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feat: expand examples

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fix: library usage
This commit is contained in:
Declan Teevan
2026-04-03 19:31:59 +01:00
parent fca497ac1e
commit 8c64c67c80
8 changed files with 62 additions and 19 deletions
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README.md
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# Konami Code Snippets # Konami Code Snippets
The Konami Code (sometimes called the Contra Code) is a cheat code that has appeared in many Konami video games. The Konami Code (sometimes called the Contra Code) is a cheat code from many Konami video games.
It is now often used as a gag, homage or an easter egg within many products or websites. It is now often used as a gag, homage or an easter egg within many products or websites.
@@ -10,7 +10,7 @@ It is now often used as a gag, homage or an easter egg within many products or w
Read more about the Konami Code from the associated [Wikipedia entry](https://en.wikipedia.org/wiki/Konami_Code). Read more about the Konami Code from the associated [Wikipedia entry](https://en.wikipedia.org/wiki/Konami_Code).
## Usage ## 🚀 Usage
### JSDelivr ### JSDelivr
@@ -20,7 +20,7 @@ You can use this as a library within your web applications.
Version 1.0 (+ hotfixes): <https://cdn.jsdelivr.net/gh/hexolan/konami-code-snippets@1.0/src/core.min.js> Version 1.0 (+ hotfixes): <https://cdn.jsdelivr.net/gh/hexolan/konami-code-snippets@1.0/src/core.min.js>
Latest Version: <https://cdn.jsdelivr.net/gh/hexolan/konami-code-snippets/src/core.min.js> Latest Version: <https://cdn.jsdelivr.net/gh/hexolan/konami-code-snippets@main/src/core.min.js>
#### Example #### Example
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<body> <body>
(...content) (...content)
<script src="https://cdn.jsdelivr.net/gh/hexolan/konami-code-snippets/src/core.min.js" /> <script src="https://cdn.jsdelivr.net/gh/hexolan/konami-code-snippets@main/src/core.min.js"></script>
<script> <script>
document.addEventListener("keydown", handleKonami(() => { document.addEventListener("keydown", handleKonami(() => {
@@ -42,9 +42,9 @@ Latest Version: <https://cdn.jsdelivr.net/gh/hexolan/konami-code-snippets/src/co
### Direct ### Direct
An example of direct usage can be seen within the source of [examples/redirect.html](/examples/redirect.html). An example of direct usage can be seen within the source of [examples/direct-nolib-unminified.html](/examples/direct-nolib-unminified.html).
## License ## 📜 License
The code contained within this repository is released under the [MIT License](/LICENSE.txt). The code contained within this repository is released under the [MIT License](/LICENSE.txt).
examples/redirect.html → examples/direct-nolib-unminified.html
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<html> <html>
<head> <head>
<title>Konami Code Snippets: Redirect</title> <title>Konami Code Snippets: Nolib Usage</title>
</head> </head>
<body> <body>
<p>Enter the code.</p> <p>Konami Code</p>
<script> <script>
const keySequence = ["ArrowUp", "ArrowUp", "ArrowDown", "ArrowDown", "ArrowLeft", "ArrowRight", "ArrowLeft", "ArrowRight", "b", "a"]; const keySequence = ["ArrowUp", "ArrowUp", "ArrowDown", "ArrowDown", "ArrowLeft", "ArrowRight", "ArrowLeft", "ArrowRight", "b", "a"];
examples/direct-nolib.html
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<html>
<head>
<title>Konami Code Snippets: Direct Usage</title>
</head>
<body>
<p>Konami Code</p>
<script>
const konamiSequence = ["ArrowUp", "ArrowUp", "ArrowDown", "ArrowDown", "ArrowLeft", "ArrowRight", "ArrowLeft", "ArrowRight", "b", "a"]; let konamiStep = 0, handleKonami = callback => e => { konamiSequence[sequenceStep] === e.key ? (konamiStep += 1, konamiStep === konamiSequence.length && (konamiStep = 0, callback())) : konamiStep = 0 };
function konamiCallback() {
window.location.href = `https://github.com/hexolan/konami-code-snippets`;
}
document.addEventListener("keydown", handleKonami(konamiCallback));
</script>
</body>
</html>
examples/index.html
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<html>
<head>
<title>Konami Code Snippets</title>
</head>
<body>
<p>Konami Code - O(1)</p>
<sup>Note: currently just lower case `b` and `a` keys.</sup>
<sup>(as using <code>event.code</code> not deprecated <code>event.keyCode</code>)</sup>
<script src="https://cdn.jsdelivr.net/gh/hexolan/konami-code-snippets@main/src/core.min.js"></script>
<script>
function konamiCallback() {
window.location.href = `https://github.com/hexolan/konami-code-snippets`;
}
document.addEventListener("keydown", handleKonami(konamiCallback));
</script>
</body>
</html>
package.json
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"author": "Declan Teevan <dt@hexolan.com>", "author": "Declan Teevan <dt@hexolan.com>",
"license": "MIT", "license": "MIT",
"packageManager": "pnpm@10.33.0", "packageManager": "pnpm@10.33.0",
"dependencies": { "devDependencies": {
"minify": "^15.2.0" "minify": "^15.2.0"
} }
} }
pnpm-lock.yaml
Generated
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importers: importers:
.: .:
dependencies: devDependencies:
minify: minify:
specifier: ^15.2.0 specifier: ^15.2.0
version: 15.2.0(@emnapi/core@1.9.2)(@emnapi/runtime@1.9.2) version: 15.2.0(@emnapi/core@1.9.2)(@emnapi/runtime@1.9.2)
src/core.js
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const keySequence = ["ArrowUp", "ArrowUp", "ArrowDown", "ArrowDown", "ArrowLeft", "ArrowRight", "ArrowLeft", "ArrowRight", "b", "a"]; // SPDX-License-Identifier: MIT
let sequenceStep = 0;
let handleKonami = (e) => (callback) => { const konamiSequence = ["ArrowUp", "ArrowUp", "ArrowDown", "ArrowDown", "ArrowLeft", "ArrowRight", "ArrowLeft", "ArrowRight", "b", "a"];
if (keySequence[sequenceStep] === e.key) { let konamiStep = 0;
sequenceStep += 1;
if (sequenceStep === keySequence.length) { let handleKonami = (callback) => (e) => {
sequenceStep = 0; if (konamiSequence[sequenceStep] === e.key) {
konamiStep += 1;
if (konamiStep === konamiSequence.length) {
konamiStep = 0;
callback(); callback();
} }
} else { } else {
sequenceStep = 0; konamiStep = 0;
} }
} }
src/core.min.js
Vendored
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const keySequence=["ArrowUp","ArrowUp","ArrowDown","ArrowDown","ArrowLeft","ArrowRight","ArrowLeft","ArrowRight","b","a"];let sequenceStep=0,handleKonami=e=>callback=>{keySequence[sequenceStep]===e.key?(sequenceStep+=1,sequenceStep===keySequence.length&&(sequenceStep=0,callback())):sequenceStep=0}; const konamiSequence=["ArrowUp","ArrowUp","ArrowDown","ArrowDown","ArrowLeft","ArrowRight","ArrowLeft","ArrowRight","b","a"];let konamiStep=0,handleKonami=callback=>e=>{konamiSequence[sequenceStep]===e.key?(konamiStep+=1,konamiStep===konamiSequence.length&&(konamiStep=0,callback())):konamiStep=0};