![](/img/trans.png)
[英]How can I create a numeric array based on the number of array objects in React?
[英]How can i create buttons based on the number of objects in my array?
我有一個包含3個對象的數組
map.la = [object, object, object];
我想為每個這些對象創建一個按鈕。 我必須進行動態創建按鈕的原因是因為對象的數量會不時變化。
我如何遍歷每個對象並為其創建一個按鈕,然后將按鈕的工具提示設置為等於每個對象內的name屬性?
按鈕:
this._selectionbutt = new SegButton({
items: [
//each of the below items (this.selection) should be added here to items array. because we have 3 buttons there
//should be three unique items here. the items should have the same name as the variable we instantiate the
//button with.
this._oSelection
]
});
this.selection = new SegButtItems({
icon: "map",
tooltip: //this should be the name property of each item
press: this._handleSelection();
});
一旦用戶選擇了按鈕中的任何一個,它們將被帶到相同的功能(this._handleSelection()),並且該功能將需要檢查名稱屬性字符串,例如“ map333”就是這樣。
任何指導將不勝感激:)
謝謝
這是一個簡單的示例:
HTML代碼。 創建div,至此我們將添加按鈕
<div id="buttons"></div>
js代碼:
//create objects
var Object1 = {
icon: "map",
tooltip: "Press Me",
press: 'console.log("Button1 pressed")'
};
var Object2 = {
icon: "map",
tooltip: "Press Me",
press: 'console.log("Button2 pressed")'
};
var Object3 = {
icon: "map",
tooltip: "Press Me",
press: 'console.log("Button3 pressed")'
};
//add objects to array
var ar = [Object1, Object2, Object3];
//add buttons for every object in array
ar.forEach( function(v) {
var button= document.createElement('button');
button.type= 'button';
button.appendChild(document.createTextNode(v.tooltip));
button.setAttribute('onClick',v.press);
document.getElementById("buttons").appendChild(button);
} );
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.