Lekcja 1 - ćwiczenia i zadanie
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<!DOCTYPE html>
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<html lang="pl">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>jQuery Lekcja 1</title>
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<script src="lib/jquery.js"></script>
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<script>
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$(document).ready(function () {
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let events = false
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$("#b1").on("click", function () {
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if(events) {
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$("#d1").off("mouseover")
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$("#d1").off("mouseleave")
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$("#b1").css("background-color", "gray")
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$("#tytul").text("obsługa zdarzeń usunięta")
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} else {
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$("#d1").on("mouseover", function () {
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$("#d1").html("<b>text bold</b><br><i>text italic</i>")
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$("#d1").css("background-color", "red")
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})
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$("#d1").on("mouseleave", function () {
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$("#d1").empty()
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$("#d1").css("background-color", "gray")
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})
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$("#b1").css("background-color", "red")
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$("#tytul").text("obsługa zdarzeń dodana")
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}
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events = !events
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})
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})
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</script>
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<style>
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* {
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font-family: monospace;
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}
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body {
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text-align: center;
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}
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#tytul {
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color: blue;
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}
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#b1 {
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border: none;
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padding: 1em;
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background-color: gray;
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margin: 1em;
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}
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#b1:hover {
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cursor: pointer;
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}
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#d1 {
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width: 400px;
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height: 400px;
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margin: 0 auto;
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background-color: gray;
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padding: 1em;
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font-size: 3em;
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color: white;
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}
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</style>
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</head>
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<body>
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<h1 id="tytul">T: jQuery - zdarzenia</h1><br>
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<button id="b1">DODAJ / USUŃ</button><br><br><br>
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<div id="d1"></div>
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</body>
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</html>
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