1">Python</td></tr>'
// ]

// You can easily get first entry by:

const newText = strops.getAtoB(text, '<tr>', '</tr>')[0]

// returns:
// <tr><td class="class-1"><b>JavaScript</b></td></tr>

getAtoBInner:

const newText = strops.getAtoBInner(text, '<tr>', '</tr>')

// returns:
// [
//  '<td class="class-1"><b>JavaScript</b></td>',
//  '<td class="class-2">C++</td>',
//  '<td class="class-1">Python</td>'
// ]

getIndexes:

const newText = strops.getIndexes(text, '<tr>')

// returns:
// { '8': 12, '60': 64, '99': 103 }
// * where <key> is start index, and <value> is an end index

// And yes. I know that we have <key> as a type of <string> here.
// But this approach simple to use when you get slices by iterating this:
const word = 'Hey bro!'
const indexes = { 0: 3, 4: 7 }

for (let key in indexes) {
	console.log(word.substring(key, indexes[key]))
}
// Hey
// bro

getIndexesAtoBInner:

const newText = strops.getIndexesAtoBInner(text, '<tr>', '</tr>')

// returns:
// { '12': 54, '64': 93, '103': 134 }
// * where <key> is start index, and <value> is an end index

getIndexesAtoB:

const newText = strops.getIndexesAtoB(text, '<tr>', '</tr>')

// returns:
// { '8': 59, '60': 98, '99': 139 }
// * where <key> is start index, and <value> is an end index