23 lines
632 B
JavaScript
23 lines
632 B
JavaScript
function onKonamiCode(callback) {
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let input = "";
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const konami =
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"arrowuparrowuparrowdownarrowdownarrowleftarrowrightarrowleftarrowrightba";
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document.addEventListener("keydown", (e) => {
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input = (input + e.key.toLowerCase()).slice(-konami.length);
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if (input === konami) callback();
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});
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}
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onKonamiCode(() => {
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const body = document.body;
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const header = document.getElementById("header");
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if (body.style.backgroundColor === "white") {
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body.style.backgroundColor = "black";
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header.style.color = "white";
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} else {
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body.style.backgroundColor = "white";
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header.style.color = "black";
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}
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});
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