Question

我正在运行以下内容：

var countries = [];
$("#usp-custom-3 option").each(function() {
  var single = $(this).text();
  if($(single == "United States of America")) {
    $(this).text() == "United States";
  }
  countries.push(single);
  console.log(single);
});

基本上我要做的是将United States of America转换为United States之前将其与其他国家/地区一起推送到阵列中，因为我有一个{{1}的国家/地区列表}。

Answer 1

var countries = [];

  $("#usp-custom-3 option").each(function() {
    var single = $(this).text();
    if(single == "United States of America") {
     single= "United States";
    }
    countries.push(single);
    console.log(single);
  });

Answer 2

试试这个

＆＃13;

var countries = [];
$("#usp-custom-3 option").each(function () {
    var single = $(this).text();
    if (single == "United States of America") {
        single = "United States";
    }
    countries.push(single);
    console.log(single);
});

console.log(countries);

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="usp-custom-3">
   <option>United States of America</option>
   <option>India</option>
   <option>UK</option>
   <option>United States of America</option>
   <option>India</option>
   <option>UK</option>
   <option>United States of America</option>
</select>

＆＃13;

Answer 3

var countries = [];
$("#usp-custom-3 option").each(function () {
    var single = $(this).text();
    if (single == "United States of America") {
        single = "United States";
    }
    countries.push(single);
    console.log(single);
});

尝试这个。

Answer 4

修复了您的问题并添加了一点重构。

var countries = [];
var us = 'United States';
var usa = 'United States of America';

$("#usp-custom-3 option").each(function() {
  var single = $(this); //gets jquery instance of the element
  if(single.text() == usa) { //Check if its text is USA
    single.text(us); //Replace the option text with 'United States'
  }
  countries.push(single.text()); //Push value into country list
});

Answer 5

我总是想知道为什么它如此重要，为了使用jquery而将代码与jquery混合起来。

它可以很简单（通过一个简单的检查获取节点并将其映射到平面数组）：

var nodesArray = [].slice.call(document.querySelectorAll("#some_select option")).map(function(v){return (v.innerText == 'United States of America') ? 'United States' : v.innerText});
console.log(nodesArray.toString());

Answer 6

$（this）.text（）==“United States”;是有问题的。

“==”是比较表达式而不是赋值表达式。

为此赋值只需使用$（this）.text（“任何你想要的文字”）

如何从字符串中删除字符串并推入数组？

6 个答案: