@stdlib/assert-is-capitalized

Test if a value is a string having an uppercase first character.

https://github.com/stdlib-js/assert-is-capitalized

Science Score: 26.0%

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Low similarity (14.9%) to scientific vocabulary

Keywords

assert assertion capitalized is iscapitalized javascript node node-js nodejs stdlib string test util utilities utility utils valid validate

Last synced: 6 months ago · JSON representation

Repository

Test if a value is a string having an uppercase first character.

Basic Info

Host: GitHub
Owner: stdlib-js
License: apache-2.0
Language: JavaScript
Default Branch: main
Homepage: https://github.com/stdlib-js/stdlib
Size: 672 KB

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Stars: 1
Watchers: 3
Forks: 0
Open Issues: 0
Releases: 0

Topics

assert assertion capitalized is iscapitalized javascript node node-js nodejs stdlib string test util utilities utility utils valid validate

Created over 4 years ago · Last pushed 6 months ago

Metadata Files

Readme Changelog Contributing License Code of conduct Citation Security

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

isCapitalized

Test if a value is a string having an uppercase first character.

## Installation ```bash npm install @stdlib/assert-is-capitalized ``` Alternatively, - To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]). - If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions). - For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]). - To use as a general utility for the command line, install the corresponding [CLI package][cli-section] globally. The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships. To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

## Usage ```javascript var isCapitalized = require( '@stdlib/assert-is-capitalized' ); ``` #### isCapitalized( value ) Tests if a `value` is a `string` having an uppercase first character. ```javascript var bool = isCapitalized( 'Every noble work is at first impossible.' ); // returns true bool = isCapitalized( 'HELLO WORLD!' ); // returns true bool = isCapitalized( 'salt and light' ); // returns false ```

## Notes - The function validates that a `value` is a `string`. For all other types, the function returns `false`.

## Examples ```javascript var isCapitalized = require( '@stdlib/assert-is-capitalized' ); var bool = isCapitalized( 'Hello' ); // returns true bool = isCapitalized( 'HELLO' ); // returns true bool = isCapitalized( '' ); // returns false bool = isCapitalized( 'hello' ); // returns false ```

## CLI

## Installation To use as a general utility, install the CLI package globally ```bash npm install -g @stdlib/assert-is-capitalized-cli ```

### Usage ```text Usage: is-capitalized [options] [] Options: -h, --help Print this message. -V, --version Print the package version. --split sep Delimiter for stdin data. Default: '/\\r?\\n/'. ```

### Notes - If the split separator is a [regular expression][mdn-regexp], ensure that the `split` option is either properly escaped or enclosed in quotes. ```bash # Not escaped... $ echo -n $'beEp booP\nFoo Bar' | is-capitalized --split /\r?\n/ # Escaped... $ echo -n $'beEp booP\nFoo Bar' | is-capitalized --split /\\r?\\n/ ``` - The implementation ignores trailing delimiters.

### Examples ```bash $ is-capitalized Beep true ```

To use as a standard stream,

bash $ echo -n 'boop' | is-capitalized false

By default, when used as a standard stream, the implementation assumes newline-delimited data. To specify an alternative delimiter, set the split option.

bash $ echo -n 'beep\tFoo' | is-capitalized --split '\t' false true

* * * ## Notice This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more. For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib]. #### Community [![Chat][chat-image]][chat-url] --- ## License See [LICENSE][stdlib-license]. ## Copyright Copyright © 2016-2025. The Stdlib [Authors][stdlib-authors].

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Name: stdlib
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Website: https://stdlib.io
Twitter: stdlibjs
Repositories: 3,692
Profile: https://github.com/stdlib-js

Standard library for JavaScript.

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Total packages: 2
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- npm 5,073 last-month

Total dependent packages: 3
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Total dependent repositories: 2
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Total versions: 18
Total maintainers: 4

npmjs.org: @stdlib/assert-is-capitalized

Test if a value is a string having an uppercase first character.

Homepage: https://stdlib.io
License: Apache-2.0
Latest release: 0.2.2
published over 1 year ago

Versions: 13
Dependent Packages: 3
Dependent Repositories: 2
Downloads: 5,066 Last month

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Dependent repos count: 7.6%

Average: 10.4%

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Maintainers (4)

planeshifter rreusser stdlib-bot kgryte

Funding

type: opencollective
url: https://opencollective.com/stdlib

Last synced: 6 months ago

npmjs.org: @stdlib/assert-is-capitalized-cli

Test if a value is a string having an uppercase first character.

Homepage: https://stdlib.io
License: Apache-2.0
Latest release: 0.2.2
published over 1 year ago

Versions: 5
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 7 Last month

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Average: 45.4%

Dependent packages count: 53.5%

Maintainers (4)

planeshifter rreusser stdlib-bot kgryte

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type: opencollective
url: https://opencollective.com/stdlib

Last synced: 6 months ago

Dependencies

package.json npm

@stdlib/assert-is-boolean ^0.0.x development
@stdlib/assert-is-browser ^0.0.x development
@stdlib/assert-is-windows ^0.0.x development
@stdlib/bench ^0.0.x development
@stdlib/process-exec-path ^0.0.x development
@stdlib/string-from-code-point ^0.0.x development
@stdlib/string-replace ^0.0.x development
istanbul ^0.4.1 development
proxyquire ^2.0.0 development
tap-spec 5.x.x development
tape git+https://github.com/kgryte/tape.git#fix/globby development
@stdlib/assert-is-string ^0.0.x
@stdlib/cli-ctor ^0.0.x
@stdlib/fs-read-file ^0.0.x
@stdlib/process-read-stdin ^0.0.x
@stdlib/regexp-eol ^0.0.x
@stdlib/streams-node-stdin ^0.0.x
@stdlib/string-lowercase ^0.0.x
@stdlib/string-uppercase ^0.0.x

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@stdlib/assert-is-capitalized

Science Score: 26.0%

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isCapitalized

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npmjs.org: @stdlib/assert-is-capitalized

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