I'm running the following:
var token = document.location.href.split('?s=')[1].match(/[a-z0-9]+/);
var longString = "?s=" + token + "?_sft_category=";
var tokenB = document.location.href.split(longString)[1].match(/[a-z0-9]+/);
var attribuB = "." + tokenB;
jQuery('a[data-filter-value="' + attribuB + '"]').parent().parent().parent().find(".dropdown-toggle").html(tokenB).append(' <span class="caret"></span>');
How come I get?
Uncaught TypeError: Cannot read property 'match' of undefined
If I remove .match(/[a-z0-9]+/) i don't get any error, but I do need match ..
The URL looks like:
http://www.example.com/xchanges/results/?s=sky&_sft_category=ogilvy
Probably using a library would be better here. I developed a tiny JavaScript library that work with the urls: url.js.
<script src="path/to/url.js"></script>
<script src="your-js.js"></script>
Then you can do:
var token = Url.queryString("s");
var tokenB = Url.queryString("_sft_category");
And that's it.
Note that instead of calling parent() multiple times, you can use the closest() method:
$('a[data-filter-value="' + attribuB + '"]')
.closest("<your_container>")
.find(".dropdown-toggle")
.html(tokenB)
.append(' <span class="caret"></span>')
;
Your location.href probably doesn't contain your longString. If you split the href using a string that's not present in href, you're left with an array with only 1 string, so you cannot get the [1] element.
It all depends on what your token variable is....
You've used a '?' character twice, which is incorrect.
I'd use
var tokenB = document.location.href.split('_sft_category=')[1].match(/[a-z0-9]+/);
to get the desired value, as _sft_category= will probably only occur once in location.href and you should then be able to split the href into an array of 2.
Saves you 2 lines of code ;) ...
You are using ? twice in longString, which in turn will make split() return an array with only one value. You need to change it to:
var longString = "?s=" + token + "&_sft_category=";
The ? character should only be used once, at the start of the querystring.
Related
I have a php file called rows2.php that shows results like so after entering new fields in a database. It is simply showing the new id of the field :-
{'new_id':'92'}
I want to load this with javascript and add the new_id to existing list with : either side of the number and display it but I seem to be struggling? Many thanks.
The javascript to load the page and get the result is :
$.getJSON("rows2.php", function(result) {
var new_id=console.log(result[0].new_id);
document.getElementById('vehicle_list').value = '' + document.getElementById('vehicle_list').value + 'new_id' + ':';
})
You should use
document.getElementById('vehicle_list').innerHTML = ''+document.getElementById('vehicle_list').innerHTML+'new_id'+':';
instead of
document.getElementById('vehicle_list').value = ''+document.getElementById('vehicle_list').value+'new_id'+':';
.value is used only in case of input elements otherwise you must use .innerHTML
Don't put the variable name (new_id) in quotes.
document.getElementById('vehicle_list').value = '' + document.getElementById('vehicle_list').value + new_id + ':';
I have an events listing page which can be filtered by type and also by date using query string variables.
I am trying to achieve the following logic using javascript/jQuery.
I have a calendar which fires a function when updated. When fired I need to implement the following logic:
If the current URL contains ?filter= then add &dateStart= to the end of the URL.
If the current URL contains ?filter= AND &dateStart= then keep the current filter value but replace the date query string with a new one.
If the current URL contains ONLY ?dateStart= then replace it with the new one.
I have tried various methods to achieve this but I keep hitting the problem of appending information to the end of the URL rather than replacing parts of it.
Any help would be appreciated.
Thanks.
You can try something like this:
NOTE: not tested.
var newDateValue;
var myPath = window.location.pathname
//check if path contains the different variables
var containsFilter = myPath.indexOf("?filter=") != -1 ? true : false;
var containsAppendedDateStart = myPath.indexOf("&dateStart=" != -1 ? true : false;
var containsDateStart = myPath.indexOf("?dateStart=" != -1 ? true : false;
if(containsFilter && !containsAppendedDateStart){
// If the current URL contains ?filter= then add &dateStart= to the end of the URL.
window.location.replace(window.location.href + "&dateStart=");
}else if(containsFilter && containsAppendedDateStart){
//If the current URL contains ?filter= AND &dateStart= then keep the current filter value but replace the date query string with a new one.
newDateValue = 10; // add your new value here
var splittedPathArray = myPath.split("&dateStart=");
var newUrl = window.location.protocol + "//" + window.location.host + "/" + splittedPathArray[0] + "&dateStart=" + addNewValue;
window.location.replace(newUrl);
}else if(containsDateStart){
// If the current URL contains ONLY ?dateStart= then replace it with the new one.
newDateValue = 15;// add your new value here
var splittedPathArray = myPath.split("?dateStart=");
var newUrl = window.location.protocol + "//" + window.location.host + "/" + splittedPathArray[0] + "?dateStart=" + addNewValue;
}
You can achieve this more easy with native Web API or vanilla javascript than with jQuery. As far as jQuery don't provide any specific function to work with query strings.
The new URLSearchParams object provide a few methods to work more easily with URL query strings. In your case for example you'll need to do something like this:
function updateQueryString(queryString, dateStart) {
var queryString = new URLSearchParams(queryString);
queryString.has('dateStart')
? queryString.set('dateStart', dateStart)
: queryString.append('dateStart', dateStart);
return queryString.toString();
}
for this solution you'll need a polyfill
Sadly this is not yet implemented by the majority of web browsers and you'll need to "polyfill" the URLSearchParams object for this solution to work properly. You'll have to add this line to the <head> section in your html:
<script src="https://cdn.rawgit.com/inexorabletash/polyfill/v0.1.14/polyfill.min.js"></script>
You can find more information about the URLSearchParams in the Mozilla Developers Network Documentation, the WHATWG specification for the URL Standard or the specification by the W3C
solution without polyfill
If you don't like to use edge features you still can do it without any extra polyfill. It would look like this:
function updateQueryString(queryString, dateStart) {
var qsObject = {};
queryString
.substring(1) // ignore '?'
.split('&').forEach(function (param) {
param = param.split('=');
qsObject[param[0]] = param[1];
});
qsObject['dateStart'] = dateStart;
return '&' + Object.keys(qsObject)
.map(function (key) {
return key + '=' + qsObject[key];
})
.join('?');
}
Call whatever version of the updateQueryString function you rather like this:
updateQueryString(windonw.location.search, dateStart)
I am trying to edit a Greasemonkey/jQuery script. I can't post the link here.
The code is obfuscated and compressed with minify.
It starts like this:
var _0x21e9 = ["\x67\x65\x74\x4D\x6F\x6E\x74\x68", "\x67\x65\x74\x55\x54\x43\x44\x61\x74\x65", ...
After "decoding" it, I got this:
var _0x21e9=["getMonth","getUTCDate","getFullYear", ...
It is a huge list (500+ ). Then, it has some variables like this:
month = date[_0x21e9[0]](), day = date[_0x21e9[1]](), ...
_0x21e9[0] is getMonth, _0x21e9[1] is getUTCDate, etc.
Is it possible to replace the square brackets with the actual variable name? How?
I have little knowledge in javascript/jQuery and can not "read" the code the way it is right now.
I just want to use some functions from this huge script and remove the others I do not need.
Update: I tried using jsbeautifier.org as suggested here and in the duplicated question but nothing changed, except the "indent".
It did not replace the array variables with the decoded names.
For example:
jsbeautifier still gives: month = date[_0x21e9[0]]().
But I need: month = date["getMonth"]().
None of the online deobfuscators seem to do this, How can I?
Is there a way for me to share the code with someone, at least part of it? I read I can not post pastebin, or similar here. I can not post it the full code here.
Here is another part of the code:
$(_0x21e9[8] + vid)[_0x21e9[18]]();
[8] is "." and [18] is "remove". Manually replacing it gives a strange result.
I haven't seen any online deobfuscator that does this yet, but the principle is simple.
Construct a text filter that parses the "key" array and then replaces each instance that that array is referenced, with the appropriate array value.
For example, suppose you have a file, evil.js that looks like this (AFTER you have run it though jsbeautifier.org with the Detect packers and obfuscators? and the Unescape printable chars... options set):
var _0xf17f = ["(", ")", 'div', "createElement", "id", "log", "console"];
var _0x41dcx3 = eval(_0xf17f[0] + '{id: 3}' + _0xf17f[1]);
var _0x41dcx4 = document[_0xf17f[3]](_0xf17f[2]);
var _0x41dcx5 = _0x41dcx3[_0xf17f[4]];
window[_0xf17f[6]][_0xf17f[5]](_0x41dcx5);
In that case, the "key" variable would be _0xf17f and the "key" array would be ["(", ")", ...].
The filter process would look like this:
Extract the key name using text processing on the js file. Result: _0xf17f
Extract the string src of the key array. Result:
keyArrayStr = '["(", ")", \'div\', "createElement", "id", "log", "console"]';
In javascript, we can then use .replace() to parse the rest of the JS src. Like so:
var keyArrayStr = '["(", ")", \'div\', "createElement", "id", "log", "console"]';
var restOfSrc = "var _0x41dcx3 = eval(_0xf17f[0] + '{id: 3}' + _0xf17f[1]);\n"
+ "var _0x41dcx4 = document[_0xf17f[3]](_0xf17f[2]);\n"
+ "var _0x41dcx5 = _0x41dcx3[_0xf17f[4]];\n"
+ "window[_0xf17f[6]][_0xf17f[5]](_0x41dcx5);\n"
;
var keyArray = eval (keyArrayStr);
//-- Note that `_0xf17f` is the key name we already determined.
var keyRegExp = /_0xf17f\s*\[\s*(\d+)\s*\]/g;
var deObsTxt = restOfSrc.replace (keyRegExp, function (matchStr, p1Str) {
return '"' + keyArray[ parseInt(p1Str, 10) ] + '"';
} );
console.log (deObsTxt);
if you run that code, you get:
var _0x41dcx3 = eval("(" + '{id: 3}' + ")");
var _0x41dcx4 = document["createElement"]("div");
var _0x41dcx5 = _0x41dcx3["id"];
window["console"]["log"](_0x41dcx5);
-- which is a bit easier to read/understand.
I've also created an online page that takes JS source and does all 3 remapping steps in a slightly more automated and robust manner. You can see it at:
jsbin.com/hazevo
(Note that that tool expects the source to start with the "key" variable declaration, like your code samples do)
#Brock Adams solution is brilliant, but there is a small bug: it doesn't take into account simple quoted vars.
Example:
var _0xbd34 = ["hello ", '"my" world'];
(function($) {
alert(_0xbd34[0] + _0xbd34[1])
});
If you try to decipher this example, it will result on this:
alert("hello " + ""my" world")
To resolve this, just edit the replacedSrc.replace into #Brock code:
replacedSrc = replacedSrc.replace (nameRegex, function (matchStr, p1Str) {
var quote = keyArry[parseInt (p1Str, 10)].indexOf('"')==-1? '"' : "'";
return quote + keyArry[ parseInt (p1Str, 10) ] + quote;
} );
Here you have a patched version.
for (var i = 0; i < _0x21e9.length; i++) {
var funcName = _0x21e9[i];
_0x21e9[funcName] = funcName;
}
this will add all the function names as keys to the array. allowing you to do
date[_0x21e9["getMonth"]]()
On my website:
http://mywebsite.com/1.html
I want to use the
window.location.pathname
to get the last part of the url:
1.html
and since I have all my webpages in numbers I want to add 1 to the current url so that when I click a button it will redirect me to the next page:
var url = 'http://mywebsite.com/' + window.location.pathname;
function nextImage (){
url = url + 1;
}
any ideas why this is not working ?
Your example wasn't working because you are trying to add 1 to a string that looks like this: "1.html". That will just get you this "1.html1" which is not what you want. You have to isolate the numeric part of the string and then convert it to an actual number before you can do math on it. After getting it to an actual number, you can then increase its value and then combine it back with the rest of the string.
You can use a custom replace function like this to isolate the various pieces of the original URL and replace the number with an incremented number:
function nextImage() {
return(window.location.href.replace(/(\d+)(\.html)$/, function(str, p1, p2) {
return((Number(p1) + 1) + p2);
}));
}
You can then call it like this:
window.location.href = nextImage();
Demo here: http://jsfiddle.net/jfriend00/3VPEq/
This will work for any URL that ends in some series of digits followed by .html and if you needed a slightly different URL form, you could just tweak the regular expression.
This is more robust:
mi = location.href.split(/(\d+)/);
no = mi.length - 2;
os = mi[no];
mi[no]++;
if ((mi[no] + '').length < os.length) mi[no] = os.match(/0+/) + mi[no];
location.href = mi.join('');
When the URL has multiple numbers, it will change the last one:
http://mywebsite.com/8815/1.html
It supports numbers with leading zeros:
http://mywebsite.com/0001.html
Example
Even it is not a good way of doing what you want try this hint:
var url = MUST BE A NUMER FIRST
function nextImage (){
url = url + 1;
location.href='http://mywebsite.com/' + url+'.html';
}
What you're doing is appending a "1" (the string) to your URL. If you want page 1.html link to page 2.html you need to take the 1 out of the string, add one to it, then reassemble the string.
Why not do something like this:
var url = 'http://mywebsite.com/1.html';
var pageNum = parseInt( url.split("/").pop(),10 );
var nextPage = 'http://mywebsite.com/'+(pageNum+1)+'.html';
nextPage will contain the url http://mywebsite.com/2.html in this case. Should be easy to put in a function if needed.
My first delve into working with JSON data. I have a bit of experience using jQuery though.
I'm posting to this URL (tumblr api): jyoseph.com/api/read/json
What I'm trying to do is output the json that gets returned. What I have so far:
$(document).ready(function(){
$.getJSON("http://jyoseph.com/api/read/json?callback=?",
function(data) {
//console.log(data);
console.log(data.posts);
$.each(data.posts, function(i,posts){
var id = this.id;
var type = this.type;
var date = this.date;
var url = this.url;
var photo500 = this.photo-url-500;
$('ul').append('<li> ' +id+ ' - ' +type+ ' - ' +date+ ' - ' +url+ ' - ' +photo500+ ' - ' + ' </li>');
});
});
});
See my jsbin post for the entire script: http://jsbin.com/utaju/edit
Some of the keys from tumblr have "-" hyphens in them, and that seem to be causing a problem. As you can see "photo-url-500" or another "photo-caption" is causing the script to break, it's outputting NaN.
Is there a problem with having hyphens in the key names? Or am I going about this all wrong?
If there are dashes in the names you'll need to access them differently. Change var photo500 = this.photo-url-500; to read var photo500 = this["photo-url-500"];.
Please note it is best not to append inside each iteration. Better to append to a string or push to an array then append once after the iterator has finished. Appending to the dom is expensive.
Use the bracket notation to access the members:
var photo500 = this['photo-url-500'];