You need to use a regular expression, so that you can specify the global (g) flag:

    var s = &#39;some+multi+word+string&#39;.replace(/\+/g, &#39; &#39;);

(I removed the `$()` around the string, as `replace` is not a jQuery method, so that won&#39;t work at all.)

    &#39;some+multi+word+string&#39;.replace(/\+/g, &#39; &#39;);
                                       ^^^^^^

&#39;g&#39; = &quot;global&quot;

Cheers

RegEx is the way to go in most cases.

In some cases, it may be faster to specify more elements or the specific element to perform the replace on: 

    $(document).ready(function () {
        $(&#39;.myclass&#39;).each(function () {
            $(&#39;img&#39;).each(function () {
                $(this).attr(&#39;src&#39;, $(this).attr(&#39;src&#39;).replace(&#39;_s.jpg&#39;, &#39;_n.jpg&#39;));
            })
        })
    });

This does the replace once on each string, but it does it using a more specific selector.

An interviewer asked me:

*What is `Observer` and `Observable` and when should we use them?*

I wasn&#39;t aware of these terms, so when I got back home and started Googling about `Observer` and `Observable`, I found some points from different resources:

&gt; 1) [`Observable`](https://docs.oracle.com/javase/8/docs/api/java/util/Observable.html) is a class and [`Observer`](https://docs.oracle.com/javase/8/docs/api/java/util/Observer.html) is an interface.
&gt; 
&gt; 2) The `Observable` class maintains a list of `Observer`s.
&gt; 
&gt; 3) When an `Observable` object is updated, it invokes the `update()` method of each of its `Observer`s to notify that, it is changed.

I found this example:

    import java.util.Observable;
    import java.util.Observer;
    
    class MessageBoard extends Observable
    {
        public void changeMessage(String message) 
        {
            setChanged();
            notifyObservers(message);
        }
    }
    
    class Student implements Observer 
    {
        @Override
        public void update(Observable o, Object arg) 
        {
            System.out.println(&quot;Message board changed: &quot; + arg);
        }
    }
    
    public class MessageBoardTest 
    {
        public static void main(String[] args) 
        {
            MessageBoard board = new MessageBoard();
            Student bob = new Student();
            Student joe = new Student();
            board.addObserver(bob);
            board.addObserver(joe);
            board.changeMessage(&quot;More Homework!&quot;);
        }
    }


But I don&#39;t understand why we need `Observer` and `Observable`? What are the `setChanged()` and `notifyObservers(message)` methods for?



When should we use Observer and Observable?

in iOS6 I noticed the new Container View but am not quite sure how to access it&#39;s controller from the containing view.

Scenario:

![example][1]


  [1]: http://i.stack.imgur.com/aNOLJ.png

I want to access the labels in Alert view controller from the view controller that houses the container view.

There&#39;s a segue between them, can I use that?

Access Container View Controller from Parent iOS

This does not work and I need it badly

    $(&#39;some+multi+word+string&#39;).replace(&#39;+&#39;, &#39; &#39; );

always gets

    some multi+word+string

it&#39;s always replacing for the first instance only, but I need it to work for all + symbols.


jQuery - replace all instances of a character in a string

This does not work and I need it badly
<pre><code class="hljs language-javascript">$('some+multi+word+string').replace('+', ' ' );
</code></pre>
always gets
<pre><code class="hljs language-arduino">some multi+word+string
</code></pre>
it's always replacing for the first instance only, but I need it to work for all + symbols.

I have an array of objects and I&#39;m wondering the best way to search it. Given the below example how can I search for `name = &quot;Joe&quot;` and `age &lt; 30`? Is there anything jQuery can help with or do I have to brute force this search myself?

    var names = new Array();
    
    var object = { name : &quot;Joe&quot;, age:20, email: &quot;joe@hotmail.com&quot;};
    names.push(object);
    
    object = { name : &quot;Mike&quot;, age:50, email: &quot;mike@hotmail.com&quot;};
    names.push(object);

    object = { name : &quot;Joe&quot;, age:45, email: &quot;mike@hotmail.com&quot;};
    names.push(object);

    
    

javascript filter array of objects

I know there are a lot of questions about it, but I tried several solutions, and nothing works.

In my django app I have a form:

    &lt;form method=&#39;post&#39;&gt;
        &lt;button type=&#39;submit&#39;&gt;Send&lt;/button&gt;
    &lt;/form&gt;

I wan&#39;t to disable the button once the user has submitted the form. Using other questions, I tried several things, like:
 
    &lt;button type=&#39;submit&#39; onclick=&quot;this.disabled=true&quot;&gt;Send&lt;/button&gt;

When I click, the button is disabled... but the form is not submitted. And for each try I had the same issue: either the button is disabled or the form is submitted. I can&#39;t find how to do both...

I&#39;m using Chrome. Any idea on why I have this problem?  Thank you for your help.

Disable button after submit with jQuery

I have to disable inputs at first and then on click of a link to enable them.

This is what I have tried so far, but it doesn&#39;t work.
 
HTML:

    &lt;input type=&quot;text&quot; disabled=&quot;disabled&quot; class=&quot;inputDisabled&quot; value=&quot;&quot;&gt;

jQuery:

    $(&quot;#edit&quot;).click(function(event){
       event.preventDefault();
       $(&#39;.inputDisabled&#39;).removeAttr(&quot;disabled&quot;)
    });
 
&lt;br&gt;
This shows me `true` and then `false` but nothing changes for the inputs:

    $(&quot;#edit&quot;).click(function(event){
       alert(&#39;&#39;);
       event.preventDefault();
       alert($(&#39;.inputDisabled&#39;).attr(&#39;disabled&#39;));
       $(&#39;.inputDisabled&#39;).removeAttr(&quot;disabled&quot;);
       alert($(&#39;.inputDisabled&#39;).attr(&#39;disabled&#39;));
    });


How to remove &quot;disabled&quot; attribute using jQuery?

I would like to dynamically generate a string of text based on a current day. So, for example, if it is day 1 then I would like my code to generate = &quot;Its the &amp;lt;dynamic&amp;gt;1*&amp;lt;dynamic string&amp;gt;*st*&amp;lt;/dynamic string&amp;gt;*&amp;lt;/dynamic&amp;gt;&quot;.

There are 12 days in total so I have done the following:

1. I&#39;ve set up a for loop which loops through the 12 days.

2. In my html I have given my element a unique id with which to target it, see below:

        &lt;h1 id=&quot;dynamicTitle&quot; class=&quot;CustomFont leftHeading shadow&quot;&gt;On The &lt;span&gt;&lt;/span&gt; &lt;em&gt;of rest of generic text&lt;/em&gt;&lt;/h1&gt;

3. Then, inside my for loop I have the following code:

        $(&quot;#dynamicTitle span&quot;).html(i);
        var day = i;
        if (day == 1) {
            day = i + &quot;st&quot;;
        } else if (day == 2) {
            day = i + &quot;nd&quot;
        } else if (day == 3) {
            day = i + &quot;rd&quot;
        }


*UPDATE*

This is the entire for loop as requested:

    $(document).ready(function () {
        for (i = 1; i &lt;= 12; i++) {
            var classy = &quot;&quot;;
            if (daysTilDate(i + 19) &gt; 0) {
                classy = &quot;future&quot;;
                $(&quot;#Day&quot; + i).addClass(classy);
                $(&quot;#mainHeading&quot;).html(&quot;&quot;);
                $(&quot;#title&quot;).html(&quot;&quot;);
                $(&quot;#description&quot;).html(&quot;&quot;);
            } else if (daysTilDate(i + 19) &lt; 0) {
                classy = &quot;past&quot;;
                $(&quot;#Day&quot; + i).addClass(classy);
                $(&quot;#title&quot;).html(&quot;&quot;);
                $(&quot;#description&quot;).html(&quot;&quot;);
                $(&quot;#mainHeading&quot;).html(&quot;&quot;);
                $(&quot;.cta&quot;).css(&#39;display&#39;, &#39;none&#39;);
                $(&quot;#Day&quot; + i + &quot; .prizeLink&quot;).attr(&quot;href&quot;, &quot;&quot; + i + &quot;.html&quot;);
            } else {
                classy = &quot;current&quot;;
                $(&quot;#Day&quot; + i).addClass(classy);
                $(&quot;#title&quot;).html(headings[i - 1]);
                $(&quot;#description&quot;).html(descriptions[i - 1]);
                $(&quot;.cta&quot;).css(&#39;display&#39;, &#39;block&#39;);
                $(&quot;#dynamicImage&quot;).attr(&quot;src&quot;, &quot;..&quot; + i + &quot;.jpg&quot;);
                $(&quot;#mainHeading&quot;).html(&quot;&quot;);
                $(&quot;.claimPrize&quot;).attr(&quot;href&quot;, &quot;&quot; + i + &quot;.html&quot;);
                $(&quot;#dynamicTitle span&quot;).html(i);
                var day = i;
                if (day == 1) {
                    day = i + &quot;st&quot;;
                } else if (day == 2) {
                    day = i + &quot;nd&quot;
                } else if (day == 3) {
                    day = i + &quot;rd&quot;
                } else if (day) {
                }
            }
        }

Add st, nd, rd and th (ordinal) suffix to a number

Why would this work :

    $(document).on(&quot;dblclick&quot;, &quot;#areaA tr:has(td)&quot;, function(e) {
         //code here
     });

and this does not

    $(&quot;#areaA tr:has(td)&quot;).on(&#39;dblclick&#39;, function(e) {
        //Code here
    });

I&#39;m following the example on the jquery documentation page exactly, but my double click does not fire.  When I do it the first way, it works, but seems like it fires the event twice.

This is in the context of a Kendo UI grid.

Is there really a difference between these two pieces of code?

Jquery .on with doubleclick event

What would be the most efficient way to check whether a string contains a &quot;.&quot; or not?

I know you can do this in many different ways like with [regular expressions][1] or loop through the string to see if it contains a dot (&quot;.&quot;).

  [1]: http://en.wikipedia.org/wiki/Regular_expression


PHP string &quot;contains&quot;

Here is how I check whether `mystring` begins with some string:

    &gt;&gt;&gt; mystring.lower().startswith(&quot;he&quot;)
    True

The problem is that `mystring` is very long (thousands of characters), so the `lower()` operation takes a lot of time.

**QUESTION:** Is there a more efficient way?

My unsuccessful attempt:

    &gt;&gt;&gt; import re;
    &gt;&gt;&gt; mystring.startswith(&quot;he&quot;, re.I)
    False


Case-insensitive string startswith in Python

Is it possible to get the object property name as a string

    person = {};
    person.first_name = &#39;Jack&#39;;
    person.last_name = &#39;Trades&#39;;
    person.address = {};
    person.address.street = &#39;Factory 1&#39;;
    person.address.country = &#39;USA&#39;;

I&#39;d like to use it like this:

    var pn = propName( person.address.country ); // should return &#39;country&#39; or &#39;person.address.country&#39;
    var pn = propName( person.first_name );      // should return &#39;first_name&#39; or &#39;person.first_name&#39;


**NOTE**: this code is exactly what I&#39;m looking for. I understand it sounds even stupid, but it&#39;s not.

This is what I want to do with it.

HTML
    &lt;input type=&quot;text&quot; value=&quot;Jack&quot; id=&quot;id_first_name &quot;/&gt;

    person = {};
    person.id_first_name = &#39;Jack&#39;;
    person.id_last_name = &#39;Trades&#39;;
    person.address = {};
    person.address.id_address = &#39;Factory 1&#39;;
    person.address.id_country = &#39;USA&#39;;


    extPort.postMessage
    (
      {
        message : MSG_ACTION,
        propName( person.first_name ): person.first_name
      }
    };

----------------------**ANSWER**-----------------------

Got it thanks to ibu. He pointed the right way and I used a recursive function

    var res = &#39;&#39;;
    
    function propName(prop, value) {
    	for (var i in prop) {
    		if (typeof prop[i] == &#39;object&#39;) {
    			if (propName(prop[i], value)) {
    				return res;
    			}
    		} else {
    			if (prop[i] == value) {
    				res = i;
    				return res;
    			}
    		}
    	}
    	return undefined;
    }
    
    var pn = propName(person, person.first_name); // returns &#39;first_name&#39;
    var pn = propName(person, person.address.country); // returns &#39;country&#39;

DEMO: http://jsbin.com/iyabal/1/edit

Get object property name as a string

I am trying to write a text game and I have run into an error in the function I am defining that lets you basically spend your skill points after you make your character. At first, the error stated that I was attempting to subtract a string from an integer in this part of the code:`balance - strength`. Obviously that was wrong so I fixed it with `strength = int(strength)`... but now I am getting this error which I have never seen before(new programmer) and I am stumped on what exactly it is trying to tell me and how I fix it.

Here is my code for the part of the function that isn&#39;t working:

    def attributeSelection():
        balance = 25
        print(&quot;Your SP balance is currently 25.&quot;)
        strength = input(&quot;How much SP do you want to put into strength?&quot;)
        strength = int(strength)
        balanceAfterStrength = balance - strength
        if balanceAfterStrength == 0:
            print(&quot;Your SP balance is now 0.&quot;)
            attributeConfirmation()
        elif strength &lt; 0:
            print(&quot;That is an invalid input. Restarting attribute selection. Keep an eye on your balance this time!&quot;)
            attributeSelection()
        elif strength &gt; balance:
            print(&quot;That is an invalid input. Restarting attribute selection. Keep an eye on your balance this time!&quot;)
            attributeSelection()
        elif balanceAfterStrength &gt; 0 and balanceAfterStrength &lt; 26:
            print(&quot;Ok. You&#39;re balance is now at &quot; + balanceAfterStrength + &quot; skill points.&quot;)
        else:
            print(&quot;That is an invalid input. Restarting attribute selection.&quot;)
            attributeSelection()

And here is the error I get when I get to this part of the code in the shell:


        Your SP balance is currently 25.
    How much SP do you want to put into strength?5
    Traceback (most recent call last):
      File &quot;C:\Python32\APOCALYPSE GAME LIBRARY\apocalypseGame.py&quot;, line 205, in &lt;module&gt;
        gender()
      File &quot;C:\Python32\APOCALYPSE GAME LIBRARY\apocalypseGame.py&quot;, line 22, in gender
        customizationMan()
      File &quot;C:\Python32\APOCALYPSE GAME LIBRARY\apocalypseGame.py&quot;, line 54, in customizationMan
        characterConfirmation()
      File &quot;C:\Python32\APOCALYPSE GAME LIBRARY\apocalypseGame.py&quot;, line 93, in characterConfirmation
        characterConfirmation()
      File &quot;C:\Python32\APOCALYPSE GAME LIBRARY\apocalypseGame.py&quot;, line 85, in characterConfirmation
        attributeSelection()
      File &quot;C:\Python32\APOCALYPSE GAME LIBRARY\apocalypseGame.py&quot;, line 143, in attributeSelection
        print(&quot;Ok. You&#39;re balance is now at &quot; + balanceAfterStrength + &quot; skill points.&quot;)
    TypeError: Can&#39;t convert &#39;int&#39; object to str implicitly

Does anyone know how to solve this? Thanks ahead.

TypeError: Can&#39;t convert &#39;int&#39; object to str implicitly

I am looking for an efficient way to remove unwanted parts from strings in a DataFrame column.

Data looks like:

        time    result
    1    09:00   +52A
    2    10:00   +62B
    3    11:00   +44a
    4    12:00   +30b
    5    13:00   -110a

I need to trim these data to:

        time    result
    1    09:00   52
    2    10:00   62
    3    11:00   44
    4    12:00   30
    5    13:00   110

I tried `.str.lstrip(&#39;+-&#39;)` and .`str.rstrip(&#39;aAbBcC&#39;)`, but got an error:  

    TypeError: wrapper() takes exactly 1 argument (2 given)

Any pointers would be greatly appreciated!



Remove unwanted parts from strings in a column

Is there any way to `find and replace text string automatically in all folder&#39;s files`?


Sublime text 2 - find and replace globally ( all files and in all directories )

I use the [md5 grunt task][1] to generate MD5 filenames. Now I want to rename the sources in the HTML file with the new filename in the callback of the task. I wonder what&#39;s the easiest way to do this.

  [1]: https://npmjs.org/package/grunt-md5

Replace a string in a file with nodejs

How do I replace a word under the cursor in Vim. 

So instead of using `dw` then `i` then the word and then `Esc`, is there a simpler combination to replace the word under the cursor?

How to replace a single word under cursor?

In Java, I&#39;ve a File-Name-String. There I want to replace all illegal Characters with &#39;_&#39;, but not `a-z`, `0-9`, `-`,`.` and `_`

I tried following code: But this did not worked!

    myString = myString.replaceAll(&quot;[\\W][^\\.][^-][^_]&quot;, &quot;_&quot;);



Replacing illegal character in fileName

I need to recursively search for a specified string within all files and subdirectories within a directory and replace this string with another string.

I know that the command to find it might look like this:

    grep &#39;string_to_find&#39; -r ./*

But how can I replace every instance of `string_to_find` with another string?

Content Type	Original Author	Original Content on Stackoverflow
Question	thednp	View Question on Stackoverflow
Solution 1 - Jquery	Guffa	View Answer on Stackoverflow
Solution 2 - Jquery	Madbreaks	View Answer on Stackoverflow
Solution 3 - Jquery	phyatt	View Answer on Stackoverflow

jQuery - replace all instances of a character in a string

Jquery Problem Overview

Jquery Solutions

Solution 1 - Jquery

Solution 2 - Jquery

Solution 3 - Jquery

Access Container View Controller from Parent iOS

When should we use Observer and Observable?

Attributions