javascript - Startswith 函数用于搜索数组

Question

我有一个给我带来麻烦的功能。下面的代码返回错误消息“无法读取未定义的属性‘值’”。该函数应该只搜索帐户列表中的值并返回以提交的字符串开头的值。在示例中，提交“000555”应返回 0。

var accountlist = [{
    "value": "000555 - TEST ACCOUNT NAME1",
    "data": "184"
}, {
    "value": "006666 - TEST ACCOUNT NAME2",
    "data": "450"
}, {
    "value": "007777 - TEST ACCOUNT NAME2",
    "data": "451"
}];

function startswith(inputlist, searchkey, inputstring) {
    var searchlength = inputstring.length;
    console.log("starting search");

    for (var il = 0; il < inputlist.length; il++) {
        if (inputlist[il].window[searchkey].substring(0, (searchlength - 1)) == inputstring) {
            console.log("FOUND IT " + il + "      " + inputstring);
            return il
        }
    }
}

startswith(accountlist, "value","000555");

Answer 1

您可以使用查找功能:

var accountlist = [{
    "value": "000555 - TEST ACCOUNT NAME1",
    "data": "184"
}, {
    "value": "006666 - TEST ACCOUNT NAME2",
    "data": "450"
}, {
    "value": "007777 - TEST ACCOUNT NAME2",
    "data": "451"
}];
var searchString = '000555';
var result = accountlist.findIndex((account) => { return account.value.startsWith(searchString);}, searchString)
console.log(result)