string-incr

Increment or decrement string with number

Install

$ npm install --save string-incr

Signature

stringIncr(str: string | number, firstAppend?: string | number): string;
stringDecr(str: string | number, firstAppend?: string | number): string;

• str: String|Number = '' : The string
• firstAppend: String|Number = ' 2': The append content for the first number (when first parameter don't finish with number)

Examples

import { stringIncr, stringDecr } from "string-inc";

stringIncr("Hello world 42");
//=> 'Hello world 43'

stringDecr("Hello world 42");
//=> 'Hello world 41'

stringIncr

import { stringIncr } from "string-inc";

stringIncr("Hello world");
//=> 'Hello world 2'

stringIncr("Hello world 2");
//=> 'Hello world 3'

stringIncr("Hello world 42");
//=> 'Hello world 43'

stringDecr

All exemples for stringIncr work for stringDecr

import { stringDecr } from "string-inc";

stringDecr("Hello world");
//=> 'Hello world -1'

stringDecr("Hello world 2");
//=> 'Hello world 1'

stringDecr("Hello world 42");
//=> 'Hello world 41'

Only last numbers are incremented

stringIncr("Hello world42");
//=> 'Hello world43'

stringIncr("Hello 42 world99");
//=> 'Hello 42 world100'

stringIncr("Hello-world-42");
//=> 'Hello-world-43'

stringIncr("Hello-world-4242");
//=> 'Hello-world-4243'

Change append text for the first number

stringIncr("Hello world", "-1"); // With string, finish with number
//=> 'Hello world-1'

stringIncr("Hello world", "-2");
//=> 'Hello world-2'

stringIncr("Hello world", 1); // Use only number (auto add space before)
//=> 'Hello world 1'

stringIncr("Hello world", 42);
//=> 'Hello world 42'

stringIncr("Hello world", "#"); // Or use only separator
//=> 'Hello world#2'

stringIncr("Hello world 2", "-2"); // The second parameter is only for the first number !
//=> 'Hello world 3'

Change log

• 3.1.1 Fix typo in readme
• 3.0.0 Add decrement
• 2.0.0 Typescript support