I am fairly new to javascript and I am wondering how I would load a text file that has a JSON formatted array stored in it?I can pass the array directly to the page via php though I want to be able to store the data and save on calls to the database and of course load the data dynamically to the page.
View 1 RepliesI am retrieving a string in json format from a php file and assigning it to a var in javascript
string = {"name": "piet", "id": "45"}
how do i convert this string into a real json object?
How I can convert a string to a json array.
start code:
The problem is that .css treats snip[1] as a string but I need it to handle it as a json array.
Bad: .css
Good: .css
i have a Json file which is called/summoned from a jscript file which is in turned called from an html file. So the html calls the jscript and then the script calls the json file.
The problem is that only the text of my json file (the other text displays cool) displays incorrectly spanish characters with accents and stuff. So I dont know how to set the charset of the json file. I dont know if i have to do it in the json file or in the jsprit file i already set the charset of the jscript on my html file like this:
[Code]...
I have a json string/ javascript list that I would like to save in jcookies
[Code]...
I am trying to create a playlist from the youtube data api using jquery's getjson method. I can get other nodes from the feed, but I can't get the media title for some reason. This is the feed:and this is the code that I'm using:
<script type="text/javascript">
$(document).ready(function() {
$.getJSON('http://gdata.youtube.com/feeds/users/armaniexchange/uploads?alt=json-in-script&
[code]....
I am trying to create a script to randomly assign recipients to givers for a Secret Santa.he participants are placed into groups. A giver cannot be assigned a recipient with whom he is grouped. I want to return all of the assignments in a table. I have made the following script. When I run it, it seems to get stuck in a loop. Any ideas why this might be? If you have any questions about how I want this thing to run, feel free to ask.
<html>
<head>
<script type="text/javascript">
[code]....
I am very new to javascript and programming and I need a little direction. I have working a javascript that reads the value of radio buttons and writes them to a text file. My code is at [URL]. The text file has the following format:
Name|Email|Location|Comment|5|5|5|3|2|1|4|5|3|2|0
Name2|Email2|Location2|Comment2|1|3|0|3|2|0|2|5|1|2|3
What I need to do is have javascript read the text file (c: estfile.txt) and put each section of information (name, comments, numbers, etc.) into an array. Then, add the number from each columns up. For example, the first number from Name and the first number from Name1 is 5 +1 = 6. This sum is then added to another array that can be printed on the screen. I know this is a lot of information.
I have some Javascript which says this:
Now that is fine when the text is only one line long. Suppose it's longer? What I want to do is have Javascript give the variable contentString its text from a hosted text file in a similar manner to the way Javascript can insert more Javascript using a hosted .js file.
I illustrate what I need to do using some "dummy" javascript:
For a personal project, I want to see if I can make a Greasemonkey userscript (or eventually a Firefox add-on) to list how far a certain ad on Craigslist is from where the user is (by the city listed beside the ad). My question is really just looking for ideas on how I can parse out the city's from the webpage text (with javascript or some other language?). Not even sure if this is possible.
The city's or ads aren't their own div elements or anything (nothing can ever be so simple) - but the city's listed are formatted by <font size="-1"></font>, and each ad is in it's own paragraph tag.. maybe I can use that somehow?
I'm not sure why I'm having problems with this but if I try to retrieve the
value of a readonly text form I get back that the object is undefined.
The reason the text is readonly is because it's a date which I set via a
calendar javascript program (associated with a button) only so the user
can't put something silly in requiring validation.
The form send the data correctly when submitted it just doesn't seem to be
able to be read.
how Id be able to retrieve the text "Text I want to retrieve".
[Code]...
I am using the SVG plugin. I have a simple test and I am unable to retrieve the x and y values of a text object.
$('#objID1', svg.root()).attr('x')
This returns as empty. Where as:
$('#objID1', svg.root()).attr('fill')
successfully returns the fill value.
HTML code:
<html xmlns="[URL]">
<head><title>SVG test</title>
<script type="text/javascript" src="js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.8.7.custom.min.js"></script>
<script type="text/javascript" src="js/jquery.svg.js"></script>
<script type="text/javascript" src="js/jquery.svgdom.js"></script>
<script type="text/javascript" src="js/jquery.svganim.js"></script>
<script type="text/javascript" src="js/test2.js"></script>
<style>
#svgCanvas {
width: 200px;
height: 200px;
border: 1px solid #ff0000;
}
#svgAtts {
width: 200px;
height: 200px;
border: 1px solid #ff0000;
}
</style></head><body>
<div id="svgCanvas"></div>
<div id="svgAtts"></div>
</body>
</html>
Javascript code test2.js:
$(function() {
$('#svgCanvas').svg({onLoad: function(svg) {
//code
}}); });
$(function() {
var svg = $('#svgCanvas').svg('get');
var obj = svg.text(50,50,'Some Text',{id: "objID1", fill: "#FF0000", fontFamily: "Arial", fontSize: "24"});});
$(function() {
var svg = $('#svgCanvas').svg('get');
var string = 'fill = ' + $('#objID1', svg.root()).attr('fill') + '<br />';
var string = string + 'font family = ' + $('#objID1', svg.root()).attr('font-family') + '<br />';
var string = string + 'font size = ' + $('#objID1', svg.root()).attr('font-size') + '<br />';
var string = string + 'x = ' + $('#objID1', svg.root()).attr('x') + '<br />';
var string = string + 'y = ' + $('#objID1', svg.root()).attr('y');
$('#svgAtts').html(string);
});
Let's say I have the following JSON string returned from a server-side
process:
{ values: [{"name": "value1", "value": "1"},{"name": "value2",
"value": "0"},{"name": "operand", "value": "/"},{"name": "result",
"value": "NaN"},{"name": "error", "value": "Divide by 0"}] }
I then create a JSON object from it using eval() (tell me if this is
not what should be done).
My question is this...how do I determine (without going through every
single record) if there is a name=error in the values array?
Here's what I do now, it can't be optimum:
var object = eval('{ values: [{"name": "value1", "value": "1"},
{"name": "value2", "value": "0"},{"name": "operand", "value": "/"},
{"name": "result", "value": "NaN"},{"name": "error", "value": "Divide
by 0"}] }');
for (var i = 0; i < object.values.length; i++) {
if (object.values[i].name == 'error') {
//do stuff...
}
}
I thought I'd try object.values.name['error'] of course that didn't
work...
I have been trying to figure out how I could go from an associative array to JSON. Is there a function for this?
View 10 Replies View RelatedI am having trouble converting my multidimensional array to JSON. I have the following code:
var questions = [];
$('.questionContainer').each(function(i) {
questions[i] = [];
questions[i]["question"] = "hey";
[Code]...
I have this array code...
and i wanna to add more items in special values , but doesn't work code...
I'm using Prototype.js and would like to convert the contents of an HTML table to JSON. Converting to an array first is fine too. Any thoughts on this? I haven't seen anyone do anything this....
View 2 Replies View RelatedHow can I adequately parse a JSON response I'm getting from the server, which happens to be an array?
The array I'm getting back is actually this one:
[{"photo":{"created_at":"2011-02-26T18:40:00Z","id":5,"name":"Natalie_Portman.jpg","updated_at":"2011-02-26T18:40:00Z"}},{"photo":{"created_at":"2011-02-26T18:40:14Z","id":6,"name":"scarlett-johansson-.jpg","updated_at":"2011-02-26T18:40:14Z"}}]
I believe this one is valid JSON, but my attempts to parse it are always failing when I do it like this:
success:
function(data, textStatus, xhr)
{
var photos = jQuery.parseJSON(data);
alert(photos);
},
The above code displays 'null', and the documentation says a null occurs when the JSON isn't valid. so, what's going on ?
I need to know the codes to parse as well as access the values in the parsed response.
I've a function build in PHP that return this JSON: [URL]. In the HTML page where this PHP function is called via jQuery AJAX I have this code: [URL], this populate two select as you notice, something like this: [URL], But I need the same but in this way: [URL] value come from Json array position.
View 2 Replies View RelatedI am writing this code
<script type="text/javascript">
$(document).ready(function() {
var obj = jQuery.parseJSON('{"a":"sss","b":"sss","question":"whi?"}');
//alert(obj.question);
});
</script>
How could I know how many objects variable obj has?
Your table-driven application has a MySQL table on the server side and you want a Javascript associative array on the client side to do rapid look-ups.For example: My application uses the value selected from the form’s drop-down menu to choose which other form fields to hide or show. This choice of a 'Long Form' is table-driven from product data in a MySQL table.
Convert the MySQL table to an associative array in JavaScript.I am using the jQuery library to manage the presentation and form validation on the client side and PHP and MySQL on the server side.Since a JavaScript Object is an associative array and the MySQL table is being used as a look-up table (associative array) I use the PHP function json_encode to create a JSON string - JSON is JavaScript Object Notation - on the server which is then evaluated as a JavaScript Object on the client. The two parts (server and client) of the code are listed below.All very straightforward then. So why the blog?This is what I do (here's the PHP code):
do { $key = $row['ProductKind'];
$value = ($row['LongForm'] ? True : False);
$arr[$key] = $value;
[code]...
As a newcomer to jQuery this is a good opportunity to show my appreciation to John Resig and the people that have contributed to the jQuery library ... not forgetting those who have integrated all the MySQL and JSON stuff into PHP. It's all very neat ... when you get to understand it!You could just eval(data) to turn the JSON string into a JavaScript Object (a.k.a. associative array), but JSON.parse protects your code against evaluating malicious scripts that could be embedded in the JSON string. This function is found in the json2.js downloadable until included in native browser JavaScript engines.The PHP Booleans translate automatically into JavaScript Boolean types.
[Skip this: My application has a MySQL table of product categories that tell me whether I need to present the administrator with a long form or a short form in the HTML. So, as products are added over time, I want to the administrator to choose whether a new product category can take the short form plus some default values or will require the explicit input of all product values in the long form. As the administrator assigns a category to a new product - and changes his mind half a dozen times - I don’t want to keep on going to the server to do the look-up but want to have the table in Javascript to keep the form presentation responsive. Also, the MySQL tables are on a third party’s server remote from the web server.]
I want to convert multidimensional array to JSON string.
Example:
Var arrFile=new Array();
arrGrid("frmTask")=new Array();
arrGrid("frmTask").push("grdTask");
arrGrid("frmTask").("grdTask")=new Array();
[Code].....
I want to convert this array to JSON string and to get the JSON string back as an Array.
what i am trying to do is retrieve a json file from a link on a server and then edit it locally.How can i do this on javascript or ajax?
View 6 Replies View RelatedIs it possible to "properly" delete a single element from an array /object?This seems strange:
javascript Code:
Original
- javascript Code
alert(searchlist.length); // 4
[code]....
Do I have to overwrite the old object with a manually created new object?
I run an ajax request and return a json array. There is more in the json array than there is fields on the page. I want to cycle through text fields and find their NAME and match that to the json array and fill in the value.The names of the fields and the names in the json array are the same.
Code:
<script type="text/javascript">
function loadIntake(){
var client = <?php echo $id ?>;
[code]....