如果在具有特定键的特定对象中，则检查值
我想检查 obj 中是否存在输入值，我显示警报（'num found'），然后我在第二个 obj2 中按下该数字，并且该数字从 obj1 禁用，（我的意思是当我再次检查该数字时，它应该不可用），我不知道最好的方法是在对象中添加一些额外的键 used ，还是创建一个新对象 obj2 然后如果已经使用了值则先检查它 .
var obj = [
{"id":1, "num":123, "val":20, "type":"weekend"},
{"id":2, "num":456, "val":30, "type":"weekend"},
{"id":3, "num":789, "val":15, "type":"semaine"},
{"id":4, "num":101, "val":25, "type":"semaine"}
];
var obj2 = [
];
html:
<input id="code"/> // val = 15
Js
jQuery("input").on("keydown",function search(e) {
if(e.keyCode == 13) { //when hit enter
var tik = jQuery(this).val();
console.log(tik);
var obj = [
{"id":1, "num":123, "val":20, "type":"week"},
{"id":2, "num":456, "val":30, "type":"week"},
{"id":3, "num":789, "val":15, "type":"day"},
{"id":4, "num":101, "val":25, "type":"day"}
];
if (tik in obj2.num) { // It doesn't work for me
alert("num found");
//I push this value to obj2
...
} else {
alert("num not found");
//I don't push to obj2
}
2 years ago
你的情况可能是这样的：