本文實例講述了JS實現從對象獲取對象中單個鍵值的方法。分享給大家供大家參考，具體如下：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>m.survivalescaperooms.com JS獲取對象中單個鍵值</title></head><body><script> window.onload = function() { var add = document.getElementById("addArr") var arr = [ {aaa: 51, bbb: 174}, {aaa: 270, bbb: 174} ]; obj = { xxx: 51, yyy: 174, zzz: 175, aaa: 1, bbb: "abaababababa", ccc: 545, ddd: 2455 }; var aObj = {}; function addArr() { aObj.aaa = obj.aaa aObj.bbb = obj.bbb }; addArr(); add.addEventListener("click", function() { arr.push(aObj); console.log(arr); }); }</script><div> <button id="addArr">ADD</button></div></body></html>運行結果：
希望本文所述對大家JavaScript程序設計有所幫助。
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