如何在随机选择的对象内创建一个随机属性？

例如，如果我有：如何在随机选择的对象内创建一个随机属性？

var weapon = [ "sword", "mace", "staff"]; 

var swordtype = [ "long", "short"]; 

var stafftype = [ "quarter", "magic"];

和我的脚本随机选择“剑”在从武器可变我的HTML p标签来显示。

我怎么能说如果我的代码从武器变量中随机选择了“剑”，它也会随机选择一个“剑形”来配合它呢？使输出成为“长剑”还是“短剑”？

来源

2017-05-30 evolvingsymmetry

'武器= {剑： “长”， “短”]，锏： “重”， “轻”]，工作人员：[“四分之一”，“魔术”}？或者'[{type：“sword”，subtypes：[“long”，“short”]}，{type：“staff”，subtypes：[“quarter”，“magic”]}]'。或者是其他类似的结构，其中每一类武器的变体都与其直接相关。 – nnnnnn

您需要关联相关数据。所以，你的结构可能是这样的：

// Use objects, not arrays to store key/value pairs 
 
var weapons = { 
 
    sword:["long","short", "broad"], 
 
    mace: ["standard", "long", "short"], 
 
    staff: ["quarter", "magic", "wizard"], 
 
    "nuclear missle": ["10 megaton", "20 megaton", "50 kiloton"], 
 
    dagger: ["standard", "poison"] 
 
}; 
 

 
// Function for selecting random weapon 
 

 
function getRandomWeapon(){ 
 
    // Choose random weapon as an index from the weapons object: 
 
    var weaponNum = Math.floor(Math.random() * Object.keys(weapons).length); 
 
    
 
    // Get the property name that corresponds to that key number: 
 
    var weapon = Object.keys(weapons)[weaponNum]; 
 

 
    // Choose random weapon type as an index from the random weapon selected above: 
 
    var specificWeaponNum = Math.floor(Math.random() * weapons[weapon].length); 
 
    
 
    // Get the array value associated with that index 
 
    var specifcWeapon = weapons[Object.keys(weapons)[weaponNum]][specificWeaponNum]; 
 
    return specifcWeapon + " " + weapon; 
 
} 
 

 
document.querySelector("button").addEventListener("click", function(){ 
 
    document.getElementById("weapon").textContent = getRandomWeapon(); 
 
});

<div>You have a: <span id="weapon"></span></div> 
 
<button>Get Weapon</button>

来源

2017-05-30 02:50:22

这正是我所寻找的。非常感谢！ – evolvingsymmetry

如何在随机选择的对象内创建一个随机属性？

回答

相关问题