I'm building a program that allows me to search a document to see how many times a word appears within that document. I would like to choose which word to search by entering the desired word into a search box that I've built. Currently, If I hard code the word that I'm searching for, it'll search the document and tell me how times it appears. If I try to use the search box to enter a word, I always get a result of 0. I need a way to retrieve the word entered from the search box and use that word as the word that I want to check.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>WordBubble</title>
<link rel="stylesheet" type="text/css" href="wordbubble.css">
<script type="text/javascript" src="jquery-1.10.2.js"></script>
</head>
<body>
<div id="search">
Search Word: <input type="search" name="Wordsearch" size="35">
<button type="submit" class ="searchme">Search</button>
</div>
<script type="text/javascript">
$(document).ready(function(){
$(".searchme").click(function(){
var myWord = $ (this).text();
findDuplicates();
});
});
// ajax call to get comments document
function findDuplicates (myWord) {
$.get( "comm.txt", function( text ) {
words = text.split(' '),
sortedWords = words.slice(0).sort(),
duplicateWords = []
for (var i=0; i<sortedWords.length-1; i++) {
if (myWord == sortedWords[i]) {
duplicateWords.push(sortedWords[i]);
}
}
$( "p" ).html(duplicateWords.length);
});
}
</script>
<p></p>
</body>
</html>
In your click-handler you retrieve the searchstring from the button instead from the input.
$(document).ready(function(){
$(".searchme").click(function(){
// get the word from the input
var myWord = $('input').val();
findDuplicates(myWord);
});
});
Related
<html>
<head>
<!--Wei Wu Section A-->
<title>This is the 4th extra credit</title>
</head>
<body>
<script type="text/javascript">
function toUpper(stringFromUser){
var arrayOfStrings = [];
arrayOfStrings = stringFromUser.split(" ");
for(i=0;i<arrayOfStrings.length;i++){
//if (char(arrayOfStrings[i][0]) <= 122 && char(arrayOfStrings[i][0]) >= 97){
if (arrayOfStrings[i].charCodeAt(0) <=122 && arrayOfStrings[i].charCodeAt(0) >=97){
arrayOfStrings[i] = arrayOfStrings[i].charAt(0).toUpperCase() + arrayOfStrings[i].slice(1);
}
}
var afterTitle = "";
afterTitle = arrayOfStrings.join(" ");
document.getElementById('afterChange').innerHTML = afterTitle;
}
</script>
<p>Enter a sentence and I will turn it into Title Case!<input id="textInput" value=""></p>
<button onclick="toUpper(textInput.value)">Change case!</button>
<p id="afterChange"></p>
</body>
</html>
Hi thank you in advance for all your help. this is one of the code that I was working on. the purpose of this code is to "Title Case" the first letter of each word in the sentence. My code runs quite well after some work.
But I have one question: On line 14, I was trying to directed assign the uppercase letter to arrayOfString[i][0], it didn't work. Instead, I changed the whole element, AKA the element in the array. Why didn't that work? Thank you very much!
Strings are immutable - you cannot change individual characters in them by assigning to their [] indicies. So, you have to slice them apart and put them back together, as you did.
You can use this code to Title Case
<html>
<head>
<!--Wei Wu Section A-->
<title>This is the 4th extra credit</title>
</head>
<body>
<script type="text/javascript">
function toUpper(stringFromUser){
var afterTitle = toTitleCase(stringFromUser);
document.getElementById('afterChange').innerHTML = afterTitle;
}
function toTitleCase(str)
{
return str.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
}
</script>
<p>Enter a sentence and I will turn it into Title Case!<input id="textInput" value=""></p>
<button onclick="toUpper(textInput.value)">Change case!</button>
<p id="afterChange"></p>
</body>
</html>
So here is the problem.I want user to enter number of index in text box for array. After taking index i want user to enter value from a prompt box to store in that array but that prompt box is coming over and over again and i have to click on button every time to take input
Here is the code
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>
<body>
<label> Enter Number of Records </label>
<input type="text" id="t1">
<input type="button" value="Enter" onClick="record()">
<h1 id="demo"></h1>
<script src="script.js" type="text/javascript"></script>
</body>
</html>
Java Script:
var data = document.getElementById("t1").value;
function record(){
var crap = new Array(data);
for(var i=0;i<crap.length;i++){
crap[i] = prompt("Add something in my array","");
document.getElementById("demo").innerHTML += crap[i]+"<br>";
}
In your case, you are retrieving data outside the function. Thus its value will be 'undefined' and the crap will became the array of one value that is undefined. So crap.length will be always 1.
Try this:
function record(){
var data = document.getElementById("t1").value;
var crap = []
if(crap != undefined)
for(var i=0;i<data;i++){
var tmp = prompt("Add something in my array","");
crap.push(tmp);
document.getElementById("demo").innerHTML += crap[i]+"<br>";
}
}
Enjoy coding ....
Try this,This will solve your issue.
You are just declaring an array named crap, and you are trying to get the crap.length even before the array is filled, so you are getting the issue. Since data has your value try looping with data value.
function record(){
data = document.getElementById("t1").value;
var crap = new Array(parseInt(data)); // you should take data here, since crap is empty at this point.
console.log(data)
for(var i=0;i<data;i++){
crap[i] = prompt("Add something in my array","");
document.getElementById("demo").innerHTML += crap[i]+"<br>";
}
}
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>
<body>
<label> Enter Number of Records </label>
<input type="text" id="t1">
<input type="button" value="Enter" onClick="record()">
<h1 id="demo"></h1>
<script src="script.js" type="text/javascript"></script>
</body>
</html>
Please run the code snippet and check the answer.
I am testing putting a text editor on my page and storing it as part of a JSON object.
HTML
<!DOCTYPE html>
<html>
<head>
<script src="http://tinymce.cachefly.net/4.0/tinymce.min.js" type="text/javascript"> </script>
<script type="text/javascript">
tinymce.init({
selector: "textarea"
});
</script>
<link rel="stylesheet" href="/jquery.mobile-1.3.2.min.css"/>
<script src="/jquery-1.9.1.min.js"></script>
<script src="/jquery.mobile-1.3.2.min.js"></script>
</head>
<body>
<form method="post" action="formSubmit.js">
<textarea name ="editor"></textarea>
<p><input type="submit" value="Submit"></p>
</form>
</body>
</html>
JS
$(document).ready(function () {
var text = $("editor").val();
var name = "project name";
var id = 5;
var item = new item(name, text, id);
var itemArray = localStorage.items;
if (itemArray == undefined) {
itemArray = [];
} else {
itemArray = JSON.parse(itemArray);
}
itemArray.push(item);
localStorage.items = JSON.stringify(itemArray);
});
I want to be able to store item in a JSON object. When I run this I receive a "not-well formed" error at line 1 of the Javascript. It's a very simple program I'm running and can't seem to pinpoint what is causing the error. Is the JSON done incorrectly or are scripts in my HTML header causing issues?
$("editor") is looking for an html tag called 'editor'. you probably want to attach an id attribute to your and do $('#editor')
i have written a jsp code with values coming from other jsp and i need to remove the special characters in the string.But iam not able to remove special characters. Please help
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
<script>
function change(chars){
var dchars=document.getElementById("chars").value;
dchars = dchars.replaceAll("!##$%^&*()+=[]\\\';,/{}|\":<>?", '');
document.getElementById("chars").innerHTML=dchars;
}
</script>
</head>
<%
String res=request.getParameter("tes");
%>
<body onload="change(chars)" ><script>
change(res)
</script>
<div id="chars"> <%=res%></div>
</body>
</html>
There is no "value" for div elements. You need to use innerHtml insted:
document.getElementById('chars').innerHTML = dchars;
try this....
document.getElementById('chars').innerHTML = dchars; //div has no value..
Assuming by special characters, you mean anything that's not letter, here is a solution:
alert(dchars.replace(/[^a-zA-Z ]/g, ""));
OR
alert(dchars.replace(/[^a-z0-9\s]/gi, '')); //will filter the string down to just alphanumeric values
The problem with using innerHTML is that certain characters are automatically converted to HTML entities such as & which is converted to &
function cleanCharsText(){
var el = document.getElementById("chars");
var txt = el.innerText || el.textContent;
el.innerHTML = txt.replace( /[!##$%^&*()+=\\[\]\';,/{}\|\":<>\?]/gi, '');
}
However if you have the following <span> text </span> inside your chars element the html span tags will be removed when you run the above function as we are only extracting the text.
I have a page with more than 200 links with this kind of formatting.
<h1>
Somelink
some text that explain the meaning of the link.
</h1>
Now, to make it bit easy to search through this link, i have put a search box.
My requirement is to search through all this tag and find the links that are relevant to
the search box and hiding rest of the link.
How to do it in javascript ? ( i know basic javascript/jquery stuff but How to do full text search ? ) I do not required sorting according to relevant, just filter and show hide is good enough.
You can enumerate all h1 tags get inner html and do indexOf , or you can use jQuery it has a custom made contains functionality, which returns the elements having given text.
Here is an example copied from jQuery docs
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
</head>
<body>
<div>John Resig</div>
<div>George Martin</div>
<div>Malcom John Sinclair</div>
<div>J. Ohn</div>
<script>
$("div:contains('John')").css("text-decoration", "underline");
</script>
</body>
</html>
Hopefully you find this useful. It probably is not the elegant or most efficient but it will let you enter multiple search terms and gives partial matches (which may or may not be wanted). The way I have made it when you click the search button it will hide all other elements except ones matching either of your search terms but you can modify this to do whatever you want with the elements in the results Array. I don't recommend using this exactly but hopefully it will give you a point of reference on how you may want to implement your own (if you choose to go with a solution other than the quicksearch).
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script type='text/javascript' language='javascript' >
$(document).ready(function() {
var links = new Array();
$("h1").each(function(index, element) {
links.push({
text: $(this).text(),
element: element
});
});
$("#searchButton").click(function() {
var query = $("#searchBox").val();
var queryTerms = query.split(' ');
var results = new Array();
for(var i = 0; i < queryTerms.length; i++) {
for(var j = 0; j < links.length; j++) {
if (links[j].text.indexOf(queryTerms[i]) > -1) {
results.push(links[j].element);
}
}
}
$("h1").each(function(index, element) {
this.style.display = 'none';
});
for(var i = 0; i < results.length; i++) {
results[i].style.display = 'block';
}
});
});
</script>
</head>
<body>
<p>
<input id="searchBox" type="text" />
<input type="button" id="searchButton" value="Search" />
</p>
<h1>
Somelink1
asdf
</h1>
<h1>
Somelink2
ssss
</h1>
<h1>
Somelink3
3333
</h1>
<h1>
Somelink4
232323
</h1>
<h1>
Somelink5
fffff
</h1>
</body>
</html>
I found one.
http://github.com/riklomas/quicksearch
which uses regex for search.