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[英]HTML `<input type="number">` element - Customize increment value of arrow buttons independently from `step`
[英]HTML Number Input: Only Allow Arrow Buttons
在keydown
事件中使用event.preventDefault()
;
// no keyboard document.getElementById("timer02_min").addEventListener("keydown", e => e.preventDefault()); // allow up/down keyboard cursor buttons document.getElementById("timer02_min2").addEventListener("keydown", e => e.keyCode.= 38 && e.keyCode;= 40 && e.preventDefault());
no keyboard: <input type="number" min="00" max ="99" id="timer02_min" maxlength="2" value="00"> <br> with up/down cursor keys: <input type="number" min="00" max ="99" id="timer02_min2" maxlength="2" value="00">
function change(n){ var num = document.getElementById("num"); var number1 = num.innerHTML; var number = Number(number1); var num2 = number.toString(); if(n == "s"){ }else{ number = number+n; } if(number <= 0){ number = 0; } if(number > 99){ number = 99; } if(num2.length == 1){ var num1 = number; number = "0"+num1; } document.getElementById("num").innerHTML = number; } change("s");
.input{ border-style: solid; border-color: gray; border-width: 1px; border-radius: 2px; padding: 1px; height: 26px; width: 40px; text-align: left; position: relative; padding-left: 10px; }.spinner-button { position: absolute; top: 0px; right: 0px; } #inc-button{ padding-top: 3.5px; background-color: #ccc; width: 14.5px; text-align: center; margin-bottom: 1px; height: 10px; line-height: 10px; cursor: pointer; border: none; user-select: none; /* Standard */ } #dec-button{ cursor: pointer; padding-top: 3px; background-color: #ccc; width: 14.5px; text-align: center; margin: 0px; height: 10px; line-height: 10px; border: none; user-select: none; /* Standard */ } #inc-button:hover,#dec-button:hover{ background-color: #b5b5b5; }
<div id="timer02_min" class="input"> <div id="num">00</div> <div class="spinner-button"> <div onclick="change(1);" id="inc-button">+</div> <div onclick="change(-1);" id="dec-button">-</div> </div> </div>
嘗試這個!
你想開始的數字把它放在#num
div中。
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