I use ajax get a json like this:
{"dataStore":"[{\"delete_flag\":\"false\",\"id\":\"74\",\"icon_img\":\"img/a5.jpeg\"}]"}
How to append "delete_flag" , "id" , "icon_img" to 3 different places on html ?
You can use this pure javascript method like below.
The code basically uses document.getElementById() to get the element, and .innerHTML to set the inside of the element to the value of the object.
This code (and the code using jQuery) both use JSON.parse() to parse the data into the correct object that our code can read. The [0] at the end is to select the object we wanted since it would give us an array (and we want an object).
const result = {"dataStore":"[{\"delete_flag\":\"false\",\"id\":\"74\",\"icon_img\":\"img/a5.jpeg\"}]"};
const parsedData = JSON.parse(result.dataStore)[0];
document.getElementById("delete_flag").innerHTML = parsedData.delete_flag;
document.getElementById("id").innerHTML = parsedData.id;
document.getElementById("icon_img").src = parsedData.icon_img;
<div id="delete_flag"></div>
<div id="id"></div>
<img id="icon_img">
Or you can use jQuery (which in my opinion, is much simpler). The code below uses .html() to change the inside of the divs to the item from the object, and .attr() to set the attribute src to the image source you wanted.
const result = {"dataStore":"[{\"delete_flag\":\"false\",\"id\":\"74\",\"icon_img\":\"img/a5.jpeg\"}]"};
const parsedData = JSON.parse(result.dataStore)[0];
$("#delete_flag").html(parsedData.delete_flag);
$("#id").html(parsedData.id);
$("#icon_img").attr("src", parsedData.icon_img);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="delete_flag"></div>
<div id="id"></div>
<img id="icon_img">
you can use jQuery .html() or .text()
For example:
var json = {"id" : "74"};
$( "#content" )
.html( "<span>This is the ID: " + json.id + "</span>" );
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
<div id="content"></div>
</body>
</html>
Just use some simple JavaScript parsing:
const jsonData = {"dataStore":"[{\"delete_flag\":\"false\",\"id\":\"74\",\"icon_img\":\"img/a5.jpeg\"}]"};
const parsedData = JSON.parse(jsonData.dataStore)[0];
document.getElementById("delFlag").textContent = "Delete Flag: " + parsedData["delete_flag"];
document.getElementById("id").textContent = "ID: " + parsedData["id"];
document.getElementById("img").textContent = "Image: " + parsedData["icon_img"];
<p id="delFlag"></p>
<p id="id"></p>
<p id="img"></p>
Note that you can't parse the full object jsonData because it's not JSON - only the data inside it is JSON.
I've upvoted the other answers, but maybe this will help someone else. On your ajax success function, do something like this:
success: function(data){
// console.log('succes: '+data);
var delete_flag = data['delete_flag'];
$('#results').html(delete_flag); // update the DIV or whatever element
}
if you got real fancy, you could create a for loop and put all the json variable you need into an array and create a function to parse them all into their proper elements; you could learn this on your own fairly easily.
var data = {
"dataStore": {
"delete_flag": "false",
id: "74"
}
}
$('.flag').html(data.dataStore.delete_flag);
$('.id').html(data.dataStore.id);
span {
color: red
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
Flag: <span class="flag"></span>
<hr />
ID: <span class="id"></span>
Related
I want to make a html which will auto get the information for a *.txt file
something1
something2
something3
and output into this html file
<!DOCTYPE html>
<html>
<head>
<title>List</title>
</head>
<body>
<ul>
#here to output#
</ul>
</body>
</html>
I prefer to use JavaScript. Some help is appreciated.
You have to request the file using AJAX call. Then you need to iterate through each line of response and generate DOM element (li in this case) and input line inside of it. After that insert each li element into your ul list.
You can achieve it using jQuery as you are probably new to JavaScript it's probably the easiest way.
What you need to do is request the file first:
$.ajax('url/to/your/file', {
success: fileRetrieved
});
Now after the file is retrieved jQuery will call fileRetrieved method, so we have to create it:
function fileRetrieved(contents) {
var lines = contents.split('\n');
for(var i = 0; i < lines.length; i += 1) {
createListElement(lines[i]);
}
}
Now for each line from the file function fileRetrieved will call createListElement function passing line of text to it. Now we just need to generate the list element and inject it into DOM.
function createListElement(text) {
var into = $('ul');
var el = $('<li></li>').html(text);
el.appendTo(into);
}
Of course you don't want to retrieve into element each time createListElement is called so just store it somewhere outside the function, it's your call, I'm just giving you the general idea.
Here is an example of the script (without AJAX call of course as we can't simulate it):
var into = $('#result');
function fileRetrieved(contents) {
var lines = contents.split('\n');
for (var i = 0; i < lines.length; i += 1) {
createListElement(lines[i]);
}
}
function createListElement(text) {
var el = $('<li></li>').html(text);
el.appendTo(into);
}
var text = $('#text').html();
fileRetrieved(text);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!-- This element simulates file contents-->
<pre id="text">
fdsafdsafdsa
fdsafd
safdsaf
dsafdsaf
dsafdsafds
afdsa
</pre>
<div id="result"></div>
Try this
<html>
<head>
<title>List</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
</head>
<body>
<ul id="renderTxt_list">
</ul>
<input type="button" id="lesen" value="Read Data" />
</body>
<script>
$(document).ready(function(){
$("#lesen").click(function() {
$.ajax({
url : "testTxt.txt",
dataType: "text",
success : function (data) {
$html = "";
var lines = data.split("\n");
for (var i = 0, len = lines.length; i < len; i++) {
$html += '<li>'+lines[i]+'</li>';
}
$("body ul").append($html);
}
});
});
});
</script>
</html>
You need to request the file first, and then append it to your chosen place in the document.
You can for example use jQuery's get (or any other function like the native fetch), and then inject it into the ul element:
$.get("*.txt").then(x => $("ul").html("<li>" + x.split('\n').join('</li><li>') + "</li>"))
Let's break this solution by steps:
First, we need to request the external file:
$.get("*.txt")
Read about jQuery's get here. Basicly it will request the file you asked for using network request, and return a promise.
In the Promise's then, we can do stuff with the request's result after it is resolved. In our case we want to first break it by lines:
x.split('\n')
split will return an array that will look like this: ["line 1, "line 2", "line 3"].
JS arrays have the join method, which concat them to string while putting the string you want between the items. So after we do this:
x.split('\n').join('</li><li>')
We only need to add the <li> element to the start and end of the string like this:
"<li>" + x.split('\n').join('</li><li>') + "</li>"
Finally we appent it to your chosen element using jQuery's html.
<html>
<body>
<div id="output">hi</div>
</body>
<script>
var link="http://mywp.com/cilacap/api/get_posts/";
var jcontent= JSON.parse(link);
var output=document.getElementById('output');
output.innerHTML=jcontent.id' ';
</script>
</html>
It only shows "hi".
Can someone tell me how to show JSON items such as "id" and "postDate"
with looping but without PHP scripting?
Thanks
Few syntactical errors, below is the right one.
<html>
<body>
<div id="output">hi</div>
</body>
<script>
var link='{"url":"http://mywp.com/cilacap/api/get_posts/", "id":"url_id_01"}';
var jcontent= JSON.parse(link);
var output=document.getElementById('output');
output.innerHTML=jcontent.id + ' ';
</script>
</html>
JSON Data(var link), was not parsable.
JSON Data(var link), didnt contained any attribute called id.
String concatenation in last line(output.innerHTML), was wrong.
Try removing the quotes from:
output.innerHTML=jcontent.id' ';
and change it to:
output.innerHTML += jcontent.id;
Providing that the link is valid it should work now.
You can also write:
console.log(jcontent);
and check if the console displays the value, or any errors that have occurred.
That url is a string, not json.
Use Ajax to get the data ( using jquery)
var link;
$.ajax({
url: "test.html",
}).done(function(data) {
link = data;
});
Then, extract the data;
output.innerHTML=jcontent.id;
Is for the value. You get the key like this:
ES7
Object.entries(jcontent)
.forEach(keyValuePair =>
{
// Push to HTML
var t = document.createTextNode(keyValuePair[0] + ' : ' + keyValuePair[1]); // Create a text node
output.appendChild(t);
});
ES6
Object.keys(jcontent)
.map(key => [key, jcontent[key]])
.forEach(keyValuePair =>
{
// Push to HTML
var t = document.createTextNode(keyValuePair[0] + ' : ' + keyValuePair[1]); // Create a text node
output.appendChild(t);
});
ES5 (Most likely your case)
Use function instead of arrow functions for es5:
Object.keys(jcontent)
.map(function(key){ [key, jcontent[key]] })
.forEach(function(keyValuePair)
{
// Push to HTML
var t = document.createTextNode(keyValuePair[0] + ' : ' + keyValuePair[1]); // Create a text node
output.appendChild(t);
});
Access the value:
keyValuePair[0] // key
keyValuePair[1] // value
Ps
If you want to use the es7 or es6 method, have a look at babeljs
Need to dynamically update contents in a div of main page, based on data fetched from other html page
setInterval( function() {
$.ajax({
type:'GET',
url:"url for status",
success : function(data){
console.log(data);
}
})
},3000);
The content of 'data' printed in developer tool console is:
<html>
<style>
</style>
<head>
</head>
<script>
var conns=[{num:1,
id:1,
Conn:[{type:'ppp',
Enable:1,
ConnectionStatus:'Disconnected',
Name:'CONNECTION_1',
Uptime:0,
ConnectionError:'TIME_OUT',
..............
}]
},
{num:2,
id:2,
Conn:[{type:'ppp',
Enable:1,
ConnectionStatus:'Disconnected',
Name:'CONNECTION_2',
Uptime:0,
ConnectionError:'TIME_OUT',
..............
}]
}]
</script>
</html>
Need to extract the ConnectionStatus, Name and ConnectionError from this content and display it in respective div in main page.
I would recommend using a different transfer type, however, you could use something like this:
function break_out_each_id(){//returns array of indexes where id starts
var i = 0;
id_objs = [];
while data.indexOf('id', i) > -1{
id_objs[i] = data.indexOf('id', i);
i++;
}
return id_objs
}
function find_values(){//pseudo code
use the array of indexes from first index to next index
in that string, do index of each value you are looking for (ConnectionStatus...)
then parse that line after the ':' to get the value.
Do this for each index in indexes array
}
Sorry for the pseudo code, but this post is getting really long. Like I said, it would be MUCH better to just send the response as JSON (even if it is a stringified version of it). In that case you could just do a simple JSON.parse() and you'd be done.
I have a string which contains this text:
<!DOCTYPE html>
<html>
<head>
<title>ExtractDiv test</title>
</head>
<body>
<p>Apples and oranges</p>
<div id="main">
<ul style="list-style-type: upper-roman">
<li>Äpfel</li>
<li>Birnen</li>
</ul>
</div>
<p>Men and women</p>
</body>
</html>
Now I need a JavaScript function which gives me back a DOM element with a specific ID as a string from this text, for example:
function ExtractElementByIdFromString(HTMLString, IdString)
{
var ExtractedElement = ???(HTMLString, IdString);
return ExtractedElement;
}
So the RESULT of this function in this case would be:
<div id="main">
<ul style="list-style-type: upper-roman">
<li>Äpfel</li>
<li>Birnen</li>
</ul>
</div>
Is this possible?
You can parse an HTML string with the native DOMParser:
var str = "<!DOCTYPE……………" // your HTML string
var doc = new DOMParser().parseFromString(str, "text/html")
Then just use regular DOM methods:
console.log( doc.getElementById("main") )
Note that using a DOMParser is more efficient and safer than inserting the string somewhere in your document's innerHTML, because only the structure will be created — <script> elements won't be executed, images won't be loaded, CSS will no try to apply to it, no rendering will occur, etc.
You can create a temporary element, put the HTMLString as a content to it, then use querySelector to get an element with passed id. Something like this:
function ExtractElementByIdFromString(HTMLString, IdString) {
var result,
temp = document.createElement('div'); // Create a temporary element
temp.innerHTML = HTMLString; // Set the passed string as HTML to the temporary element
result = temp.querySelector('#' + IdString).outerHTML; // Find an element with the passed id
return result;
}
A working demo at jsFiddle.
I have the following code and I want to remove placeholder.
<div class="myclass">
<p>[Sitetile][change this too]someothercontent</p>
</div>
and I want to change the above markup to this with some event using jQuery:
<div class="otherclass">
<p>changemaincontentchangesomeothercontent</p>
</div>
Create an object with the index named as the part you want to replace (inside the brackets) and assign the value to it. Then use the $.each-function to iterate over the object and replace the values in the html with the one from the object. After that assign the new html-string to your element.
var change = {
'Sitename': 'yahoo.com',
'Sitetile': 'changemaincontent',
'change this too': 'change'
};
var $elem = $('.myclass > p'); //cache the element
var html =$elem.html(); //get the html-string
$.each(change, function(index, value){ //iterate over the object
html = html.replace('[' + index + ']', value); //replace the values
});
$elem.html(html); //assign the new html-string
Demo
Reference
.replace()
$.each()
.html()
you need to put someothercontent in <span>
HTML
<div class="myclass">
<p>
maincontent
<span>someothercontent</span>
</p>
</div>
Script
$('.myclass').find('a').text('changemaincontent');
$('.myclass').find('span').text('changesomeothercontent');
Demo
You can try some thing like this !!!
<<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<div id='link'><a href='javascript:open_fun()'>OPEN</a></div>
</body>
</html>
<script type="text/javascript">
function close_fun() {
document.getElementById('link').innerHTML = "<a href='javascript:open_fun()'>OPEN</a>";
}
function open_fun() {
document.getElementById('link').innerHTML = "<a href='javascript:close_fun()'>CLOSE</a>";
}
</script>
Hope this helps !!!