40 lines
986 B
HTML
40 lines
986 B
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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</head>
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<body>
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<button id="btn">test</button>
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<script>
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var btn = document.getElementById("btn");
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// btn.onclick = function () {
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// console.log("Hello");
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// }
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// btn.onclick = function(){
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// console.log("World");
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// btn.onclick = null;
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// }
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// btn.ondblclick = function(){
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// console.log("dobule~~");
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// }
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var fn1 = function () {
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console.log("Hello!");
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btn.removeEventListener('click', fn1)
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}
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var fn2 = function () {
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console.log("World!");
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}
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btn.addEventListener("click", fn1, false);
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btn.addEventListener("click", fn2, false);
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</script>
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</body>
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</html> |