|
JavaScript - Reading External Text File
Hey guys,
I'm writing a script and I've encountered a problem.. I have a txt file with many words, each word in a different line. For example: the file words.txt contains: word1 word2 word3 word4 word5 I need to load the content of the file into a variable in my script. I prefer that all the words will be in the same variable with line breaks, but if you'll figure out a way to put it in an array, it's ok too. I really don't know how to do it, and I tried to google but didn't understand.. By the way, I don't want to change the txt file to js file, I need it to remain txt.. Can anybody help me with that? Thanks Alot, Ran Similar TutorialsDear frnd I wanna read on html page , and i have script : " [I]<html> <head> <script type="text/javascript" language="javascript"> function Read() { var Scr = new ActiveXObject("Scripting.FileSystemObject"); var CTF = Scr .OpenTextFile("C:\\123.txt", 1, true); data = CTF .ReadAll(); document.write("<pre>" + data + "</pre>"); CTF .Close(); } </script> </head> <body onLoad="Read()" > </body> </html> [I] " But as its using activex control not allowing in all browser . Have you any other way with pure js to read the file contains ? or allowing activex in all browser ? Somebody had posted this query on how to read text files using JavaScript.......can't find that post now... Anyways, though it's not possible to read text-files using JavaScript it is possible to read XML files using it. Here is an XML based JavaScript Ticker http://www.dynamicdrive.com/dynamicindex2/xmlticker.htm It works only on browsers supporting XML (IE) Enjoy! Hi all, How can i read CSV data from the text file using Java Script.Please give me the script for the problem. Thanx, Nari Hi I have written the following code to read contents of a text file using FileReader object of HTML 5 for Google Chrome. Quote: <script> function handle_files(files) { var i; if (checkBrowser("Chrome")) { for (i = 0; i < files.length; i++) { file = files[i]; var reader = new FileReader(); ret = []; reader.onload = function (e) { console.log(e.target.result) } reader.onerror = function (stuff) { console.log("error", stuff) console.log(stuff.getMessage()) } text = reader.readAsText(file[i]); alert(text); } } } </script> ---------------------- <input type="file" multiple="multiple" onchange="handle_files(this.files)"> Unfortunately, the variable text always displays as undefined. Everything above the line text = reader.readAsText(file[0]); works fine. How can I fix it?. Or is there any other solution to read a text file using HTML5/JavaScript on Chrome? Thanks in advance. I have a Java Script that displays a Daily Affirmation on a webpage from an array of 365 Affirmations within the same html webpage file. This makes the html file size way too large. So I would like for the java script to read the array from an external text file on the same website server. Please provide me the Code to insert within my script which will read the array from an external text file - and also the format that the array of 365 lines must be typed into the external text file. I am not a Javascript Programmer - and know nothing about Javascript, so please write your reply at my (lack of) knowledge Level. Thank you in advance! Here is the code I am using. <script language=javascript> <!-- Date.prototype.getDOY = function() {var onejan = new Date(this.getFullYear(),0,1); return Math.ceil((this - onejan) / 86400000);} var today = new Date(); var DOY = today.getDOY(); var HL=new Array() //Configure the following array to hold the 365 HLs for each day of the year HL[1]='HL 1 goes here' HL[2]='HL 2 goes here' HL[3]='HL 3 goes here' // Jump to Day 224 of the year for this example only HL[224]='I am surrounding myself with positive and supportive people. When I nurture relationships that give me energy and enjoyment, I mirror my beliefs that I deserve such gifts.' HL[225]='Today I affirm my own worth and value, and discover that the world agrees with me.' HL[226]='I am sowing seeds based on a healthy belief in my own self-worth. My life is flourishing with growing love, contentment, and exciting possibilities.' HL[227]='HL 227 goes here' HL[228]='HL 228 goes here' // Jump to last HL for Day 365 of year - for this example only HL[365]='HL 365 goes here' document.write(HL[DOY]) //--> </script> i am thinking of using a xml file as a data base for example , the xml file stores a list of reference numbers which is allocated to a url or a name such as 0123456789 and i have a text box on a webpage and the user types in a reference number and the javascripts reads the xml file to check if its a valid reference number i.e a registered number i am new to working with xml etc... so would be nice to have a little help here EXAMPLE <DATA> <REF> <0123456789>JOE</01234567890> <1111111111>www.google.com</1111111111> </REF> </DATA> id like it to read the specific data thats contained within the tag such as 0123456789's tag = JOE Hi I'm reading a text file, manipulating the string that I've read, and then writing to a new text file called temp. The error that I am getting is basically reading past the end of the file. function SpaceFileEntries() { fso = new ActiveXObject("Scripting.FileSystemObject"); filename = "NDELPROF.txt"; path1 = document.getElementById("lblDataOutputDirectory").innerText + "\\" + filename; path2 = document.getElementById("lblDataOutputDirectory").innerText + "\\temp.txt"; s = fso.OpenTextFile(path1); j = fso.CreateTextFile(path2 , true); do { text = s.readLine(); partOne = text.substring(0,34); lastPart = text.substring(35, 54); space = " "; j.write(partOne); j.write(space); j.writeline(lastPart); } while ( text != null ) s.Close(); j.Close(); } Can someone please help me find this bug in the code. I know it's got to do with the while statement, but can't think or find good alternatives. Thanks. Daniel Hi I have a large'ish project under development. The code below distills the problem I am having. In essence, I am trying to read in an XML file. It appears to load okay but when I try to count how many there are of a certain tag (The "Team" tag) I am told that there are zero. This is despite being told that that file loads okay (as the callback function is called). Javascript and the xml file is below. I hope that it is easy to follow. When the page is loaded, the initialize function is called. I first check my browser as I only need this to work on a Mozilla browser (I am using Mozilla Firefox 3.6.3). I then load the xml file and the callback function (fileLoaded) is called. I then try to find out how many "Team" tags I have, but get the message that there are zero. Sorry if this is a simple question but I have spent the best part of yesterday trying to get this to work. Any help would be appreciated. Thx G === javascript === Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<script type="text/javascript">
// Global variable so that everything can access it
var xlmDoc;
function initialize() {
// This function gets called when the page loadds
browserCheck();
xmlDoc=document.implementation.createDocument("", "doc", null)
xmlDoc.load("small.xml"); // This file is shown at the end of this document, but it is a separate xml document
xmlDoc.onload = fileLoaded;
} // End of initialize
function fileLoaded() {
// Called when file is loaded (this does get called as expected)
alert("File loaded");
var teams = xmlDoc.getElementsByTagName("Team");
var count = teams.length;
alert("no of Teams: " + count); // This displays zero - WHY???
} // End of fileLoaded
function browserCheck() {
// START: This function just checks that I am using a Mozilla browser (I am)
var moz = (typeof document.implementation != 'undefined') && (typeof document.implementation.createDocument != 'undefined');
if(moz) { alert("Mozilla"); }
else {alert("Not Mozilla"); }
} // End of browserCheck
</script>
</head>
<body onload="initialize()">
</body>
</html>
=== xml file === Code:
<Root>
<Team>
<Type>GLF</Type>
<Name>Verulam</Name>
<Postcode>AL1 1JG</Postcode>
<Page>693</Page>
</Team>
<Team>
<Type>RFU</Type>
<Name>London Manx RFC</Name>
<Postcode>AL1 2DJ</Postcode>
<Page>704</Page>
</Team>
<Team>
<Type>RFU</Type>
<Name>University of Hertfordshire RFC</Name>
<Postcode>AL10 9AB</Postcode>
<Page>729</Page>
</Team>
</Root>
Hi, I'm new to JavaScript and I'm having a bit of trouble understanding something that seems relatively simple. When I make changes to CSS in JavaScript using '.style' I'm changing the attribute values of inline CSS. Can I use JavaScript to change the attribute values of rules in an external CSS file? I have no CSS in my html and would like to know if I can grab the values of attributes in an external CSS file using JavaScript. Thank you. Hey all, I'm fairly new to JavaScript. I learned PHP and now I'm creating a user registration and login system for an application I'm making and I decided I wanted to give JS a try. I'm trying to make a form validation function that will be called when I press the submit button on the form but I want to use an external js file to store all my custom functions. I have the OnClick event in the button with the call to my function inside of that. But where and how on the page to I reference my external file so that the button can call the function? Thanks guys! Hello Guys, I have a question here.. I have a scroller on my pages that basically reads a text file and displays.. The problem that I am having is it doesn't update until I reload the page(even though the .txt file updates about every 3 minutes).. I would like it to update when the file has been changed.. Here is my page. PHP Code: <link rel="stylesheet" href="../../css/li-scroller.css" type="text/css"> <script src="../../js/jquery.li-scroller.1.0.js" type="text/javascript"></script> <script type="text/javascript" src="../../jquery-1.6.1.min.js"></script> <script type="text/javascript"> $(function(){ $("ul#ticker01").liScroll(); }); </script> <?php $file = file_get_contents ('playingnow.txt'); ?> <div class="scrollpos"> <ul id="ticker01"> <li><a href="#"><?php Echo $file;?></a></li> <!-- eccetera --> </ul> </div> What can I add to make it go out and reload just the div not the entire page? Please advise.. I have an issue with my javascript files loading (i.e. checking the source code of the page after having loaded yields working links to my external files and the JQuery loading for sure after running some test), but calling a function from my javascript file works in no way shape or form. For example, one test I was running was: From my .js file Code: $("p").click( function() { $(this).hide(); } )
This will work on a standalone page when I test it (not loading from external .js file), but not in the page I need to get my scripts running on. Hello everybody, I am currently working on displaying KML-values of ElementTags within my KML File. I already integrated the KML file as an overlay to my Google Map. But how am I able to parse the GGeoXml-object or how am I able to parse external ("http://www.myexample.org/polygons.kml" instead of just "polygons.kml") XML-files? At the moment my code for loading the geoxml file looks like this: Code: function initialize(kmlFile) {
if (GBrowserIsCompatible()) {
var map = new GMap2(document.getElementById("map_canvas"));
map.setUIToDefault();
map.setCenter(new GLatLng(53.763325,-2.579041), 9);
// ==== Create a KML Overlay ====
if(!(kmlFile==null)){
//check if it doesnt start with "http://"
if(!(kmlFile.startsWith("http://"))){
kmlFile = "http://" + kmlFile;
$('kmllink').value = kmlFile;
}
var kml = new GGeoXml(kmlFile);
//add Overlay to the googlemaps window
map.addOverlay(kml);
//$('subject').value = "SUBJECT";
//$('content').value = "CONTENT";
kml.gotoDefaultViewport(map);
// Store center and zoom as properties of the object kml
var centerKML= kml.getDefaultCenter();
var zoomKML = map.getZoom();
map.panTo(centerKML);
map.setZoom(zoomKML);
}
}
}
And for parsing local XML-files this code works already: Code: function loadXML()
{
if (window.XMLHttpRequest)
{
xhttp=new XMLHttpRequest();
}
else // Internet Explorer 5/6
{
xhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xhttp.open("GET","test.kml",false);
xhttp.send("");
//xmlDoc=xhttp.responseXML;
xmlDoc = xhttp.responseXML;
var placemark=xmlDoc.getElementsByTagName("Placemark");
alert(placemark[0].getElementsByTagName("name")[0].childNodes[0].nodeValue);
ajaxLoader("http://www.zki.dlr.de/mod/ext/fireModis/yesterday_en.kml","Placemark");
}
My question: Is there any way to integrate parsing external xml files in any of these two functions? Best regards, TsEMaNN Hi I'm trying to call a external .js file that contains a function from a webpage, but haven't been able to discover how to reference the function. First, the function: Code: function biggestOfTwo(valueOne, valueTwo)
{
var big;
if(valueOne > valueTwo)
{
big = valueOne;
}
else
{
big = valueTwo;
}
return big;
}
... and the xhtml calling it... Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>An XHTML 1.0 Strict standard template</title>
<meta http-equiv="content-type"
content="text/html;charset=utf-8" />
<script src="compare.js" type="text/javascript" />
</head>
<body>
<script type = "text/javascript">
var dataInput1;
var dataInput2;
dataInput1 = prompt("Enter the first number to be compared");
dataInput2 = prompt("Enter the second number to be compared");
alert("The biggest value is " + biggestOfTwo(dataInput1, dataInput2));
</script>
</body>
</html>
According to the book Beginning JavaScript 4th Edn, this should work - why isn't it? Jenny Hi guys. I've made a html file with three lists to populate different pages of my site. Then i've called the html with SSI. let me show the code the HTML with the list's Code: <div id="list_box"> <ul class="list"> <li><a href="#">item01</a></li> <li><a href="#">item02</a></li> <li><a href="#">item03</a></li> <li><a href="#">item04</a></li> <li><a href="#">item05</a></li> </ul> </div> <div id="list_box"> <ul class="list"> <li><a href="#">item06</a></li> <li><a href="#">item07</a></li> <li><a href="#">item08</a></li> <li><a href="#">item09</a></li> <li><a href="#">item10</a></li> </ul> </div> <div id="list_box"> <ul class="list"> <li><a href="#">item11</a></li> <li><a href="#">item12</a></li> <li><a href="#">item13</a></li> <li><a href="#">item14</a></li> <li><a href="#">item15</a></li> </ul> </div> the HTML with the list loaded Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<style type="text/css">
<!--
#list_box {
height:100%;
width: 100%;
padding-top: 15px;
padding-left: 30px;
padding-right: 30px;
padding-bottom: 20px;
background-color: #cccccc;
overflow: hidden;
}
ul.list li {
list-style-type: none;
text-align: left;
text-decoration: none;
}
.list a:link,
.list a:visited {
font-family: "Courier New", Courier, monospace;
font-size: 12px;
line-height: 15px;
color: #036;
text-decoration: none;
text-align: left;
font-weight: bold;
font-style: normal;
}
.list a:hover{
font-family: "Courier New", Courier, monospace;
font-size: 12px;
line-height: 15px;
color: #ffffff;
text-decoration: none;
text-align: left;
font-weight: bold;
font-style: normal;
}
-->
</style>
</head>
<body>
<div id="list_box">
<!--#include file="list.html" -->
</div>
</body>
</html>
the zip with the sample I've made load_external.zip I wanted to ask how can I make an item from the list's to have a different css in the html with the loaded list's. because in each page one of the items (that are all buttons) will be up or should I say active. can someone tell me how can I do this please. Maybe with javascript? thanks in advance Hi, I need some help with a bit of a challenge. I need to allow users to spesify a file stored on their hard drive, read the file and populate a table and eventually a database. I can probably upload the file using <input type='file'> but what then? How do I access the file after this, or is there a better way? Using XMLHTTP gives 'access denied.....' I can not use PHP as the site does not support PHP. For those who know the environment - it's a QuickBase application I need to upload to....... Thanks Nic I have this file: IPToned.js Code: // ==UserScript==
// @name IPToned
// @namespace http://users9.jabry.com/chatleague
// @description IPTorrents Filter Enhancements
// ==/UserScript==
alert("hello world");
I drag and drop it into Firefox (Ubuntu) and it opens it as if it were a txt file. I want it to make the alert so I can get to coding. Any suggestions? Code: <!-- Add-in device.js files are placed here --> <div id="deviceScript"></div> What I have been doing is clearing this out when I select a new (add-in) device and append a script tag with its .src file. I have some vague idea that unhooking an external js file might remove its code from memory. If not is there a way to do so? Functions in different script files have the same name - for example, I use start() to set up each device. It seems that the latest device start() overwrites the one in memory - but I am not sure if overwrite means delete last one or whether there is some horrendous build up of dross going on. Any clarification appreciated. relatively new coder here definitely new to js and I can't figure out how to get this script linked into an external file every time I try nothing shows up. Code: <html>
<head>
<script language="JavaScript1.1">
<!--
var slideimages=new Array()
var slidelinks=new Array()
function slideshowimages(){
for (i=0;i<slideshowimages.arguments.length;i++){
slideimages[i]=new Image()
slideimages[i].src=slideshowimages.arguments[i]
}
}
function slideshowlinks(){
for (i=0;i<slideshowlinks.arguments.length;i++)
slidelinks[i]=slideshowlinks.arguments[i]
}
function gotoshow(){
if (!window.winslide||winslide.closed)
winslide=window.open(slidelinks[whichlink])
else
winslide.location=slidelinks[whichlink]
winslide.focus()
}
//-->
</script>
<title></title>
</head>
<body>
<a href="javascript:gotoshow()"><img src="img1.jpg" name="slide" border=0 width=250 height=250></a>
<script>
<!--
//configure the paths of the images, plus corresponding target links
slideshowimages("img1.jpg","img2.jpg","img3.jpg","img4.jpg","img5.jpg")
slideshowlinks("#","#","#","#","#")
//configure the speed of the slideshow, in miliseconds
var slideshowspeed=3000
var whichlink=0
var whichimage=0
function slideit(){
if (!document.images)
return
document.images.slide.src=slideimages[whichimage].src
whichlink=whichimage
if (whichimage<slideimages.length-1)
whichimage++
else
whichimage=0
setTimeout("slideit()",slideshowspeed)
}
slideit()
//-->
</script>
</body>
</html>
obviously get rid of html tags and <script></script> tags save it as file.js and then <script type="text/javascript" src="file.js"> </script> do i need to break this up into 2 files or something I can't get it to work I'm trying to execute an php file (which is present on an other host) by javascript. I've got three files for this: The javascript that calls the main program (launch.htm): Quote: <html> <script type="text/javascript"> document.write(unescape("%3Cscript src='http://www.mysite.com/reservetest.js' type='text/javascript'%3E%3C/script%3E")); </script> </html> The main program: (reservetest.js) Quote: function goer() { var url = 'test.php'; var pars="x=4&y=3"; makeHttpRequest(url+"?"+pars, thanks); } function thanks(text) { document.write(text); //$("divname").innerHTML=text; } function $() { if (arguments.length == 1) return get$(arguments[0]); var elements = []; $c(arguments).each(function(el){ elements.push(get$(el)); }); return elements; function get$(el){ if (typeof el == 'string') el = document.getElementById(el); return el; } }; function makeHttpRequest(url, callback_function, return_xml) { var http_request, response, i; var activex_ids = [ 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP', 'Microsoft.XMLHTTP' ]; if (window.XMLHttpRequest) { // Mozilla, Safari, IE7+... http_request = new XMLHttpRequest(); if (http_request.overrideMimeType) { http_request.overrideMimeType('text/xml'); } } else if (window.ActiveXObject) { // IE6 and older for (i = 0; i < activex_ids.length; i++) { try { http_request = new ActiveXObject(activex_ids[i]); } catch (e) {} } } if (!http_request) { alert('Unfortunately your browser doesnt support this feature.'); return false; } http_request.onreadystatechange = function() { if (http_request.readyState !== 4) { // not ready yet return; } if (http_request.status !== 200) { // ready, but not OK alert('There was a problem with the request.(Code: ' + http_request.status + ')'); return; } if (return_xml) { response = http_request.responseXML; } else { response = http_request.responseText; } // invoke the callback callback_function(response); }; http_request.open('GET', url, true); http_request.send(null); } goer(); And finally the test file (test.php): Quote: <html><body>just a test</body></html> It works fine when I use all three files on the same host. However when I use launch.htm on an other host (which is the idea behind it) it gives me 'There was a problem with the request (code 0)'. When I change the url variable within reservetest.js to a relative/absolute path it gives me a 'access denied' on http_request.open line. Main idea is to show the user (who puts the code from launch.htm) on his/her website the contents of my test.php file (which retrieves mysql data). I think it's a security issue with the http_request.open line. Is there a way to work around this? Or am I missing something here? I don't want to use an iframe to retrieve information from my other host. |
|||||||