[英]How to make a variable using keys from literal object, javascript
[英]Using Variable Within JavaScript Object Literal
基本上,我在從輸入框獲取信息並在對象文字中使用該變量時遇到了麻煩。
這是我的代碼:
$("document").ready(function() {
function updateEvent(){
render();
}
function render() {
//get values from input
var gallons = $("#gallons").val();
var electricity = $("#electricity").val();
var energy = $("#energy").val();
var figure = new Highcharts.Chart({
series: [{
name: 'Throttle',
data: [0, 0, 30 , 0, energy, 30, 0, 0] //Variables will not work in here, no specific error but data doesn't show
}, {
name: 'Power',
data: [30, 30 , 30, 30, 30, 30, 30, 30]
}]
});
我嘗試嵌入一個函數並執行其他技巧,但沒有任何效果,我可能做錯了,我不確定。 有什么方法可以在對象文字中使用變量,而無需完全重新編碼結構。
任何幫助將不勝感激。
function doStuff(){
var realIncome = document.getElementById("income").value;
var objLit= { realIncome: realIncome,
desiredIncome: realIncome * 4 };
console.log(objLit);
document.getElementById("out").innerText =
objLit.realIncome + " " + objLit.desiredIncome;
}
和HTML
Big Number
<input id="income" name="income" type="number"
placeholder="please enter your desired income">
<button name="calculate" onclick="doStuff()">click me </button>
Your income <span id="out"></span><br />
請看一下我的演示代碼: http : //jsfiddle.net/mppAM/2/
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