getelementbyid

getElementById react-native

由 半城伤御伤魂 提交于 2019-12-08 03:35:00
问题 How do you get elements in react-native? My use-case is a login screen. the submit button is pressed and now i want to get the value of username and password TextInputs. export default class Login extends Component { login() { //document.getElementById('username'); //run-time error } render() { return ( <View style={{flex: 1,flexDirection: 'column',justifyContent: 'space-between',margin:10}}> <View style={{backgroundColor: 'powderblue'}} /> <MyTextField id='user' placeholder="User Name" />

android webview find element doesn't work before Kitkat version

由 别等时光非礼了梦想. 提交于 2019-12-08 03:18:52
问题 I have a app which clicks automatically button by javascript. It works fine but before Kitkat versions find element doesn't work . webView.setWebViewClient(new WebViewClient() { public void onPageFinished(WebView view, String url) { view.loadUrl("javascript:window.frames['top_level'].document.getElementById('enter_desktop').click();"); } }); Before Kitkat window.frames['top_level'].document.getElementById('enter_desktop') returns frame's src value not my element.Please help me? Thanks in

PHP: Appending (adding) html content to exsisting element by ID

由 拟墨画扇 提交于 2019-12-08 03:06:25
问题 I need to search for an element by ID using PHP then appending html content to it. It seems simple enough but I'm new to php and can't find the right function to use to do this. $html = file_get_contents('http://example.com'); $doc = new DOMDocument(); libxml_use_internal_errors(true); $doc->loadHTML($html); $descBox = $doc->getElementById('element1'); I just don't know how to do the next step. Any help would be appreciated. 回答1: you can also append this way $html = ' <html> <body> <ul id=

Can I assign document.getElementById to variable in javascript [duplicate]

由 允我心安 提交于 2019-12-08 02:37:34
问题 This question already has answers here : Why can't I directly assign document.getElementById to a different function? (5 answers) Closed 2 years ago . I think document.getElementById is a function. So this function can be assigned to variable. Like this var hello = document.getElementById; console.log(hello('hello'))); <div id="hello">hello</div> But It occurred error like this: Uncaught TypeError: Illegal invocation 回答1: The issue is context. When you take the reference to the function, you

Replace item prices in HTML tags from JSON data

由 久未见 提交于 2019-12-07 19:36:50
问题 I have a very simple problem, but I just can't figure it out. My Javascript knowledge is a bit rusty :-) Here is my JSON data (stored in a file prices.xml) { "prices": { "bananas": "2,39", "apples": "3,39" } } Here is my html: <ul> <LI>Our price for bananas:<SPAN id="bananaprice">BANANA PRICE SHOULD GO HERE</SPAN></LI> <LI>Our price for apples:<SPAN id="appleprice">APPLE PRICE SHOULD GO HERE</SPAN></LI> </ul> All i really need is a javascript (no jquery if possible) that pulls the values from

document.getElementById + regex

由 怎甘沉沦 提交于 2019-12-07 11:38:49
问题 Can document.getElementById be used along with a regular expression? For example an id on one page will be Product-1 while on another page it will be product-3 . (Don't aks me why but it cannot be changed apparently.) What I would like to do is run a getElementById looking for an Id of Product-x where x is either 1 or 3. Currently I have something like this: var _container = document.getElementById("product-1") || document.getElementById("product-3"); which works - but I wonder if there is a

DOM.getElementById in GWT doesn't seem to work

由 陌路散爱 提交于 2019-12-07 11:05:43
问题 I've the following code snippet: myPanel.getElement().setId("left-content"); //... //... Element e = DOM.getElementById("left-content");// this returns NULL! Update Here is a longer code snippet: public class RootComposite extends Composite { public RootComposite(int comboSelectedIndex) { VerticalPanel verticalPanel = new VerticalPanel(); initWidget(verticalPanel); VerticalPanel containerPanel = new VerticalPanel(); containerPanel.setSpacing(1); verticalPanel.add(containerPanel);

How to get html from element by id with jQuery

由 青春壹個敷衍的年華 提交于 2019-12-07 03:30:46
问题 I have simple list: <ul id="tabs_nav"> <li id="t_00">data</li> <li id="t_01">data</li> <li id="t_02">data</li> <li id="t_03">data</li> </ul> Now: How do I get the html of the first element, depending on what is ID. I would add that all of ID's change dynamically with the click of the button. This is my code: btn.on('click',function(){ var ladder_nav_tabs = $('#tabs_nav'), first_ladder_element_inset_id = ladder_nav_tabs.find('li').first().attr('id'), first_ladder_element_inset_html = ladder

getElementById not working in Google Chrome extension for <embed>

由 别来无恙 提交于 2019-12-06 16:26:15
问题 In my Google Chrome extension content script I have the following: jQuery(document).ready(function() { var player = document.getElementById('player'); console.log(player); console.log(document); }); I'm running it on any Hulu video, which has the following embed with id='player' <embed id="player" type="application/x-shockwave-flash" src="/site-player/playerwrapper.swf?cb=e80c477cL" width="100%" height="428" style="z-index:10;" name="player" quality="high" allowscriptaccess="always"

Onclick function based on element id

由 烈酒焚心 提交于 2019-12-06 13:20:37
问题 I'm working on a site with a visualization of inheritance relation. I try to link each nodebox with specific URLs. The html of Element looks like this: <g class="node" id="RootNode" transform="translate(0,453.125)"> I used $('#RootNode').click(function(){//do something} and also document.getElementById("RootNode").onclick(){//do something} Neither of them can find the element, nor setup the onclick function. Have I misunderstood anything? Any information will be helpful. Thanks. 回答1: Make
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