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[英]How to dynamically set onClick event for HTML Button and pass in a Unique Value
[英]How to pass array index with HTML onclick event
这个 function 接受一个参数(一个包含玩家属性的 object)
const yourTeam = [];
function selectingYourTeam(player) {
yourTeam.push(player);
alert(yourTeam[0].name);
return;
}
这个 for 循环创建了一个 HTML 表,其中包含您可以从中 select 的所有玩家。
for (i = 0; i < playerPool.length; i++) {
document.write('<tr><td>' + playerPool[i].name + '</td><td>' + playerPool[i].region +
'</td><td>' + playerPool[i].skills["Offence"] + '</td><td>' +
playerPool[i].skills["Defence"]
+ '</td><td>' + playerPool[i].playerID + '</td><td><button type="button"
onclick="selectingYourTeam(playerPool[0])">Select Player</button></td></tr>');
}
问题是当onclick
收到i
时, alert()
返回undefined
。 但是,当我给它[0]
时,它会按预期工作,所以我知道逻辑是有效的。 无论如何,它必须接收i
才能使其有目的。
<button type="button" onclick="selectingYourTeam(playerPool[0])">Select Player</button>
出了什么问题
'<button type="button" onclick="selectingYourTeam(' + playerPool[i] + ')">Select Player</button>'
您是否将 object 放在字符串中,而不是仅i
的值。
那可能是这样结束的
<button type="button" onclick="selectingYourTeam(Object[object])">Select Player</button>
所以 go 用这个:
'<button type="button" onclick="selectingYourTeam(playerPool[' + i + '])">Select Player</button>'
或者使用模板litterals (我建议你探索),这将是:
document.write(`
<tr><td>
${playerPool[i].name}
</td><td>
${playerPool[i].region}
</td><td>
${playerPool[i].skills["Offence"]}
</td><td>
${playerPool[i].skills["Defence"]}
</td><td>
${playerPool[i].playerID}
</td><td>
<button type="button" onclick="selectingYourTeam(playerPool[${i}])">Select Player</button>
</td></tr>`);
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