I am trying to get tweets from different zip codes.For doing this, I am using latitude and longitude values for each zip code. So far I want to get 3 tweets for each zip code(I have 2 zip codes), but it is working only for one zip code.
Any suggestion will be appreciated. Thank you in advance!
Here is my code:
<!DOCTYPE HTML>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
<script>
var lat=[41.9716,42.0411];
var lng=[-87.7026,-87.6900];
$(document).ready(function() {
for(var i=1; i<2; i++)
{
$.getJSON('http://search.twitter.com/search.json?q=business&geocode='+lat[i]+','+lng[i]+',5mi&lang=en&callback=?', function(data) {
var data = data.results;
var html = "";
for(var j=0; j<3;j++){
html += "<div style='width:600px;border:solid thin blue'><img src='"+data[j].profile_image_url+"'/><a href='http://twitter.com/" + data[j].from_user + "'>#"+ data[j].from_user + "</a>: " + data[j].text + "</div>";
}
$('.content'+i).html(html);
}); }
});
</script>
</head>
<body>
<div class="content1"></div>
<div class="content2"></div>
</body>
I found 2 problems with your code:
1) If you want to iterate 2 times, your for function should be like this: for (var i = 0; i < 2; i++)
2) You must have in consideration that the function that gets called in $.getJSON runs asynchronously, so when that function gets called the for will have already finished, therefore you can't use the i value with that purpose inside that function.
So, after correcting those 2 things in your code you should be able to get what you want. Try with something like this:
<!DOCTYPE HTML>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
<script>
var lat = [41.9716, 42.0411];
var lng = [-87.7026, -87.6900];
var count = 1;
$(document).ready(function () {
for (var i = 0; i < 2; i++) {
$.getJSON('http://search.twitter.com/search.json?q=business&geocode=' + lat[i] + ',' + lng[i] + ',5mi&lang=en&callback=?', function (data) {
var data = data.results;
var html = "";
for (var j = 0; j < 3; j++) {
html += "<div style='width:600px;border:solid thin blue'><img src='" + data[j].profile_image_url + "'/><a href='http://twitter.com/" + data[j].from_user + "'>#" + data[j].from_user + "</a>: " + data[j].text + "</div>";
}
$('.content' + count++).html(html);
});
}
});
</script>
</head>
<body>
<div class="content1"></div>
<div class="content2"></div>
</body>
</html>
Related
I know there are a lot of similar questions out there. This code is a Frankenstein of a lot of other stack overflow questions. But I am so close I just don't understand the code I've been trying to use an examples very well.
Here is my html page:
<!DOCTYPE html>
<html>
<script src="Scripts.js"></script>
<script>
</script>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"> </script>
</head>
<body>
<p id="demo"></p>
<script>
obj.Blades.forEach(element => {
var name = element.Name + " " + element.Damage;
document.write(name + "<br >");
});
</script>
<input type="button" value="Generate Table" onclick="makeTable()" />
<hr />
<div id="dvTable"></div>
</body>
</html>
And here is the Java Script page:
var jsonStuff = '{ "Blades" : [' +
'{ "Name":"Longsword" , "Damage":"l2d" },' +
'{ "Name":"Dagger" , "Damage":"l3d" },' +
'{ "Name":"Mace" , "Damage":"l4d" },' +
'{ "Name":"Spear" , "Damage":"l5d" } ]}';
var obj = JSON.parse(jsonStuff);
function makeTable(){
//Create a HTML Table element.
var table = document.createElement("TABLE");
table.border = "1"
//Get the count of columns.
var columnCount = Object.keys(obj.Blades).length;
//Add the header row.
var row = table.insertRow(-1);
for (var i = 0; i < columnCount; i++) {
var headerCell = document.createElement("TH");
headerCell.innerHTML = obj.Blades[i].Name;
row.appendChild(headerCell);
}
//Add the data rows.
for (var i = 1; i < obj.Blades.length; i++) {
row = table.insertRow(-1);
for (var j = 0; j < columnCount; j++) {
console.log(obj.Blades[j].Damage);
var cell = row.insertCell(-1);
cell.innerHTML = obj.Blades[i][j];
}
}
var dvTable = document.getElementById("dvTable");
dvTable.innerHTML = "";
dvTable.appendChild(table);
}
This is what it looks like right now:
So I know the problem has to be somewhere in the section of JavaScript commented "add the Data rows". I'm just now sure how to go about it.
I believe your problem is with the line:
cell.innerHTML = obj.Blades[i][j];
You are referring to Blades as if it were a 2-dimensional array, when in fact it is an array of objects. You're going to need to have something like this to avoid the undefined:
cell.innerHTML = obj.Blades[i].Name;
cell.innerHTML = obj.Blades[i].Damage;
I wish to display sum of amount for particular region.
Below is my code to display the data, however I am sure how to add up the amount.
I am able to read csv file an display in html table.
I am new to Javascript. Any help to proceed would be much appreciated
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script type="text/javascript">
function loadFile(o)
{
var fr = new FileReader();
fr.onload = function(e)
{
showDataFile(e, o);
};
fr.readAsText(o.files[0]);
}
function showDataFile(e, o)
{
var getCSVData = e.target.result;
var rows = getCSVData.split("\n");
var html = '<table border="1">';
rows.forEach((data, index) =>
{
html += "<tr>";
var value = data.split(",");
var region = value[1];
var amount =value[3];
if(region=="SA")
{
html += "<td>" + region + "</td>";
html += "<td>" + amount + "</td>"
}
html += "</tr>";
});
html += '</table>';
document.getElementById("data").innerHTML = html;
document.getElementById("data").style.color="blue";
}
</script>
<title> Read CSV file using JavaScript </title>
</head>
<body>
Select file to read <input type="file" onchange="loadFile(this)">
<pre id="data"></pre>
</body>
</html>
You need to create a variable that you use as an accumulator to save the result of the sum, for example:
var sum = 0;
for (i = 1; i <= 10; i++) {
sum += 10;
}
console.log(sum)
Following your idea, you need to create a variable initialized at 0 before forEach and then inside the loop, accumulate its result
NOTE:
1. When you read your .csv file, it is received as a String, so the value of the variable amount is also a String, so before making the sum it should be transformed to a Number type to avoid concatenate
(https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)
Solution:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script type="text/javascript">
function loadFile(o)
{
var fr = new FileReader();
fr.onload = function(e)
{
showDataFile(e, o);
};
fr.readAsText(o.files[0]);
}
function showDataFile(e, o)
{
var getCSVData = e.target.result;
var rows = getCSVData.split("\n");
var html = '<table border="1">';
var sum = 0;
rows.forEach((data, index) =>
{
html += "<tr>";
var value = data.split(",");
var region = value[1];
var amount = value[3];
if(region=="SA")
{
if (Number(amount)) {
sum += Number(amount)
}
html += "<td>" + region + "</td>";
html += "<td>" + amount + "</td>"
}
html += "</tr>";
});
html += '</table>';
html += '<span>' + sum + '</span>';
document.getElementById("data").innerHTML = html;
document.getElementById("data").style.color="blue";
}
</script>
<title> Read CSV file using JavaScript </title>
</head>
<body>
Select file to read <input type="file" onchange="loadFile(this)">
<pre id="data"></pre>
</body>
</html>
I want to convert this simple code that shows a multiplication table from java script ( using notepad++) to asp.net ( using visual studio// web form )
<!DOCTYPE html>
<html>
<head>
<meta charset="windows-1252">
</head>
<body>
<script>
document.write("<table border=\"1px\">");
var i, j;
for (i = 1; i <= 12; i++) {
document.write("<tr><th colspan=\"5\">Table" + " " + i + "</th></tr>");
for (j = 1; j <= 12; j++)
document.write("<tr><td>" + i + "</td>"+"<td>*</td>"+"<td>" + j + "</td>"+"<td>=</td>"+"<td>" + i * j + "</td></tr>");
}
document.write("</table>");
</script>
</body>
</html>
Why should I link an external script write after an internal script as following example
Can anyone tell me why I should use it like this and why it doesn't display anything before the call to the external script ?
<!DOCTYPE html>
<html>
<body>
<div id="id01"></div>
<script>
function myFunction(arr) {
var out = "";
var i;
for(i = 0; i<arr.length; i++) {
out += '<a href="' + arr[i].url + '">' +
arr[i].display + '</a><br>';
}
document.getElementById("id01").innerHTML = out;
}
</script>
<script src="myTutorials.js"></script>
</body>
</html>
I wanted to print this array: photolist into my DIV called: fotolist, but don’t know how to. I want to print the array after it loops through both completely. How do I do this?
<!DOCTYPE html>
<html>
<head>
<script src="jquery-min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
API_KEY = 'YOURAPIKEY'; //INSERT API KEY
USER_ID = '22694125#N02'; //ENTER USER ID
var photolist = [];
$.getJSON('https://www.flickr.com/services/rest/?method=flickr.people.getPhotos&api_key=' + API_KEY + '&user_id=' + USER_ID + '&format=json&jsoncallback=?', function(rest) {
var numPhotos = rest.photos.pages;
for (var u =0; u < numPhotos; u++) {
$.getJSON('https://www.flickr.com/services/rest/?method=flickr.people.getPhotos&api_key=' + API_KEY + '&user_id=' + USER_ID + '&format=json&jsoncallback=?&pages=' + u, function(results) {
for (var m =0; m < results.photos.total; m++) {
photolist.push("https://www.flickr.com/" + results.photos.photo[m].owner + "/" + results.photos.photo[m].id);
}
});
}
});
});
</script>
</head>
<body>
<div id="fotolist">
</div>
</body>
</html>
Use .append if you want to push content into an already existing div. Make sure targetDiv is declared outside the $.getJSON call.
var targetDiv = $('#printDiv');
for (var m =0; m < results.photos.total; m++)
{
targetDiv.append("https://www.flickr.com/" +
results.photos.photo[m].owner + "/" + results.photos.photo[m].id);
}
Push items to an array
Join the items in the array
.append() the items to your target
DEMO
jQuery:
var myList = [];
for (var i = 0; i < 9; i++) {
myList.push('<li>');
myList.push('My name is Agent 00' + i);
myList.push('</li>');
}
$("#target").append(myList.join(''));
HTML:
<ul id="target"></ul>
This will do the trick.
a. Here is a one liner assuming array contains only links:
$("#fotolist").append(photolist.join(" </br> "));
</br> is present to break the lines, if you don't want to break line, just remove that part
b. Paste the code after the for loop.
$.each(photolist, function(){
$("#fotolist").append(this);
});
c. Though the above method will work, we are refreshing the DOM often.
So you need to create a DOM fragment and add all text/html to it and then append it to DOM for performance reasons.
var html = "";
$.each(photolist, function(){
html +=this;
});
$("#fotolist").append(html);
EXAMPLE