如何创建“搜索”字段的副本？

Question

我的应用程序中有一个搜索字段。 我需要使用相同的功能克隆此搜索字段。 页面左侧的一个搜索字段，页面右侧的另一个搜索字段。

如何使用JS进行克隆？

在我的JS代码下面

document.querySelector('#city').addEventListener(click,'keyup', function(e) {
  if (e.keyCode === 13) {

        var city = $(this).val();
        if (city !== '') {

            $.ajax({

                url: 'http://api.openweathermap.org/data/2.5/weather?q=' + city + "&units=metric" +
                    "&APPID=bb037310921af67f24ba53f2bad48b1d",
                type: "GET",
                dataType: "json",
                success: function (data) {
                    var widget = show(data);

                    $("#show").html(widget);

                    $("#city").val(' ');

                }

            });

        } else {
            $("#error").html("<div class='alert alert-danger text-center'><a href='#' class='close' data-dismiss='alert' aria-label='close'>&times;</a>Field cannot be empty</div>");
        }

    };
});


function show(data) {
    return "<h2>Current Weather for " + data.name + "," + data.sys.country + "</h2>" +
    "<h3><strong>Wind Speed</strong>: " + data.dt + "</h3>" +
        "<h3><strong>Weather</strong>: <img src='http://openweathermap.org/img/w/" + data.weather[0].icon + ".png'>" + data.weather[0].main + "</h3>" +
        "<h3><strong>Description</strong>: " + data.weather[0].description + "</h3>" +
        "<h3><strong>Temperature</strong>: " + data.main.temp + "&deg;C</h3>" +
        "<h3><strong>Wind Direction</strong>: " + data.wind.deg + "&deg;</h3>";

}

以及部分HTML代码

<body>
    <div class="jumbotron" id="jumbo">
        <h2 class="text-center" id="th2">Weather</h2>
    </div>

    <div class="container" id="cont">
        <div class="row">
            <h2 class="text-center text-primary">Your City</h2>
            <span id="error"></span>
        </div>

        <div class="row form-group form-inline" id="rowDiv">
            <input type="text" name="city" id="city" class="form-control" placeholder="City Name">
            <button id="submitWeather" class="btn btn-primary">Search City</button>
        </div>

        <div id="show"></div>

        </div>

Answer 1

作为一种选择，我建议创建一些函数或类来创建输入和描述节点，并将其附加到传递给它的任何容器ID（或类）上。 在html中，您只需要具有rowDiv id的元素。 显然，您可以根据自己的需要进行调整，但这只是一个想法。 我认为是这样的：

// rough example based of your code
class citySearch {
    constructor(parentContainerId) {
        this.searchField;
        this.displayArea;
        this.setStage(parentContainerId);
        this.hookListener();
    }

    setStage(parentContainerId) {
        this.searchField = document.createElement('input');
        this.displayArea = document.createElement('div');
        var parentContainer = document.getElementById(parentContainerId)

        parentContainer.appendChild(this.searchField);
        parentContainer.appendChild(this.displayArea);
    }

    show(data) {
        return "<h2>Current Weather for " + data.name + "," + data.sys.country + "</h2>" +
            "<h3><strong>Wind Speed</strong>: " + data.dt + "</h3>" +
            "<h3><strong>Weather</strong>: <img src='http://openweathermap.org/img/w/" + data.weather[0].icon + ".png'>" + data.weather[0].main + "</h3>" +
            "<h3><strong>Description</strong>: " + data.weather[0].description + "</h3>" +
            "<h3><strong>Temperature</strong>: " + data.main.temp + "&deg;C</h3>" +
            "<h3><strong>Wind Direction</strong>: " + data.wind.deg + "&deg;</h3>";

    }

    hookListener() {
        this.searchField.addEventListener('keypress', this.onClick.bind(this));
    }

    onClick(e) {
        if (e.keyCode === 13) {
            var city = this.searchField.value;
            if (city !== '') {
                fetch('http://api.openweathermap.org/data/2.5/weather?q=' + city + "&units=metric" + "&APPID=bb037310921af67f24ba53f2bad48b1d")
                .then( async(res) => {
                    const data = await res.json();
                    var widget = this.show(data);
                    this.displayArea.innerHTML = widget;
                    this.searchField.value = '';
                })

            } else {
            this.displayArea.innerHTML = "<div class='alert alert-danger text-center'><a href='#' class='close' data-dismiss='alert' aria-label='close'>&times;</a>Field cannot be empty</div>";
            }
        }
    }
}
var firstSearch = new citySearch('rowDiv');
var secondSearch = new citySearch('rowDiv');

HTML

 <div class="row form-group form-inline" id="rowDiv"></div>

Answer 2

这是一些示例代码，该代码允许1个代码库，2个搜索框并使两个搜索框保持同步。

 const searchBoxes = () => document.getElementsByClassName('searchbox'); document.addEventListener('DOMContentLoaded', function() { Array.from(searchBoxes()).forEach(element => { console.log(element.id); element.addEventListener('keyup', function(event) { let text = event.target.value; // This is just a demo document.getElementById("searchResult").innerHTML = text; // Loop other search boxes Array.from(searchBoxes()).forEach(e => { if (e.id != event.target.id) e.value = text; }); // ANY CODE HERE TO APPLY SEARCH }); }); });

 .searchbox { border: 1px solid black; background-color: wheat; } #searchResult { height: 100px; width: 100px; background-color: yellow; font-weight: bold; }

 <div> <span>Some Text Here</span> <input id="search1" class="searchbox" type="text" /> </div> <div id="searchResult">ALL MY PAGE STUFF</div> <div> <span>Some Text Here</span> <input id="search2" class="searchbox" type="text" /> </div>

如何创建“搜索”字段的副本？

问题描述

2 个解决方案

解决方案1
0 2018-12-28 00:24:19

解决方案2
0 2018-12-28 00:40:32

如何创建“搜索”字段的副本？

问题描述

2 个解决方案

解决方案1 0 2018-12-28 00:24:19

解决方案2 0 2018-12-28 00:40:32

解决方案1
0 2018-12-28 00:24:19

解决方案2
0 2018-12-28 00:40:32