$(this).hide() hides containers it shouldn't - javascript

I have this little piece of code that filters through a list of results and hides the divs that don't match. I am writing this for a PhoneGap iOS application. It works fine on Android, but on iOS for some reason it hides the entire search field as well after typing a few characters, not just the results.
Any idea why? I've stripped it down to almost only the HTML code and jQuery and it's still happening. I tried commenting out the $(this).hide(); part and it stops hiding the search field, so I assume somehow that's the culprit, but I can't figure out why or how to fix this. Been at it for 10 hours straight. Any ideas? Maybe I can target the results some other way?
$('#box_search').keyup(function() {
var valThis = $(this).val().toLowerCase();
if (valThis == "") {
$('#listing-results > .listing_container').show();
} else {
$('#listing-results > .listing_container').each(function() {
var text = ($(this).find('.listing_results_text_name').text() + $(this).find('.listing_results_text_name').data("alt")).toLowerCase();
if (text.indexOf(valThis) >= 0) {
$(this).show();
} else {
$(this).hide();
}
});
};
});

obviously I cant see the html but sometimes it helps to clean the code and just change the logic slightly
var box_search = function(e){
var myIndex = $(this).val();
val = (!myIndex || myIndex==='')?false:myIndex;
if(!myIndex){
$('#listing-results > .listing_container').show();
return;
}
//
$('#listing-results > .listing_container').each(function() {
var text = $(this).find('.listing_results_text_name').text() +
$(this).find('.listing_results_text_name').data("alt")
text = (!text || text==='')?false:text;
text = text.toLowerCase();
if(text.indexOf(myIndex.toLowerCase()) >= 0){
$(this).show();
return;
}
$(this).hide();
});
} //end of function
$('.box_search').keyup(box_search);

Related

Input is not detecting that it is empty if removing text with "ctrl + a + backspace"

I am doing some easy div filtering with jQuery and input field. It is working, however it is not detecting that it is empty if I remove input using " Ctrl + a + backspace ", in other words if I select all text and remove it. What causes this?
It is not reordering divs back to default if using the keyboard commands but is going back to normal if you backspace every character.
This is how I do it:
$('#brandSearch').keyup(function() {
var valThis = $(this).val().toLowerCase();
if (valThis.length == 0) {
$('.card').show();
} else {
$('.card').each(function() {
var text = $(this).text().toLowerCase();
(text.indexOf(valThis) >= 0) ? $(this).parent().show(): $(this).parent().hide();
});
};
});
Your if block that handles the empty string is not showing the same elements that the else block hides. The else block calls .parent() but the if block does not.
So the else case shows or hides the parent of each .card element, but the if case shows the .card elements themselves—without unhiding their parents. See my comments added to the code (I also reformatted the conditional expression in the else for clarity):
$('#brandSearch').keyup(function() {
var valThis = $(this).val().toLowerCase();
if (valThis.length == 0) {
// Show all of the .card elements
$('.card').show();
} else {
$('.card').each(function() {
var text = $(this).text().toLowerCase();
// Show or hide the *parent* of this .card element
text.indexOf(valThis) >= 0 ?
$(this).parent().show() :
$(this).parent().hide();
});
};
});
Since it sounds like the non-empty-string case is working correctly, it should just be a matter of adding .parent() in the if block so it matches the others:
$('#brandSearch').keyup(function() {
var valThis = $(this).val().toLowerCase();
if (valThis.length == 0) {
// Show the parent of each .card element
$('.card').parent().show();
} else {
// Show or hide the parent of each .card element
$('.card').each(function() {
var text = $(this).text().toLowerCase();
text.indexOf(valThis) >= 0 ?
$(this).parent().show() :
$(this).parent().hide();
});
};
});
This is the kind of situation where familiarity with your browser's debugging tools would pay off big time. The .show() or .hide() methods manipulate the DOM, and by using the DOM inspector you could easily see which elements are being hidden and shown.
In fact, as a learning exercise I recommend un-fixing the bug temporarily by going back to your original code, and then open the DOM inspector and see how it reveals the problem. While you're there, also try out the JavaScript debugger and other tools.
If you use Chrome, here's an introduction to the Chrome Developer Tools. Other browsers have similar tools and documentation for them.
It seems to be working just fine:
$('#brandSearch').keyup(function() {
var valThis = $(this).val().toLowerCase();
if (valThis.length == 0) {
$('.card').show();
console.log("input is empty");
} else {
console.log("input is not empty");
$('.card').each(function() {
var text = $(this).text().toLowerCase();
(text.indexOf(valThis) >= 0) ? $(this).parent().show(): $(this).parent().hide();
});
};
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input id="brandSearch">

JQuery live search exact match

I'm using a live search that I modified to run after pressing enter(I have a very large table and it causes the text entry to lag if done on keyUp) and I'm trying to find out a way to make it an exact search instead of just a similar. The reason being I have a column with store numbers starting from 1 to over 7000, if I type in just '1' I get a whole slew of results. I'm new to JQuery and I've tried to play around with it but I feel like I'm getting no where. Any and all help is appreciated.
Here is the code:
$('#search').keyup(function(e) {
if (e.keyCode == 13) {
$(this).trigger("enterKey");
}
});
$("#search").bind("enterKey", function() {
var value = $(this).val();
$("table tr").each(function(index) {
if (index !== 0) {
$row = $(this);
var id = $row.find("td:first").text();
if (id.indexOf(value) !== 0) {
$row.hide();
} else {
$row.show();
}
}
});
});

Utilizing jQuery Selectors to simplify HTML parser code

This code uses jQuery find() and several if statements to pick out certain text from an HTML document.
I'm trying to remove the if statements and interpret them to jQuery selectors in find(), at the very top line of code. Is this possible? If so, what would the selectors need to be?
$(document).find("a[href^='http://fakeURL.com/']").each(function()
{
var title = $(this).text();
var url = $(this).attr('href');
if(title.indexOf('Re: ') != 0)
{
if($(this).parent().attr('class') != 'quoteheader')
{
if(url.indexOf('topic') == 36)
{
if($(this).parent().attr('class') == 'middletext')
{
console.log(title);
}
}
}
}
});
For the last thing I left, you want to check if the topic is at index 36 ? not sure its possible via the selector, beside that everything went up to the selector (code not tested, should work tho)
$(document).find(".middletext:not(.quoteheader) > a[href^='http://fakeURL.com/']").each(function()
{
if(url.indexOf('topic') != 36)
return;
var title = $(this).text();
if(title.indexOf('Re: ') != 0)
return;
console.log(title);
});

searching in LI using jquery

I am searching in list of 500 li's. using following code. but facing two problems. one when i press backspace very fastly after typing something, it is not captured. and also searching is case sensitive which i dont want. please suggest improvements in below code :
$('#find_question').bind("keyup", function() {
searchWord = $(this).val();
console.log("input length",searchWord);
if (searchWord.length >= 0) {
$('#leftSection li').each(function(i, data) {
text = $(this).text();
if (text.match(RegExp(searchWord, 'i')))
$(this).show();
else
$(this).hide();
});
}
});
Try this
The containsIgnoreCase comes from How do I make jQuery Contains case insensitive, including jQuery 1.8+?
Live Demo
$.expr[':'].containsIgnoreCase = function (n, i, m) {
return jQuery(n).text().toUpperCase().indexOf(m[3].toUpperCase()) >= 0;
};
$function() {
$('#find_question').on("keyup", function() {
searchWord = $(this).val();
$('#leftSection li').hide();
if (searchWord.length >= 0) {
$('#leftSection li:containsIgnoreCase("'+searchWord+'")').show();
}
});
});

autosuggestion box, set focus

Been knocking up a simple suggestion box on an input field.. all working as it should so far except for two issues I can't seem to resolve:
1) when onkeypress event fires, the value of the input box is not correct - it misses off the last character! So for e.g. if you enter 3 chars only first two get carried through. so sometimes suggestions aren't totally accurate!
2) I need to watch out for users pressing the arrow down key, and then set focus to the first list item in the suggestion box! Can't seem to get this working though!
Have included code for you to look at! Any suggestions welcomed.. However I don't really want to use a plugin seeing as I have this 95% done already..
Here is the jsfiddle link!
http://jsfiddle.net/beardedSi/kr4Cq/
Note - I just noticed that in the fiddle verison as I have put dummy array in the code it is no longer matching suggestions - but this doesn't matter, it works fine in my working code!
work = true;
function finish() {
work = true;
}
var autoComp = $('.autoComp');
var skillInput = $('.new-skills input');
$('.new-skills input').keypress(function (e) {
var param = $(skillInput).val();
if (param.length > 0) {
$.getJSON('/recruiter/home/GetAutocompleteSkills?term=' + param, function (data) {
$(autoComp).slideDown().empty();
var items = [];
$.each(data, function (key, val) {
items.push('<li>' + val + '</li>');
});
$(autoComp).append(items.join(''));
$('.base-wrapper a').not('.button').click(function (e) {
work = false;
e.preventDefault();
$(skillInput).val($(this).text());
$(autoComp).empty().slideUp(500, finish);
});
});
}
});
$(skillInput).keydown(function (e) {
if (e.keyCode == 40) {
console.log("down");
$('.autoComp li:first:child').focus();
}
});
$('.new-skills input').blur(function () {
if (work == true)
$(autoComp).slideUp();
});

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