Question

我有一个我无法解决的问题。我需要做这样的事情：

var text = "[{\"VID\":\"115\"},{\"VID\":\"119\"},{\"VID\":\"116\"},...]";

我想根据“text”变量获得以下结果：

var VIDs = ["115", "119", "116", ...];

Answer 1

我认为，您可以使用简单的正则表达式来提取所有数值

function makeTable(leaderBoard) {
    var table = document.createElement('table');
    var row = document.createElement('tr');
    for (var i = 0; i < leaderBoard[0].length; i++) {
        var cell = document.createElement('td');
        cell.textContent = leaderBoard[0][i];
        row.appendChild(cell);
    }
    var cell = document.createElement('td');
    cell.textContent = "Total: " + leaderBoard[1];
    row.appendChild(cell);
    table.appendChild(row);
    document.getElementById('leaderBoard').appendChild(table);
}

var userCards = ["Card 1", "Card 2", "Card 3"];
var userTotal = 10;
makeTable([userCards, userTotal]);

var text = "[{\"VID\":\"115\"},{\"VID\":\"119\"},{\"VID\":\"116\"}]";
var vids = text.match(/\d+/g);

snippet.log(JSON.stringify(vids))

使用JSON处理的另一种解决方案是

<!-- Provides the `snippet` object, see http://meta.stackexchange.com/a/242144/134069 -->
<script src="http://tjcrowder.github.io/simple-snippets-console/snippet.js"></script>

var text = "[{\"VID\":\"115\"},{\"VID\":\"119\"},{\"VID\":\"116\"}]";
var vids = JSON.parse(text).map(function(obj) {
  return obj.VID;
});

snippet.log(JSON.stringify(vids))

如何将字符串中的特殊值放入Array String中

1 个答案: