~> if [ -z $FOO ]; then echo "EMPTY"; fi
EMPTY
~> FOO=""
~> if [ -z $FOO ]; then echo "EMPTY"; fi
EMPTY
~> FOO="a"
~> if [ -z $FOO ]; then echo "EMPTY"; fi
~> 

-z works for undefined variables too. To distinguish between an undefined and a defined you'd use the things listed here or, with clearer explanations, here.

Cleanest way is using expansion like in these examples. To get all your options check the Parameter Expansion section of the manual.

Alternate word:

~$ unset FOO
~$ if test ${FOO+defined}; then echo "DEFINED"; fi
~$ FOO=""
~$ if test ${FOO+defined}; then echo "DEFINED"; fi
DEFINED

Default value:

~$ FOO=""
~$ if test "${FOO-default value}" ; then echo "UNDEFINED"; fi
~$ unset FOO
~$ if test "${FOO-default value}" ; then echo "UNDEFINED"; fi
UNDEFINED

Of course you'd use one of these differently, putting the value you want instead of 'default value' and using the expansion directly, if appropriate.

Generally, VS Code uses ctrl+j to open Terminal, so I created a keybinding to switch with ctrl+k combination, like below at keybindings.json:

[    
    {
        "key": "ctrl+k",
        "command": "workbench.action.terminal.focus"
    },
    {
        "key": "ctrl+k",
        "command": "workbench.action.focusActiveEditorGroup",
        "when": "terminalFocus"
    }
]

According to the stack trace, your issue is that your app cannot find org.apache.commons.dbcp.BasicDataSource, as per this line:

java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource

I see that you have commons-dbcp in your list of jars, but for whatever reason, your app is not finding the BasicDataSource class in it.

By default, MomentJS parses in local time. If only a date string (with no time) is provided, the time defaults to midnight.

In your code, you create a local date and then convert it to the UTC timezone (in fact, it makes the moment instance switch to UTC mode), so when it is formatted, it is shifted (depending on your local time) forward or backwards.

If the local timezone is UTC+N (N being a positive number), and you parse a date-only string, you will get the previous date.

Here are some examples to illustrate it (my local time offset is UTC+3 during DST):

>>> moment('07-18-2013', 'MM-DD-YYYY').utc().format("YYYY-MM-DD HH:mm")
"2013-07-17 21:00"
>>> moment('07-18-2013 12:00', 'MM-DD-YYYY HH:mm').utc().format("YYYY-MM-DD HH:mm")
"2013-07-18 09:00"
>>> Date()
"Thu Jul 25 2013 14:28:45 GMT+0300 (Jerusalem Daylight Time)"

If you want the date-time string interpreted as UTC, you should be explicit about it:

>>> moment(new Date('07-18-2013 UTC')).utc().format("YYYY-MM-DD HH:mm")
"2013-07-18 00:00"

or, as Matt Johnson mentions in his answer, you can (and probably should) parse it as a UTC date in the first place using moment.utc() and include the format string as a second argument to prevent ambiguity.

>>> moment.utc('07-18-2013', 'MM-DD-YYYY').format("YYYY-MM-DD HH:mm")
"2013-07-18 00:00"

To go the other way around and convert a UTC date to a local date, you can use the local() method, as follows:

>>> moment.utc('07-18-2013', 'MM-DD-YYYY').local().format("YYYY-MM-DD HH:mm")
"2013-07-18 03:00"

Use the "form" attribute, if you want to save your markup:

<form method="GET" id="my_form"></form>

<table>
    <tr>
        <td>
            <input type="text" name="company" form="my_form" />
            <button type="button" form="my_form">ok</button>
        </td>
    </tr>
</table>

(*Form fields outside of the < form > tag)

'pywin32' is its canonical name.

http://sourceforge.net/projects/pywin32/

Each class will use its own classloader to load other classes. So if ClassA.class references ClassB.class then ClassB needs to be on the classpath of the classloader of ClassA, or its parents.

The thread context classloader is the current classloader for the current thread. An object can be created from a class in ClassLoaderC and then passed to a thread owned by ClassLoaderD. In this case the object needs to use Thread.currentThread().getContextClassLoader() directly if it wants to load resources that are not available on its own classloader.

    JSONArray ja = new JSONArray(json);
    JSONObject ob = ja.getJSONObject(0);
    String nh = ob.getString("status");

[ { "status" : "true" } ]

where 'json' is a String and status is the key from which i will get value

This works fine:

struct node *addNode(node *head, int value) {
    node *newNode = (node *) malloc(sizeof(node));
    newNode->value = value;
    newNode->next = NULL;

    if (head == NULL) {
        // Add at the beginning
        head = newNode;
    } else {
        node *current = head;

        while (current->next != NULL) {
            current = current->next;
        };

        // Add at the end
        current->next = newNode;
    }

    return head;
}

Example usage:

struct node *head = NULL;

for (int currentIndex = 1; currentIndex < 10; currentIndex++) {
    head = addNode(head, currentIndex);
}

String names[] = new String[]{"Avinash","Amol","John","Peter"};
java.util.List<String> namesList = Arrays.asList(names);

or

String names[] = new String[]{"Avinash","Amol","John","Peter"};
java.util.List<String> temp = Arrays.asList(names);         

Above Statement adds the wrapper on the input array. So the methods like add & remove will not be applicable on list reference object 'namesList'.

If you try to add an element in the existing array/list then you will get "Exception in thread "main" java.lang.UnsupportedOperationException".

The above operation is readonly or viewonly.
We can not perform add or remove operation in list object. But

String names[] = new String[]{"Avinash","Amol","John","Peter"};
java.util.ArrayList<String> list1 = new ArrayList<>(Arrays.asList(names));

or

String names[] = new String[]{"Avinash","Amol","John","Peter"};
java.util.List<String> listObject = Arrays.asList(names);
java.util.ArrayList<String> list1 = new ArrayList<>(listObject);

In above statement you have created a concrete instance of an ArrayList class and passed a list as a parameter.

In this case method add & remove will work properly as both methods are from ArrayList class so here we won't get any UnSupportedOperationException.
Changes made in Arraylist object (method add or remove an element in/from an arraylist) will get not reflect in to original java.util.List object.

String names[] = new String[] {
    "Avinash",
    "Amol",
    "John",
    "Peter"
};

java.util.List < String > listObject = Arrays.asList(names);
java.util.ArrayList < String > list1 = new ArrayList < > (listObject);
for (String string: list1) {
    System.out.print("   " + string);
}
list1.add("Alex"); //Added without any exception
list1.remove("Avinash"); //Added without any exception will not make any changes in original list in this case temp object.


for (String string: list1) {
    System.out.print("   " + string);
}
String existingNames[] = new String[] {
    "Avinash",
    "Amol",
    "John",
    "Peter"
};
java.util.List < String > namesList = Arrays.asList(names);
namesList.add("Bob"); // UnsupportedOperationException occur
namesList.remove("Avinash"); //UnsupportedOperationException

Don't use device-width/height anymore.

device-width, device-height and device-aspect-ratio are deprecated in Media Queries Level 4: https://developer.mozilla.org/en-US/docs/Web/CSS/@media#Media_features

Just use width/height (without min/max) in combination with orientation & (min/max-)resolution to target specific devices. On mobile width/height should be the same as device-width/height.

There is a javascript library DNS-JS.com that does just this.

DNS.Query("dns-js.com",
    DNS.QueryType.A,
    function(data) {
        console.log(data);
});

As mentioned before

iterator.remove()

is maybe the only safe way to remove list items during the loop.

For deeper understanding of items removal using the iterator, try to look at this thread

purls $.params() used without a parameter will give you a key-value object of the parameters.

jQuerys $.param() will build a querystring from the supplied object/array.

var params = parsedUrl.param();
delete params["page"];

var newUrl = "?page=" + $(this).val() + "&" + $.param(params);

Update
I've no idea why I used delete here...

var params = parsedUrl.param();
params["page"] = $(this).val();

var newUrl = "?" + $.param(params);

Since pandas 0.22 update, comparison options are available like:

• gt (greater than)
• lt (lesser than)
• eq (equals to)
• ne (not equals to)
• ge (greater than or equals to)

and many more. These functions return boolean array. Let's see how we can use them:

# sample data
df = pd.DataFrame({'col1': [0, 1, 2,3,4,5], 'col2': [10, 11, 12,13,14,15]})

# get values from col1 greater than or equals to 1
df.loc[df['col1'].ge(1),'col1']

1    1
2    2
3    3
4    4
5    5

# where co11 values is better 0 and 2
df.loc[df['col1'].between(0,2)]

 col1 col2
0   0   10
1   1   11
2   2   12

# where col1 > 1
df.loc[df['col1'].gt(1)]

 col1 col2
2   2   12
3   3   13
4   4   14
5   5   15

Really simple example.

Here is a really simple, but very effective, example. Once you have the basics down you can easily build off of it.

There are two main parts to using a Cursor Adapter with SQLite:

1. Create a proper Cursor from the Database.

2. Create a custom Cursor Adapter that takes the Cursor data from the database and pairs it with the View you intend to represent the data with.

1. Create a proper Cursor from the Database.

In your Activity:

SQLiteOpenHelper sqLiteOpenHelper = new SQLiteOpenHelper( 
        context, DATABASE_NAME, null, DATABASE_VERSION);

SQLiteDatabase sqLiteDatabase = sqLiteOpenHelper.getReadableDatabase();

String query = "SELECT * FROM clients ORDER BY company_name ASC"; // No trailing ';'

Cursor cursor = sqLiteDatabase.rawQuery(query, null); 

ClientCursorAdapter adapter = new ClientCursorAdapter(
        this, R.layout.clients_listview_row, cursor, 0 );

this.setListAdapter(adapter);

2. Create a Custom Cursor Adapter.

Note: Extending from ResourceCursorAdapter assumes you use XML to create your views.

public class ClientCursorAdapter extends ResourceCursorAdapter {

    public ClientCursorAdapter(Context context, int layout, Cursor cursor, int flags) {
        super(context, layout, cursor, flags);
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {
        TextView name = (TextView) view.findViewById(R.id.name);
        name.setText(cursor.getString(cursor.getColumnIndex("name")));

        TextView phone = (TextView) view.findViewById(R.id.phone);
        phone.setText(cursor.getString(cursor.getColumnIndex("phone")));
    }
}

While the answer given by Paul H shows the essential part, it is not a complete example. On the other hand the matplotlib example seems rather complicated and does not show how to use days.

So for everyone in need here is a full working example:

from datetime import datetime
import matplotlib.pyplot as plt
from matplotlib.dates import DateFormatter

myDates = [datetime(2012,1,i+3) for i in range(10)]
myValues = [5,6,4,3,7,8,1,2,5,4]
fig, ax = plt.subplots()
ax.plot(myDates,myValues)

myFmt = DateFormatter("%d")
ax.xaxis.set_major_formatter(myFmt)

## Rotate date labels automatically
fig.autofmt_xdate()
plt.show()

No one here mentioned the reason why you get the "System.Byte[]" string instead of the value, so I will.

When an object is implicitly cast to a String, the program will default to the object's public String ToString() method which is inherited from System.Object:

public virtual string ToString()
{
    return this.GetType().ToString();
}

If you find that you are often making this conversion, you could simply create a wrapper class and override this method like so:

public override string ToString()
{
    // do the processing here
    // return the nicely formatted string
}

Now each time you print this wrapper object you will get your value instead of the value from this.GetType().ToString().

Yes. IE7+ supports attribute selectors:

input[type=radio]
input[type^=ra]
input[type*=d]
input[type$=io]

Element input with attribute type which contains a value that is equal to, begins with, contains or ends with a certain value.

Other safe (IE7+) selectors are:

• Parent > child that has: p > span { font-weight: bold; }
• Preceded by ~ element which is: span ~ span { color: blue; }

Which for <p><span/><span/></p> would effectively give you:

<p>
    <span style="font-weight: bold;">
    <span style="font-weight: bold; color: blue;">
</p>

Further reading: Browser CSS compatibility on quirksmode.com

I'm surprised that everyone else thinks it can't be done. CSS attribute selectors have been here for some time already. I guess it's time we clean up our .css files.

In specific cases, Delete+Insert would save you time. I have a table that has 30000 odd rows and there is a daily update/insert of these records using a data file. The upload process generates 95% of update statements as the records are already there and 5% of inserts for ones that do not exist. Alternatively, uploading the data file records into a temp table, deletion of the destination table for records in the temp table followed by insertion of the same from the temp table has shown 50% gain in time.

Applying a rotation animation (without duration, thus no animation effect) is a simpler solution than either calling View.setRotation() or override View.onDraw method.

// substitude deltaDegrees for whatever you want
RotateAnimation rotate = new RotateAnimation(0f, deltaDegrees, 
    Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);  

// prevents View from restoring to original direction. 
rotate.setFillAfter(true); 

someButton.startAnimation(rotate);

You want to join on condition 1 AND condition 2, so simply use the AND keyword as below

ON a.userid = b.sourceid AND a.listid = b.destinationid;

If you don't "care" about the data you can just do something like:

search_params = params[:search].valid_encoding? ? params[:search].gsub(/\W+/, '') : "nothing"

I just used valid_encoding? to get passed it. Mine is a search field, and so i was finding the same weirdness over and over so I used something like: just to have the system not break. Since i don't control the user experience to autovalidate prior to sending this info (like auto feedback to say "dummy up!") I can just take it in, strip it out and return blank results.

Simplest way

"Mr.".split('.').join("");

..............

Console

With an HTML form like:

<input type="submit" name="btnSubmit" value="Save Changes" />
<input type="submit" name="btnDelete" value="Delete" />

The PHP code to use would look like:

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Something posted

    if (isset($_POST['btnDelete'])) {
        // btnDelete
    } else {
        // Assume btnSubmit
    }
}

You should always assume or default to the first submit button to appear in the form HTML source code. In practice, the various browsers reliably send the name/value of a submit button with the post data when:

1. The user literally clicks the submit button with the mouse or pointing device
2. Or there is focus on the submit button (they tabbed to it), and then the Enter key is pressed.

Other ways to submit a form exist, and some browsers/versions decide not to send the name/value of any submit buttons in some of these situations. For example, many users submit forms by pressing the Enter key when the cursor/focus is on a text field. Forms can also be submitted via JavaScript, as well as some more obscure methods.

It's important to pay attention to this detail, otherwise you can really frustrate your users when they submit a form, yet "nothing happens" and their data is lost, because your code failed to detect a form submission, because you did not anticipate the fact that the name/value of a submit button may not be sent with the post data.

Also, the above advice should be used for forms with a single submit button too because you should always assume a default submit button.

I'm aware that the Internet is filled with tons of form-handler tutorials, and almost of all them do nothing more than check for the name and value of a submit button. But, they're just plain wrong!

Try this through random.shuffle

>>> import random
>>> nums = range(10)
>>> random.shuffle(nums)
>>> nums
[6, 3, 5, 4, 0, 1, 2, 9, 8, 7]

There's no way to guarantee that two functions will execute in sync with each other which seems to be what you want to do.

The best you can do is to split up the function into several steps, then wait for both to finish at critical synchronization points using Process.join like @aix's answer mentions.

This is better than time.sleep(10) because you can't guarantee exact timings. With explicitly waiting, you're saying that the functions must be done executing that step before moving to the next, instead of assuming it will be done within 10ms which isn't guaranteed based on what else is going on on the machine.

Sometimes this works;

sudo apt-get install mongodb-org --fix-missing --fix-broken
sudo apt-get autoremove mongodb-org --fix-missing --fix-broken

Here is a basic example of a global variable that the rest of your functions can access. Here is a live example for you: http://jsfiddle.net/fxCE9/

var myVariable = 'Hello';
alert('value: ' + myVariable);
myFunction1();
alert('value: ' + myVariable);
myFunction2();
alert('value: ' + myVariable);


function myFunction1() {
    myVariable = 'Hello 1';
}

function myFunction2() {
    myVariable = 'Hello 2';
}

If you are doing this within a jQuery ready() function then make sure your variable is inside the ready() function along with your other functions.

1- you need to close the block of the function with '}', which is missing.

2- the argument of querySelector may not be an empty string '' or ' '... Use '*' for all.

3- those arguments will return the needed value:

querySelector('*')

querySelector('input')

querySelector('input[name="pwd"]')

querySelector('[name="pwd"]')

What is returned is milliseconds since epoch. You could do:

var d = new Date();
d.setTime(1245398693390);
document.write(d);

On how to format the date exactly as you want, see full Date reference at http://www.w3schools.com/jsref/jsref_obj_date.asp

You could strip the non-digits by either parsing the integer (as suggested here):

var date = new Date(parseInt(jsonDate.substr(6)));

Or applying the following regular expression (from Tominator in the comments):

var jsonDate = jqueryCall();  // returns "/Date(1245398693390)/"; 
var re = /-?\d+/; 
var m = re.exec(jsonDate); 
var d = new Date(parseInt(m[0]));

My answer is based on the one provided by @x-yuri; but my scenario it's a little bit different. I wanted an image containing the script, not bind without needing to bind-mount it.

mongo-init.sh -- don't know whether or not is need but but I ran chmod +x mongo-init.sh also:

#!/bin/bash
# https://stackoverflow.com/a/53522699
# https://stackoverflow.com/a/37811764
mongo -- "$MONGO_INITDB_DATABASE" <<EOF
  var rootUser = '$MONGO_INITDB_ROOT_USERNAME';
  var rootPassword = '$MONGO_INITDB_ROOT_PASSWORD';
  var user = '$MONGO_INITDB_USERNAME';
  var passwd = '$MONGO_INITDB_PASSWORD';

  var admin = db.getSiblingDB('admin');

  admin.auth(rootUser, rootPassword);
  db.createUser({
    user: user,
    pwd: passwd,
    roles: [
      {
        role: "root",
        db: "admin"
      }
    ]
  });
EOF

Dockerfile:

FROM mongo:3.6

COPY mongo-init.sh /docker-entrypoint-initdb.d/mongo-init.sh

CMD [ "/docker-entrypoint-initdb.d/mongo-init.sh" ]

docker-compose.yml:

version: '3'

services:
    mongodb:
        build: .
        container_name: mongodb-test
        environment:
            - MONGO_INITDB_ROOT_USERNAME=root
            - MONGO_INITDB_ROOT_PASSWORD=example
            - MONGO_INITDB_USERNAME=myproject
            - MONGO_INITDB_PASSWORD=myproject
            - MONGO_INITDB_DATABASE=myproject

    myproject:
        image: myuser/myimage
        restart: on-failure
        container_name: myproject
        environment:
            - DB_URI=mongodb
            - DB_HOST=mongodb-test
            - DB_NAME=myproject
            - DB_USERNAME=myproject
            - DB_PASSWORD=myproject
            - DB_OPTIONS=
            - DB_PORT=27017            
        ports:
            - "80:80"

After that, I went ahead and publish this Dockefile as an image to use in other projects.

note: without adding the CMD it mongo throws: unbound variable error

It is returning the array, but all returning something (including an Array) does is just what it sounds like: returns the value. In your case, you are getting the value of numbers(), which happens to be an array (it could be anything and you would still have this issue), and just letting it sit there.

When a function returns anything, it is essentially replacing the line in which it is called (in your case: numbers();) with the return value. So, what your main method is really executing is essentially the following:

public static void main(String[] args) {
    {1,2,3};
}

Which, of course, will appear to do nothing. If you wanted to do something with the return value, you could do something like this:

public static void main(String[] args){
    int[] result = numbers();
    for (int i=0; i<result.length; i++) {
        System.out.print(result[i]+" ");
    }
}

In python, the str() method is similar to the toString() method in other languages. It is called passing the object to convert to a string as a parameter. Internally it calls the __str__() method of the parameter object to get its string representation.

In this case, however, you are comparing a UserProperty author from the database, which is of type users.User with the nickname string. You will want to compare the nickname property of the author instead with todo.author.nickname in your template.

>>> df.groupby('id').first()
     value
id        
1    first
2    first
3    first
4   second
5    first
6    first
7   fourth

If you need id as column:

>>> df.groupby('id').first().reset_index()
   id   value
0   1   first
1   2   first
2   3   first
3   4  second
4   5   first
5   6   first
6   7  fourth

To get n first records, you can use head():

>>> df.groupby('id').head(2).reset_index(drop=True)
    id   value
0    1   first
1    1  second
2    2   first
3    2  second
4    3   first
5    3   third
6    4  second
7    4   fifth
8    5   first
9    6   first
10   6  second
11   7  fourth
12   7   fifth

Take a look at this:

http://developer.android.com/reference/android/util/DisplayMetrics.html

You can get the heigth of the screen and it's simple math to calculate 68 percent of the screen.

Unlike traditional RBDMs, mongoDB doesn't allow you to define any random field as the primary key, the _id field MUST exist for all standard documents.

For this reason, it doesn't make sense to create a separate uuid field.

In mongoose, the ObjectId type is used not to create a new uuid, rather it is mostly used to reference other documents.

Here is an example:

var mongoose = require('mongoose');

var Schema = mongoose.Schema,
    ObjectId = Schema.ObjectId;
var Schema_Product = new Schema({
    categoryId  : ObjectId, // a product references a category _id with type ObjectId
    title       : String,
    price       : Number
});

As you can see, it wouldn't make much sense to populate categoryId with a ObjectId.

However, if you do want a nicely named uuid field, mongoose provides virtual properties that allow you to proxy (reference) a field.

Check it out:

var mongoose = require('mongoose');

var Schema = mongoose.Schema,
    ObjectId = Schema.ObjectId;
var Schema_Category = new Schema({
    title       : String,
    sortIndex   : String
});

Schema_Category.virtual('categoryId').get(function() {
    return this._id;
});

So now, whenever you call category.categoryId, mongoose just returns the _id instead.

You can also create a "set" method so that you can set virtual properties, check out this link for more info

I encountered this problem today and found this link. I followed as mentioned by Patrick Schaefer above and opened the Update Maven project Dialog. Click on my working project and selected the checkbox "Force Update of Snapshots/Releases" and 'Ok'. All the red cross vanished. I hope this helps anybody in a similar situation.

$('.reset').on('click',function(){
           $('#upload input, #upload select').each(
                function(index){  
                    var input = $(this);
                    if(input.attr('type')=='text'){
                        document.getElementById(input.attr('id')).value = null;
                    }else if(input.attr('type')=='checkbox'){
                        document.getElementById(input.attr('id')).checked = false;
                    }else if(input.attr('type')=='radio'){
                        document.getElementById(input.attr('id')).checked = false;
                    }else{
                        document.getElementById(input.attr('id')).value = '';
                        //alert('Type: ' + input.attr('type') + ' -Name: ' + input.attr('name') + ' -Value: ' + input.val());
                    }
                }
            );
        });

Replacing two characters

I timed all the methods in the current answers along with one extra.

With an input string of abc&def#ghi and replacing & -> \& and # -> \#, the fastest way was to chain together the replacements like this: text.replace('&', '\&').replace('#', '\#').

Timings for each function:

• a) 1000000 loops, best of 3: 1.47 µs per loop
• b) 1000000 loops, best of 3: 1.51 µs per loop
• c) 100000 loops, best of 3: 12.3 µs per loop
• d) 100000 loops, best of 3: 12 µs per loop
• e) 100000 loops, best of 3: 3.27 µs per loop
• f) 1000000 loops, best of 3: 0.817 µs per loop
• g) 100000 loops, best of 3: 3.64 µs per loop
• h) 1000000 loops, best of 3: 0.927 µs per loop
• i) 1000000 loops, best of 3: 0.814 µs per loop

Here are the functions:

def a(text):
    chars = "&#"
    for c in chars:
        text = text.replace(c, "\\" + c)


def b(text):
    for ch in ['&','#']:
        if ch in text:
            text = text.replace(ch,"\\"+ch)


import re
def c(text):
    rx = re.compile('([&#])')
    text = rx.sub(r'\\\1', text)


RX = re.compile('([&#])')
def d(text):
    text = RX.sub(r'\\\1', text)


def mk_esc(esc_chars):
    return lambda s: ''.join(['\\' + c if c in esc_chars else c for c in s])
esc = mk_esc('&#')
def e(text):
    esc(text)


def f(text):
    text = text.replace('&', '\&').replace('#', '\#')


def g(text):
    replacements = {"&": "\&", "#": "\#"}
    text = "".join([replacements.get(c, c) for c in text])


def h(text):
    text = text.replace('&', r'\&')
    text = text.replace('#', r'\#')


def i(text):
    text = text.replace('&', r'\&').replace('#', r'\#')

Timed like this:

python -mtimeit -s"import time_functions" "time_functions.a('abc&def#ghi')"
python -mtimeit -s"import time_functions" "time_functions.b('abc&def#ghi')"
python -mtimeit -s"import time_functions" "time_functions.c('abc&def#ghi')"
python -mtimeit -s"import time_functions" "time_functions.d('abc&def#ghi')"
python -mtimeit -s"import time_functions" "time_functions.e('abc&def#ghi')"
python -mtimeit -s"import time_functions" "time_functions.f('abc&def#ghi')"
python -mtimeit -s"import time_functions" "time_functions.g('abc&def#ghi')"
python -mtimeit -s"import time_functions" "time_functions.h('abc&def#ghi')"
python -mtimeit -s"import time_functions" "time_functions.i('abc&def#ghi')"

Replacing 17 characters

Here's similar code to do the same but with more characters to escape (\`*_{}>#+-.!$):

def a(text):
    chars = "\\`*_{}[]()>#+-.!$"
    for c in chars:
        text = text.replace(c, "\\" + c)


def b(text):
    for ch in ['\\','`','*','_','{','}','[',']','(',')','>','#','+','-','.','!','$','\'']:
        if ch in text:
            text = text.replace(ch,"\\"+ch)


import re
def c(text):
    rx = re.compile('([&#])')
    text = rx.sub(r'\\\1', text)


RX = re.compile('([\\`*_{}[]()>#+-.!$])')
def d(text):
    text = RX.sub(r'\\\1', text)


def mk_esc(esc_chars):
    return lambda s: ''.join(['\\' + c if c in esc_chars else c for c in s])
esc = mk_esc('\\`*_{}[]()>#+-.!$')
def e(text):
    esc(text)


def f(text):
    text = text.replace('\\', '\\\\').replace('`', '\`').replace('*', '\*').replace('_', '\_').replace('{', '\{').replace('}', '\}').replace('[', '\[').replace(']', '\]').replace('(', '\(').replace(')', '\)').replace('>', '\>').replace('#', '\#').replace('+', '\+').replace('-', '\-').replace('.', '\.').replace('!', '\!').replace('$', '\$')


def g(text):
    replacements = {
        "\\": "\\\\",
        "`": "\`",
        "*": "\*",
        "_": "\_",
        "{": "\{",
        "}": "\}",
        "[": "\[",
        "]": "\]",
        "(": "\(",
        ")": "\)",
        ">": "\>",
        "#": "\#",
        "+": "\+",
        "-": "\-",
        ".": "\.",
        "!": "\!",
        "$": "\$",
    }
    text = "".join([replacements.get(c, c) for c in text])


def h(text):
    text = text.replace('\\', r'\\')
    text = text.replace('`', r'\`')
    text = text.replace('*', r'\*')
    text = text.replace('_', r'\_')
    text = text.replace('{', r'\{')
    text = text.replace('}', r'\}')
    text = text.replace('[', r'\[')
    text = text.replace(']', r'\]')
    text = text.replace('(', r'\(')
    text = text.replace(')', r'\)')
    text = text.replace('>', r'\>')
    text = text.replace('#', r'\#')
    text = text.replace('+', r'\+')
    text = text.replace('-', r'\-')
    text = text.replace('.', r'\.')
    text = text.replace('!', r'\!')
    text = text.replace('$', r'\$')


def i(text):
    text = text.replace('\\', r'\\').replace('`', r'\`').replace('*', r'\*').replace('_', r'\_').replace('{', r'\{').replace('}', r'\}').replace('[', r'\[').replace(']', r'\]').replace('(', r'\(').replace(')', r'\)').replace('>', r'\>').replace('#', r'\#').replace('+', r'\+').replace('-', r'\-').replace('.', r'\.').replace('!', r'\!').replace('$', r'\$')

Here's the results for the same input string abc&def#ghi:

• a) 100000 loops, best of 3: 6.72 µs per loop
• b) 100000 loops, best of 3: 2.64 µs per loop
• c) 100000 loops, best of 3: 11.9 µs per loop
• d) 100000 loops, best of 3: 4.92 µs per loop
• e) 100000 loops, best of 3: 2.96 µs per loop
• f) 100000 loops, best of 3: 4.29 µs per loop
• g) 100000 loops, best of 3: 4.68 µs per loop
• h) 100000 loops, best of 3: 4.73 µs per loop
• i) 100000 loops, best of 3: 4.24 µs per loop

And with a longer input string (## *Something* and [another] thing in a longer sentence with {more} things to replace$):

• a) 100000 loops, best of 3: 7.59 µs per loop
• b) 100000 loops, best of 3: 6.54 µs per loop
• c) 100000 loops, best of 3: 16.9 µs per loop
• d) 100000 loops, best of 3: 7.29 µs per loop
• e) 100000 loops, best of 3: 12.2 µs per loop
• f) 100000 loops, best of 3: 5.38 µs per loop
• g) 10000 loops, best of 3: 21.7 µs per loop
• h) 100000 loops, best of 3: 5.7 µs per loop
• i) 100000 loops, best of 3: 5.13 µs per loop

Adding a couple of variants:

def ab(text):
    for ch in ['\\','`','*','_','{','}','[',']','(',')','>','#','+','-','.','!','$','\'']:
        text = text.replace(ch,"\\"+ch)


def ba(text):
    chars = "\\`*_{}[]()>#+-.!$"
    for c in chars:
        if c in text:
            text = text.replace(c, "\\" + c)

With the shorter input:

• ab) 100000 loops, best of 3: 7.05 µs per loop
• ba) 100000 loops, best of 3: 2.4 µs per loop

With the longer input:

• ab) 100000 loops, best of 3: 7.71 µs per loop
• ba) 100000 loops, best of 3: 6.08 µs per loop

So I'm going to use ba for readability and speed.

Addendum

Prompted by haccks in the comments, one difference between ab and ba is the if c in text: check. Let's test them against two more variants:

def ab_with_check(text):
    for ch in ['\\','`','*','_','{','}','[',']','(',')','>','#','+','-','.','!','$','\'']:
        if ch in text:
            text = text.replace(ch,"\\"+ch)

def ba_without_check(text):
    chars = "\\`*_{}[]()>#+-.!$"
    for c in chars:
        text = text.replace(c, "\\" + c)

Times in µs per loop on Python 2.7.14 and 3.6.3, and on a different machine from the earlier set, so cannot be compared directly.

?-------------------------------------------------------------?
¦ Py, input  ¦  ab  ¦ ab_with_check ¦  ba  ¦ ba_without_check ¦
¦------------+------+---------------+------+------------------¦
¦ Py2, short ¦ 8.81 ¦    4.22       ¦ 3.45 ¦    8.01          ¦
¦ Py3, short ¦ 5.54 ¦    1.34       ¦ 1.46 ¦    5.34          ¦
+------------+------+---------------+------+------------------¦
¦ Py2, long  ¦ 9.3  ¦    7.15       ¦ 6.85 ¦    8.55          ¦
¦ Py3, long  ¦ 7.43 ¦    4.38       ¦ 4.41 ¦    7.02          ¦
+-------------------------------------------------------------+

We can conclude that:

• Those with the check are up to 4x faster than those without the check

• ab_with_check is slightly in the lead on Python 3, but ba (with check) has a greater lead on Python 2

• However, the biggest lesson here is Python 3 is up to 3x faster than Python 2! There's not a huge difference between the slowest on Python 3 and fastest on Python 2!

Today, in the year 2016, it is save to use document.querySelector without knowing the ID (especially if you have more than 2 radio buttons):

document.querySelector("input[name=main-categories]:checked").value

I think you mean:

unsigned long n;
printf("%lu", n);   // unsigned long

or

long n;
printf("%ld", n);   // signed long

$_SERVER['HTTP_REFERER'];

But if you run a file (that contains the above code) by directly hitting the URL in the browser then you get the following error.

Notice: Undefined index: HTTP_REFERER

Some additional steps may be needed to set both the project and default workspace JRE correctly, as MayoMan mentioned. Here is the complete sequence in Eclipse Luna:

• Right click your project > properties
• Select “Java Build Path” on left, then “JRE System Library”, click Edit…
• Select "Workspace Default JRE"
• Click "Installed JREs"
• If you see JRE you want in the list select it (selecting a JDK is OK too)
• If not, click Search…, navigate to Computer > Windows C: > Program Files > Java, then click OK
• Now you should see all installed JREs, select the one you want
• Click OK/Finish a million times

Easy.... not.

Simply declare this code to get device width

let deviceWidth = Dimensions.get('window').width

Maybe it's obviously but, Dimensions is an react-native import

import { Dimensions } from 'react-native'

Dimensions will not work without that

I know this is a little old question, but things changed. Laravel isn't that slow. It's, as mentioned, synced folders are slow. However, on Windows 10 I wasn't able to use rsync. I tried both cygwin and minGW. It seems like rsync is incompatible with git for windows's version of ssh.

Here is what worked for me: NFS.

Vagrant docs says:

NFS folders do not work on Windows hosts. Vagrant will ignore your request for NFS synced folders on Windows.

This isn't true anymore. We can use vagrant-winnfsd plugin nowadays. It's really simple to install:

1. Execute vagrant plugin install vagrant-winnfsd
2. Change in your Vagrantfile: config.vm.synced_folder ".", "/vagrant", type: "nfs"
3. Add to Vagrantfile: config.vm.network "private_network", type: "dhcp"

That's all I needed to make NFS work. Laravel response time decreased from 500ms to 100ms for me.

I have a complicated Web App and I couldn't figure out exactly why this error was being thrown. It was causing the JavaScript to abort when thrown.

In select2.js I changed:

        if (typeof(opts.query) !== "function") {
            throw "query function not defined for Select2 " + opts.element.attr("id");
        }

to:

        if (typeof(opts.query) !== "function") {
            console.error("query function not defined for Select2 " + opts.element.attr("id"));
        }

Now everything seems to work properly but it is still logging in error in case I want to try and figure out what exactly in my code is causing the error. But for now this is a good enough fix for me.

foreach (DataGridViewRow row in GridView2.Rows)
            {
                if ( ! row.IsNewRow)
                {
                    for (int i = 0; i < GridView2.Columns.Count; i++)
                    {
                        String header = GridView2.Columns[i].HeaderText;
                        String cellText = Convert.ToString(row.Cells[i].Value);
                    }
                }
            }

Here Before Iterating for cell Values need to check for NewRow.

try this one, user json to serialize and deserialize:

 using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Web.Script.Serialization;

    namespace ConsoleApplication1
    {
       public class Program
       {
          static void Main(string[] args)
          {
              object newobj = new object();

              for (int i = 0; i < 10; i++)
              {
                List<int> temp = new List<int>();

                temp.Add(i);
                temp.Add(i + 1);

                 newobj = newobj.AddNewField("item_" + i.ToString(), temp.ToArray());
              }

         }

     }

      public static class DynamicExtention
      {
          public static object AddNewField(this object obj, string key, object value)
          {
              JavaScriptSerializer js = new JavaScriptSerializer();

              string data = js.Serialize(obj);

              string newPrametr = "\"" + key + "\":" + js.Serialize(value);

              if (data.Length == 2)
             {
                 data = data.Insert(1, newPrametr);
              }
            else
              {
                  data = data.Insert(data.Length-1, ","+newPrametr);
              }

              return js.DeserializeObject(data);
          }
      }
   }

You can use simple way for genarate RSA . Use rsa library

pip install rsa 

It is a little tricky. First you can use keytool to put the private key into PKCS12 format, which is more portable/compatible than Java's various keystore formats. Here is an example taking a private key with alias 'mykey' in a Java keystore and copying it into a PKCS12 file named myp12file.p12. [note that on most screens this command extends beyond the right side of the box: you need to scroll right to see it all]

keytool -v -importkeystore -srckeystore .keystore -srcalias mykey -destkeystore myp12file.p12 -deststoretype PKCS12
Enter destination keystore password:  
Re-enter new password: 
Enter source keystore password:  
[Storing myp12file.p12]

Now the file myp12file.p12 contains the private key in PKCS12 format which may be used directly by many software packages or further processed using the openssl pkcs12 command. For example,

openssl pkcs12 -in myp12file.p12 -nocerts -nodes
Enter Import Password:
MAC verified OK
Bag Attributes
    friendlyName: mykey
    localKeyID: 54 69 6D 65 20 31 32 37 31 32 37 38 35 37 36 32 35 37 
Key Attributes: <No Attributes>
-----BEGIN RSA PRIVATE KEY-----
MIIC...
.
.
.
-----END RSA PRIVATE KEY-----

Prints out the private key unencrypted.

Note that this is a private key, and you are responsible for appreciating the security implications of removing it from your Java keystore and moving it around.

You could also set it in the create table statement.

`CREATE TABLE(...) AUTO_INCREMENT=1000`

In case you don't have access to functools.partial, you could use a wrapper function for this, as well.

def target(lock):
    def wrapped_func(items):
        for item in items:
            # Do cool stuff
            if (... some condition here ...):
                lock.acquire()
                # Write to stdout or logfile, etc.
                lock.release()
    return wrapped_func

def main():
    iterable = [1, 2, 3, 4, 5]
    pool = multiprocessing.Pool()
    lck = multiprocessing.Lock()
    pool.map(target(lck), iterable)
    pool.close()
    pool.join()

This makes target() into a function that accepts a lock (or whatever parameters you want to give), and it will return a function that only takes in an iterable as input, but can still use all your other parameters. That's what is ultimately passed in to pool.map(), which then should execute with no problems.

I know this question got great answers already but I wish to add the following method using numpy.

temp1 = ['One', 'Two', 'Three', 'Four']
temp2 = ['One', 'Two']

list(np.setdiff1d(temp1,temp2))

['Four', 'Three'] #Output

For the example case above, it is usually omitted, yes. However, either way is syntactically correct.

This solves the problem:

df['newcolumn'] = df.A * df.B

You could also do:

def fab(row):
  return row['A'] * row['B']

df['newcolumn'] = df.apply(fab, axis=1)

Use casting of types:

int main() {
    int a;
    float b, c, d;
    a = 750;
    b = a / (float)350;
    c = 750;
    d = c / (float)350;
    printf("%.2f %.2f", b, d);
    // output: 2.14 2.14
}

This is another way to solve that:

 int main() {
        int a;
        float b, c, d;
        a = 750;
        b = a / 350.0; //if you use 'a / 350' here, 
                       //then it is a division of integers, 
                       //so the result will be an integer
        c = 750;
        d = c / 350;
        printf("%.2f %.2f", b, d);
        // output: 2.14 2.14
    }

However, in both cases you are telling the compiler that 350 is a float, and not an integer. Consequently, the result of the division will be a float, and not an integer.

I believe you want to set the Content property. This has more information on what is available to a label.

You can try using fast-export:

cd ~
git clone https://github.com/frej/fast-export.git
git init git_repo
cd git_repo
~/fast-export/hg-fast-export.sh -r /path/to/old/mercurial_repo
git checkout HEAD

Also have a look at this SO question.

If you're using Mercurial version below 4.6, adrihanu got your back:

As he stated in his comment: "In case you use Mercurial < 4.6 and you got "revsymbol not found" error. You need to update your Mercurial or downgrade fast-export by running git checkout tags/v180317 inside ~/fast-export directory.".

You'll have to pass the pointer to the vector, not the vector itself. Note the additional '&' here:

found = binarySearch(first, last, search4, &random);

Had the same error when installing PhantomJS on Ubuntu 14.04 64bit with gcc-4.8 (CXXABI_1.3.7)

Upgrading to gcc-4.9 (CXXABI_1.3.8) fixed the issue. HOWTO: https://askubuntu.com/questions/466651/how-do-i-use-the-latest-gcc-4-9-on-ubuntu-14-04

The summary is that I found ECMerge to be a great, though commercial product. http://www.elliecomputing.com/products/merge_overview.asp

I also agree with MrTelly that Ultracompare is very good. One nice feature is that it will compare RTF and Word docs, which is handy when you end up programming in word with the sales guys and they don't manage their docs correctly.

Frustratingly, you have to enable showing the dividers from code in your activity. For example:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Set the view to your layout
    setContentView(R.layout.yourlayout);

    // Find the LinearLayout within and enable the divider
    ((LinearLayout)v.findViewById(R.id.llTopBar)).
        setShowDividers(LinearLayout.SHOW_DIVIDER_MIDDLE);

}

I believe this is what was asked for. I only tested this on a little endian machine under msvc. Someone plese confirm on a big endian machine.

    #define LITTLE_ENDIAN 0x41424344UL 
    #define BIG_ENDIAN    0x44434241UL
    #define PDP_ENDIAN    0x42414443UL
    #define ENDIAN_ORDER  ('ABCD') 

    #if ENDIAN_ORDER==LITTLE_ENDIAN
        #error "machine is little endian"
    #elif ENDIAN_ORDER==BIG_ENDIAN
        #error "machine is big endian"
    #elif ENDIAN_ORDER==PDP_ENDIAN
        #error "jeez, machine is PDP!"
    #else
        #error "What kind of hardware is this?!"
    #endif

As a side note (compiler specific), with an aggressive compiler you can use "dead code elimination" optimization to achieve the same effect as a compile time #if like so:

    unsigned yourOwnEndianSpecific_htonl(unsigned n)
    {
        static unsigned long signature= 0x01020304UL; 
        if (1 == (unsigned char&)signature) // big endian
            return n;
        if (2 == (unsigned char&)signature) // the PDP style
        {
            n = ((n << 8) & 0xFF00FF00UL) | ((n>>8) & 0x00FF00FFUL);
            return n;
        }
        if (4 == (unsigned char&)signature) // little endian
        {
            n = (n << 16) | (n >> 16);
            n = ((n << 8) & 0xFF00FF00UL) | ((n>>8) & 0x00FF00FFUL);
            return n;
        }
        // only weird machines get here
        return n; // ?
    }

The above relies on the fact that the compiler recognizes the constant values at compile time, entirely removes the code within if (false) { ... } and replaces code like if (true) { foo(); } with foo(); The worst case scenario: the compiler does not do the optimization, you still get correct code but a bit slower.

The Read method takes a byte parameter because that is the buffer it will read into. It's a common Idiom in some circles and makes some sense when you think about it.

This way you can determine how many bytes will be read by the reader and inspect the return to see how many bytes actually were read and handle any errors appropriately.

As others have pointed in their answers bufio is probably what you want for reading from most files.

I'll add one other hint since it's really useful. Reading a line from a file is best accomplished not by the ReadLine method but the ReadBytes or ReadString method instead.

What I did to solve this problem is

1. Go to NuGet package manager.

2. Select Updates (from the left panel)

3. Update WebApi components

4. After that, the project ran without errors.

This issue often happens when we try to merge another branch changes from a wrong directory.

Ex:

Branch2\Branch1_SubDir$ svn merge -rStart:End Branch1
         ^^^^^^^^^^^^
   Merging at wrong location

A conflict that gets thrown on its execution is :

Tree conflict on 'Branch1_SubDir'
   > local missing or deleted or moved away, incoming dir edit upon merge

And when you select q to quit resolution, you get status as:

 M      .
!     C Branch1_SubDir
      >   local missing or deleted or moved away, incoming dir edit upon merge
!     C Branch1_AnotherSubDir
      >   local missing or deleted or moved away, incoming dir edit upon merge

which clearly means that the merge contains changes related to Branch1_SubDir and Branch1_AnotherSubDir, and these folders couldn't be found inside Branch1_SubDir(obviously a directory can't be inside itself).

How to avoid this issue at first place:

Branch2$ svn merge -rStart:End Branch1
 ^^^^
Merging at root location

The simplest fix for this issue that worked for me :

svn revert -R .

There is a library that will do all of this for you, check out mongoose-paginate-v2

Follow the steps given below:

1. Stop your MySQL server completely. This can be done by accessing the Services window inside Windows XP and Windows Server 2003, where you can stop the MySQL service.

2. Open your MS-DOS command prompt using "cmd" inside the Run window. Inside it navigate to your MySQL bin folder, such as C:\MySQL\bin using the cd command.

3. Execute the following command in the command prompt: mysqld.exe -u root --skip-grant-tables

4. Leave the current MS-DOS command prompt as it is, and open a new MS-DOS command prompt window.

5. Navigate to your MySQL bin folder, such as C:\MySQL\bin using the cd command.

6. Enter mysql and press enter.

7. You should now have the MySQL command prompt working. Type use mysql; so that we switch to the "mysql" database.

8. Execute the following command to update the password:

   UPDATE user SET Password = PASSWORD('NEW_PASSWORD') WHERE User = 'root'; 
   

However, you can now run any SQL command that you wish.

After you are finished close the first command prompt and type exit; in the second command prompt windows to disconnect successfully. You can now start the MySQL service.

Since sudo will not work with redirection >, I like the tee command for this purpose

echo "" | sudo tee fileName

Windows: left Ctrl + F12

Mac: Fn + Ctrl + F12

To get the selected value of a spinner you can follow this example.

Create a nested class that implements AdapterView.OnItemSelectedListener. This will provide a callback method that will notify your application when an item has been selected from the Spinner.

Within "onItemSelected" method of that class, you can get the selected item:

public class YourItemSelectedListener implements OnItemSelectedListener {

    public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
        String selected = parent.getItemAtPosition(pos).toString();
    }

    public void onNothingSelected(AdapterView parent) {
        // Do nothing.
    }
}

Finally, your ItemSelectedListener needs to be registered in the Spinner:

spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());

Now that you have provided your HTML sample, we're able to see that your XPath is slightly wrong. While it's valid XPath, it's logically wrong.

You've got:

//*[contains(@id, 'ctl00_btnAircraftMapCell')]//*[contains(@title, 'Select Seat')]

Which translates into:

Get me all the elements that have an ID that contains ctl00_btnAircraftMapCell. Out of these elements, get any child elements that have a title that contains Select Seat.

What you actually want is:

//a[contains(@id, 'ctl00_btnAircraftMapCell') and contains(@title, 'Select Seat')]

Which translates into:

Get me all the anchor elements that have both: an id that contains ctl00_btnAircraftMapCell and a title that contains Select Seat.

print(df.to_csv(sep='\t', index=False))

Or possibly:

print(df.to_csv(columns=['A', 'B', 'C'], sep='\t', index=False))

A list can be sorted and deduplicated using built-in functions:

myList = sorted(set(myList))

• set is a built-in function for Python >= 2.3
• sorted is a built-in function for Python >= 2.4

You just have to right-click on the widget and choose "center" -> "horizontally" and do it again then choose ->"vertically" This worked for me...

You should use webpack here to make your life easier. Add below rule in your config:

const srcPath = path.join(__dirname, '..', 'publicfolder')

const rules = []

const includePaths = [
  srcPath
]
    // handle images
    rules.push({
      test: /\.(png|gif|jpe?g|svg|ico)$/,
      include: includePaths,
      use: [{
        loader: 'file-loader',
        options: {
          name: 'images/[name]-[hash].[ext]'
        }
      }

After this, you can simply import the images into your react components:

import myImage from 'publicfolder/images/Image1.png'

Use myImage like below:

<div><img src={myImage}/></div>

or if the image is imported into local state of component

<div><img src={this.state.myImage}/></div> 

I find that generating random colors tends to create colors that do not have enough contrast for my taste. The easiest way I have found to get around that is to pre-populate a list of very different colors. For every new string, assign the next color in the list:

// Takes any string and converts it into a #RRGGBB color.
var StringToColor = (function(){
    var instance = null;

    return {
    next: function stringToColor(str) {
        if(instance === null) {
            instance = {};
            instance.stringToColorHash = {};
            instance.nextVeryDifferntColorIdx = 0;
            instance.veryDifferentColors = ["#000000","#00FF00","#0000FF","#FF0000","#01FFFE","#FFA6FE","#FFDB66","#006401","#010067","#95003A","#007DB5","#FF00F6","#FFEEE8","#774D00","#90FB92","#0076FF","#D5FF00","#FF937E","#6A826C","#FF029D","#FE8900","#7A4782","#7E2DD2","#85A900","#FF0056","#A42400","#00AE7E","#683D3B","#BDC6FF","#263400","#BDD393","#00B917","#9E008E","#001544","#C28C9F","#FF74A3","#01D0FF","#004754","#E56FFE","#788231","#0E4CA1","#91D0CB","#BE9970","#968AE8","#BB8800","#43002C","#DEFF74","#00FFC6","#FFE502","#620E00","#008F9C","#98FF52","#7544B1","#B500FF","#00FF78","#FF6E41","#005F39","#6B6882","#5FAD4E","#A75740","#A5FFD2","#FFB167","#009BFF","#E85EBE"];
        }

        if(!instance.stringToColorHash[str])
            instance.stringToColorHash[str] = instance.veryDifferentColors[instance.nextVeryDifferntColorIdx++];

            return instance.stringToColorHash[str];
        }
    }
})();

// Get a new color for each string
StringToColor.next("get first color");
StringToColor.next("get second color");

// Will return the same color as the first time
StringToColor.next("get first color");

While this has a limit to only 64 colors, I find most humans can't really tell the difference after that anyway. I suppose you could always add more colors.

While this code uses hard-coded colors, you are at least guaranteed to know during development exactly how much contrast you will see between colors in production.

Color list has been lifted from this SO answer, there are other lists with more colors.

You can find the sample code on the wikibooks link

/**************************************************************
 * A simpler and shorter implementation of ls(1)
 * ls(1) is very similar to the DIR command on DOS and Windows.
 **************************************************************/
#include <stdio.h>
#include <dirent.h>

int listdir(const char *path) 
{
  struct dirent *entry;
  DIR *dp;

  dp = opendir(path);
  if (dp == NULL) 
  {
    perror("opendir");
    return -1;
  }

  while((entry = readdir(dp)))
    puts(entry->d_name);

  closedir(dp);
  return 0;
}

int main(int argc, char **argv) {
  int counter = 1;

  if (argc == 1)
    listdir(".");

  while (++counter <= argc) {
    printf("\nListing %s...\n", argv[counter-1]);
    listdir(argv[counter-1]);
  }

  return 0;
}

Construct some data

df <- data.frame( name=c("John", "Adam"), date=c(3, 5) )

Extract exact matches:

subset(df, date==3)

  name date
1 John    3

Extract matches in range:

subset(df, date>4 & date<6)

  name date
2 Adam    5

The following syntax produces identical results:

df[df$date>4 & df$date<6, ]

  name date
2 Adam    5

There are multiple ways to do it. If you have the string which you want to replace you can use the replace or replaceAll methods of the String class. If you are looking to replace a substring you can get the substring using the substring API.

For example

String str = "manchester united (with nice players)";
System.out.println(str.replace("(with nice players)", ""));
int index = str.indexOf("(");
System.out.println(str.substring(0, index));

To replace content within "()" you can use:

int startIndex = str.indexOf("(");
int endIndex = str.indexOf(")");
String replacement = "I AM JUST A REPLACEMENT";
String toBeReplaced = str.substring(startIndex + 1, endIndex);
System.out.println(str.replace(toBeReplaced, replacement));

One hackish way to define an exit method in context:

class Bar; def exit; end; end 

This works because exit in the initializer will be resolved as self.exit¹. In addition, this approach allows using the object after it has been created, as in: b = B.new.

But really, one shouldn't be doing this: don't have exit (or even puts) there to begin with.

(And why is there an "infinite" loop and/or user input in an intiailizer? This entire problem is primarily the result of poorly structured code.)

¹ Remember Kernel#exit is only a method. Since Kernel is included in every Object, then it's merely the case that exit normally resolves to Object#exit. However, this can be changed by introducing an overridden method as shown - nothing fancy.

You can use a lightweight library pure-md5. Just a 4.7kb.

$("#file-dialog").change(function() {_x000D_
  handleFiles(this.files);_x000D_
});_x000D_
_x000D_
function handleFiles(files) {_x000D_
  for (var index = 0; index < files.length; index++) {_x000D_
    var file = files[index];_x000D_
    var fileReader = new FileReader();_x000D_
    fileReader.onload = function(e) {_x000D_
      $('body').append(`_x000D_
        <div style="margin-top: 2rem;">_x000D_
          <span>${file.name}: </span>_x000D_
          <span>${(md5(e.target.result))}</span>_x000D_
        </div>_x000D_
      `);_x000D_
    }_x000D_
_x000D_
    fileReader.readAsText(file, 'utf-8');_x000D_
  }_x000D_
_x000D_
}

body {_x000D_
  font-family: sans-serif;_x000D_
}

<script src="https://unpkg.com/[email protected]/lib/index.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<input type="file" id="file-dialog" multiple="true" accept="image/*">

I use a lot the Fogbguz plug in but well you need to use Fogbugz first !!!

Simple Steps to installed pod file:

1. Open terminal 2.Command on terminal: sudo gem install cocoapods

2. set your project path on terminal.

3. command : pod init

4. go to pod file of your project and adding pod which you want to install

5. added in pod file : pod 'AFNetworking', '~> 3.0

6. Command : Pod install

7. Close project of Xcode

8. open your Project from terminals

9. Command : open PodDemos.xcworkspace

i found textView.setTypeface(Typeface.DEFAULT_BOLD); to be the simplest method.

I used

SELECT * FROM TABLE(SYSPROC.ENV_GET_INST_INFO()); 

from tyranitar and that worked on Z/OS. Here's what I got:

SERVICE_LEVEL
DB2 v9.7.0.6

I'd vote up if I could! Thanks!!

I got the same error while trying to add an fk. In my case the problem was caused by the FK table's PK which was marked as unsigned.

this looks like PHP to me. I'll delete if it's some other language.

Simply unset($arr[1]);

If your running php5 you can use:

$url = 'http://www.example.com';
print_r(get_headers($url, 1));

Alternatively with php4 a user has contributed the following:

/**
This is a modified version of code from "stuart at sixletterwords dot com", at 14-Sep-2005 04:52. This version tries to emulate get_headers() function at PHP4. I think it works fairly well, and is simple. It is not the best emulation available, but it works.

Features:
- supports (and requires) full URLs.
- supports changing of default port in URL.
- stops downloading from socket as soon as end-of-headers is detected.

Limitations:
- only gets the root URL (see line with "GET / HTTP/1.1").
- don't support HTTPS (nor the default HTTPS port).
*/

if(!function_exists('get_headers'))
{
    function get_headers($url,$format=0)
    {
        $url=parse_url($url);
        $end = "\r\n\r\n";
        $fp = fsockopen($url['host'], (empty($url['port'])?80:$url['port']), $errno, $errstr, 30);
        if ($fp)
        {
            $out  = "GET / HTTP/1.1\r\n";
            $out .= "Host: ".$url['host']."\r\n";
            $out .= "Connection: Close\r\n\r\n";
            $var  = '';
            fwrite($fp, $out);
            while (!feof($fp))
            {
                $var.=fgets($fp, 1280);
                if(strpos($var,$end))
                    break;
            }
            fclose($fp);

            $var=preg_replace("/\r\n\r\n.*\$/",'',$var);
            $var=explode("\r\n",$var);
            if($format)
            {
                foreach($var as $i)
                {
                    if(preg_match('/^([a-zA-Z -]+): +(.*)$/',$i,$parts))
                        $v[$parts[1]]=$parts[2];
                }
                return $v;
            }
            else
                return $var;
        }
    }
}

Both would have a result similar to:

Array
(
    [0] => HTTP/1.1 200 OK
    [Date] => Sat, 29 May 2004 12:28:14 GMT
    [Server] => Apache/1.3.27 (Unix)  (Red-Hat/Linux)
    [Last-Modified] => Wed, 08 Jan 2003 23:11:55 GMT
    [ETag] => "3f80f-1b6-3e1cb03b"
    [Accept-Ranges] => bytes
    [Content-Length] => 438
    [Connection] => close
    [Content-Type] => text/html
)

Therefore you could just check to see that the header response was OK eg:

$headers = get_headers($url, 1);
if ($headers[0] == 'HTTP/1.1 200 OK') {
//valid 
}

if ($headers[0] == 'HTTP/1.1 301 Moved Permanently') {
//moved or redirect page
}

W3C Codes and Definitions

Install jquery

Terminal$ npm install jquery

(For bootstrap 4...)

Terminal$ npm install popper.js

Terminal$ npm install bootstrap

Then add the import statement to app.module.ts.

import 'jquery'

(For bootstrap 4...)

import 'popper.js'
import 'bootstrap'

Now you will no longer need <SCRIPT> tags to reference the JavaScript.

(Any CSS you want to use still has to be referenced in styles.css)

@import "~bootstrap/dist/css/bootstrap.min.css";

You could try letting the stream throw an exception on failure:

std::ifstream f;
//prepare f to throw if failbit gets set
std::ios_base::iostate exceptionMask = f.exceptions() | std::ios::failbit;
f.exceptions(exceptionMask);

try {
  f.open(fileName);
}
catch (std::ios_base::failure& e) {
  std::cerr << e.what() << '\n';
}

e.what(), however, does not seem to be very helpful:

• I tried it on Win7, Embarcadero RAD Studio 2010 where it gives "ios_base::failbit set" whereas strerror(errno) gives "No such file or directory."
• On Ubuntu 13.04, gcc 4.7.3 the exception says "basic_ios::clear" (thanks to arne)

If e.what() does not work for you (I don't know what it will tell you about the error, since that's not standardized), try using std::make_error_condition (C++11 only):

catch (std::ios_base::failure& e) {
  if ( e.code() == std::make_error_condition(std::io_errc::stream) )
    std::cerr << "Stream error!\n"; 
  else
    std::cerr << "Unknown failure opening file.\n";
}

You can generate class as described above, or write them manually:

[XmlRoot("msg")]
public class Message
{
    [XmlElement("id")]
    public string Id { get; set; }
    [XmlElement("action")]
    public string Action { get; set; }
}

Then you can use ExtendedXmlSerializer to serialize and deserialize.

Instalation You can install ExtendedXmlSerializer from nuget or run the following command:

Install-Package ExtendedXmlSerializer

Serialization:

var serializer = new ConfigurationContainer().Create();
var obj = new Message();
var xml = serializer.Serialize(obj);

Deserialization

var obj2 = serializer.Deserialize<Message>(xml);

This serializer support:

• Deserialization xml from standard XMLSerializer
• Serialization class, struct, generic class, primitive type, generic list and dictionary, array, enum
• Serialization class with property interface
• Serialization circular reference and reference Id
• Deserialization of old version of xml
• Property encryption
• Custom serializer
• Support XmlElementAttribute and XmlRootAttribute
• POCO - all configurations (migrations, custom serializer...) are outside the class

ExtendedXmlSerializer support .NET 4.5 or higher and .NET Core. You can integrate it with WebApi and AspCore.

Both of the following code will work fine for removing highchart.com from the chart:-

credits: false

or

credits:{
 enabled:false,
}

Try this :

Windows:

Fire below commands in CMD to start a new instance of chrome browser with disabled security

Go to Chrome folder:

cd C:\Program Files (x86)\Google\Chrome\Application

Run below command:

chrome.exe --disable-web-security --user-data-dir=c:\my-chrome-data\data

MAC OS:

Run this command in terminal:

open -n -a /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --args --user-data-dir="/tmp/chrome_dev_sess_1" --disable-web-security

Hope this will help both Windows & Mac users!

I've found this approach to be the most helpful especially when it comes to pdfs and random other files.

import fs from "fs";

  fs.appendFile("output_file_name.ext", fileDataInBytes, (err) => {
    if (err) throw err;
    console.log("File saved!");
  });

I use this SFTP API which has SCP called Zehon, it's great, so easy to use with a lot of sample code. Here is the site http://www.zehon.com

This works for me in Ansible 2.9:

variable1 = www.example.com. 
variable2 = www.example.org. 

when: ".com" in variable1

and for not:

when: not ".com" in variable2

I have just discovered a way to append text and its working fine at least.

 var text = 'Put any text here';
 $('#text').append(text);

You can change text according to your need.

Hope this helps.

ref: NSUserdefault objectTypes

Swift 3 and above

Store

UserDefaults.standard.set(true, forKey: "Key") //Bool
UserDefaults.standard.set(1, forKey: "Key")  //Integer
UserDefaults.standard.set("TEST", forKey: "Key") //setObject

Retrieve

 UserDefaults.standard.bool(forKey: "Key")
 UserDefaults.standard.integer(forKey: "Key")
 UserDefaults.standard.string(forKey: "Key")

Remove

 UserDefaults.standard.removeObject(forKey: "Key")

Remove all Keys

 if let appDomain = Bundle.main.bundleIdentifier {
UserDefaults.standard.removePersistentDomain(forName: appDomain)
 }

Swift 2 and below

Store

NSUserDefaults.standardUserDefaults().setObject(newValue, forKey: "yourkey")
NSUserDefaults.standardUserDefaults().synchronize()

Retrieve

  var returnValue: [NSString]? = NSUserDefaults.standardUserDefaults().objectForKey("yourkey") as? [NSString]

Remove

 NSUserDefaults.standardUserDefaults().removeObjectForKey("yourkey")

registerDefaults: adds the registrationDictionary to the last item in every search list. This means that after NSUserDefaults has looked for a value in every other valid location, it will look in registered defaults, making them useful as a "fallback" value. Registered defaults are never stored between runs of an application, and are visible only to the application that registers them.

Default values from Defaults Configuration Files will automatically be registered.

for example detect the app from launch , create the struct for save launch

struct DetectLaunch {
static let keyforLaunch = "validateFirstlunch"
static var isFirst: Bool {
    get {
        return UserDefaults.standard.bool(forKey: keyforLaunch)
    }
    set {
        UserDefaults.standard.set(newValue, forKey: keyforLaunch)
    }
}
}

Register default values on app launch:

UserDefaults.standard.register(defaults: [
        DetectLaunch.isFirst: true
    ])

remove the value on app termination:

func applicationWillTerminate(_ application: UIApplication) {
    DetectLaunch.isFirst = false

}

and check the condition as

if DetectLaunch.isFirst {
  // app launched from first
}

UserDefaults suite name

another one property suite name, mostly its used for App Groups concept, the example scenario I taken from here :

The use case is that I want to separate my UserDefaults (different business logic may require Userdefaults to be grouped separately) by an identifier just like Android's SharedPreferences. For example, when a user in my app clicks on logout button, I would want to clear his account related defaults but not location of the the device.

let user = UserDefaults(suiteName:"User")

use of userDefaults synchronize, the detail info has added in the duplicate answer.

I guess you want to use to edit the json text. Then you can use ivarni's way:

{{data | json}}

 editable

<pre contenteditable="true">{{data | json}}</pre>

Hope this can help you.

A function returns a value and a procedure just executes commands.

The name function comes from math. It is used to calculate a value based on input.

A procedure is a set of commands which can be executed in order.

In most programming languages, even functions can have a set of commands. Hence the difference is only returning a value.

But if you like to keep a function clean, (just look at functional languages), you need to make sure a function does not have a side effect.

pip is bundled with Python > 3.4

On Unix-like systems use:

python3.6 -m pip install [Package_to_install]

On a Windows system use:

py -m pip install [Package_to_install]

(On Windows you may need to run the command prompt as administrator to be able to write into python installation directory)

You should configure your bin folder path to service local bin.

You can do this with @Html.CheckBoxFor():

@Html.CheckBoxFor(m => m.AllowRating, new{@checked=true });

or you can also do this with a simple @Html.CheckBox():

@Html.CheckBox("AllowRating", true) ;

Here is example of taking XML file from raw folder:

 InputStream XmlFileInputStream = getResources().openRawResource(R.raw.taskslists5items); // getting XML

Then you can:

 String sxml = readTextFile(XmlFileInputStream);

when:

 public String readTextFile(InputStream inputStream) {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

        byte buf[] = new byte[1024];
        int len;
        try {
            while ((len = inputStream.read(buf)) != -1) {
                outputStream.write(buf, 0, len);
            }
            outputStream.close();
            inputStream.close();
        } catch (IOException e) {

        }
        return outputStream.toString();
    }

 "foobar".gsub(/(o+)/){|s|s+'ball'}
 #=> "fooballbar"

Try adding use PDO; after your namespace or just before your class or at the top of your PHP file.

Git revert only accepts commits

From the docs:

Given one or more existing commits, revert the changes that the related patches introduce ...

myFile is intepretted as a commit - because git revert doesn't accept file paths; only commits

Change one file to match a previous commit

To change one file to match a previous commit - use git checkout

git checkout HEAD~2 myFile

Your product class needs a parameterless constructor. You can make it private, but Jackson needs the constructor.

As a side note: You should use Pascal casing for your class names. That is Product, and not product.

Bold text:

<Text>
  <Text>This is a sentence</Text>
  <Text style={{fontWeight: "bold"}}> with</Text>
  <Text> one word in bold</Text>
</Text>

Italic text:

<Text>
  <Text>This is a sentence</Text>
  <Text style={{fontStyle: "italic"}}> with</Text>
  <Text> one word in italic</Text>
</Text>

You could also use inline blocks to avoid floating elements

<ul>
    <li>
        <a href="#">some item</a>
    </li>
    <li>
        <a href="#">another item</a>
   </li>
</ul>

and then style as:

li{
    /* with fix for IE */
    display:inline;
    display:inline-block;
    zoom:1;
    /*
    additional styles to make it look nice
    */
 }

that way you wont need to float anything, eliminating the need for clearfixes

You need a spring-security-config.jar on your classpath.

The exception means that the security: xml namescape cannot be handled by spring "parsers". They are implementations of the NamespaceHandler interface, so you need a handler that knows how to process <security: tags. That's the SecurityNamespaceHandler located in spring-security-config

The workaround for this is:

In your render function do something like this:

constructor() {
    this.state = { isLoading: true }
}

componentDidMount() {
    this.setState({isLoading: false})
}

render() {
    return(
        this.state.isLoading ? *showLoadingScreen* : *yourPage()*
    )
}

Initialize isLoading as true in the constructor and false on componentDidMount

In this example, taken from

http://www.webdeveloper.com/forum/showthread.php?t=75170

You can see the way to change the target on the button OnClick event.

function subm(f,newtarget)
{
document.myform.target = newtarget ;
f.submit();
}

<FORM name="myform" method="post" action="" target="" >

<INPUT type="button" name="Submit" value="Submit" onclick="subm(this.form,'_self');">
<INPUT type="button" name="Submit" value="Submit" onclick="subm(this.form,'_blank');">

You should either use

if str1[0] == '"' and str1[-1] == '"'

or

if str1.startswith('"') and str1.endswith('"')

but not slice and check startswith/endswith together, otherwise you'll slice off what you're looking for...

Sometimes "Nothing to be done for all" error can be caused by spaces before command in makefile rule instead of tab. Please ensure that you use tabs instead of spaces inside of your rules.

all:
<\t>$(CC) $(CFLAGS) ...

instead of

all:
    $(CC) $(CFLAGS) ...

Please see the GNU make manual for the rule syntax description: https://www.gnu.org/software/make/manual/make.html#Rule-Syntax

Since TS 2.0, we have the ability to define visibility modifiers on constructors, so now we can do singletons in TypeScript just like we are used to from other languages.

Example given:

class MyClass
{
    private static _instance: MyClass;

    private constructor()
    {
        //...
    }

    public static get Instance()
    {
        // Do you need arguments? Make it a regular static method instead.
        return this._instance || (this._instance = new this());
    }
}

const myClassInstance = MyClass.Instance;

Thank you @Drenai for pointing out that if you write code using the raw compiled javascript you will not have protection against multiple instantiation, as the constraints of TS disappears and the constructor won't be hidden.

To add to already great and easy solution provided by Przemek315, the same config if you use Kotlin DSL:

tasks.test {
    useJUnitPlatform()
}

Any nontrivial application is made up of two or more classes that collaborate with each other to perform some business logic. Traditionally, each object is responsible for obtaining its own references to the objects it collaborates with (its dependencies). When applying DI, the objects are given their dependencies at creation time by some external entity that coordinates each object in the system. In other words, dependencies are injected into objects.

For further details please see enter link description here

An iterative C++ stack solution for a flavor of this problem. Unlike some other iterative solutions, it doesn't make unnecessary copies of intermediate sequences.

// Given a positive integer, return all possible combinations of
// positive integers that sum up to it. 

vector<vector<int>> print_all_sum(int target){
    vector<vector<int>> output;
    vector<int> stack;

    int curr_min = 1;
    int sum = 0;
    while (curr_min < target) {
        sum += curr_min;
        if (sum >= target) {
            if (sum == target) {
                output.push_back(stack); // make a copy
                output.back().push_back(curr_min);
            }
            sum -= curr_min + stack.back();
            curr_min = stack.back() + 1;
            stack.pop_back();
        } else {
            stack.push_back(curr_min);
        }
    }

    return output;
}

According to pip documentation at

http://pip.readthedocs.org/en/stable/user_guide/#configuration

You will need to specify the default install location within a pip.ini file, which, also according to the website above is usually located as follows

On Unix and Mac OS X the configuration file is: $HOME/.pip/pip.conf

On Windows, the configuration file is: %HOME%\pip\pip.ini

The %HOME% is located in C:\Users\Bob on windows assuming your name is Bob

On linux the $HOME directory can be located by using cd ~

You may have to create the pip.ini file when you find your pip directory. Within your pip.ini or pip.config you will then need to put (assuming your on windows) something like

[global]
target=C:\Users\Bob\Desktop

Except that you would replace C:\Users\Bob\Desktop with whatever path you desire. If you are on Linux you would replace it with something like /usr/local/your/path

After saving the command would then be

pip install pandas

However, the program you install might assume it will be installed in a certain directory and might not work as a result of being installed elsewhere.

Or far simpler than dealing with Spannables manually, since you didn't say that you want the background highlighted, just the text:

String styledText = "This is <font color='red'>simple</font>.";
textView.setText(Html.fromHtml(styledText), TextView.BufferType.SPANNABLE);

I figured it out!

After reading this blog post I realized that the placement of this line:

<script src="{% static "build/react.js" %}"></script>

was wrong. That line needs to be the last line in the <body> section, right before the </body> tag. Moving the line down solves the problem.

My explanation for this is that react was looking for the id in between the <head> tags, instead of in the <body> tags. Because of this it couldn't find the content id, and thus it wasn't a real DOM element.

JsonP only works with type: GET,

More info (PHP) http://www.fbloggs.com/2010/07/09/how-to-access-cross-domain-data-with-ajax-using-jsonp-jquery-and-php/

.NET: http://www.west-wind.com/weblog/posts/2007/Jul/04/JSONP-for-crosssite-Callbacks

I am using JDBI with Postgres, and encountered the same problem, i.e. after a violation of some constraint from a statement of previous transaction, subsequent statements would fail (but after I wait for a while, say 20-30 seconds, the problem goes away).

After some research, I found the problem was I was doing transaction "manually" in my JDBI, i.e. I surrounded my statements with BEGIN;...COMMIT; and it turns out to be the culprit!

In JDBI v2, I can just add @Transaction annotation, and the statements within @SqlQuery or @SqlUpdate will be executed as a transaction, and the above mentioned problem doesn't happen any more!

Short answer: AngularJS ("jqlite") doesn't support this. Include jQuery on your page (before including Angular), and it should work. See https://groups.google.com/d/topic/angular/H4haaMePJU0/discussion

I know I'm uprising a very old topic, but after a couple of hours struggling with this very problem and not finding a solution anywhere else, I think this is a good place to put an answer.

We have some Build Servers WindowsXP based and found this very problem: svn command line client is not caching auth credentials.

We finally found out that we are using Cygwin's svn client! not a "native" Windows. So... this client stores all the auth credentials in /home/<user>/.subversion/auth

This /home directory in Cygwin, in our installation is in c:\cygwin\home. AND: the problem was that the Windows user that is running svn did never ever "logged in" in Cygwin, and so there was no /home/<user> directory.

A simple "bash -ls" from a Windows command terminal created the directory, and after the first access to our SVN server with interactive prompting for access credentials, alás, they got cached.

So if you are using Cygwin's svn client, be sure to have a "home" directory created for the local Windows user.

var blob = new Blob([arrayBuffer])

var reader = new FileReader();
reader.onload = function(event){
   var base64 =   event.target.result
};

reader.readAsDataURL(blob);

Judging from the messages you send via Socket.IO socket.emit('greet', { hello: 'Hey, Mr.Client!' });, it seems that you are using the hackathon-starter boilerplate. If so, the issue might be that express-status-monitor module is creating its own socket.io instance, as per: https://github.com/RafalWilinski/express-status-monitor#using-module-with-socketio-in-project

You can either:

1. Remove that module

2. Pass in your socket.io instance and port as websocket when you create the expressStatusMonitor instance like below:

   const server = require('http').Server(app);
   const io = require('socket.io')(server);
   ...
   app.use(expressStatusMonitor({ websocket: io, port: app.get('port') })); 
   

Try calling setWillNotDraw(false) from surfaceCreated:

public void surfaceCreated(SurfaceHolder holder) {
    try {
        setWillNotDraw(false); 
        mycam.setPreviewDisplay(holder);
        mycam.startPreview();
    } catch (Exception e) {
        e.printStackTrace();
        Log.d(TAG,"Surface not created");
    }
}

@Override
protected void onDraw(Canvas canvas) {

    canvas.drawRect(area, rectanglePaint);
    Log.w(this.getClass().getName(), "On Draw Called");
}

and calling invalidate from onTouchEvent:

public boolean onTouch(View v, MotionEvent event) {

    invalidate();
    return true;
}

Try this:

printf '\n%s\n' 'I want this on a new line!'

That allows you to separate the formatting from the actual text. You can use multiple placeholders and multiple arguments.

quantity=38; price=142.15; description='advanced widget'
$ printf '%8d%10.2f  %s\n' "$quantity" "$price" "$description"
      38    142.15  advanced widget

Clean build your project by going to Build > Clean build.

It helped me when I had the same problem.

You need to use parentheses: myList.insert([1, 2, 3]). When you leave out the parentheses, python thinks you are trying to access myList.insert at position 1, 2, 3, because that's what brackets are used for when they are right next to a variable.

According to Flexbugs:

In IE 10-11, min-height declarations on flex containers work to size the containers themselves, but their flex item children do not seem to know the size of their parents. They act as if no height has been set at all.

Here are a couple of workarounds:

1. Always fill the viewport + scrollable <aside> and <section>:

html {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  height: 100%;
  margin: 0;
}

header,
footer {
  background: #7092bf;
}

main {
  flex: 1;
  display: flex;
}

aside, section {
  overflow: auto;
}

aside {
  flex: 0 0 150px;
  background: #3e48cc;
}

section {
  flex: 1;
  background: #9ad9ea;
}

<header>
  <p>header</p>
</header>

<main>
  <aside>
    <p>aside</p>
  </aside>
  <section>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
  </section>
</main>

<footer>
  <p>footer</p>
</footer>

2. Fill the viewport initially + normal page scroll with more content:

html {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  height: 100%;
  margin: 0;
}

header,
footer {
  background: #7092bf;
}

main {
  flex: 1 0 auto;
  display: flex;
}

aside {
  flex: 0 0 150px;
  background: #3e48cc;
}

section {
  flex: 1;
  background: #9ad9ea;
}

<header>
  <p>header</p>
</header>

<main>
  <aside>
    <p>aside</p>
  </aside>
  <section>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
    <p>content</p>
  </section>
</main>

<footer>
  <p>footer</p>
</footer>

This does not strictly answer the original question but some people have mentioned that with session.autoflush = True you don't have to use session.flush()... And this is not always true.

If you want to use the id of a newly created object in the middle of a transaction, you must call session.flush().

# Given a model with at least this id
class AModel(Base):
   id = Column(Integer, primary_key=True)  # autoincrement by default on integer primary key

session.autoflush = True

a = AModel()
session.add(a)
a.id  # None
session.flush()
a.id  # autoincremented integer

This is because autoflush does NOT auto fill the id (although a query of the object will, which sometimes can cause confusion as in "why this works here but not there?" But snapshoe already covered this part).

One related aspect that seems pretty important to me and wasn't really mentioned:

Why would you not commit all the time? - The answer is atomicity.

A fancy word to say: an ensemble of operations have to all be executed successfully OR none of them will take effect.

For example, if you want to create/update/delete some object (A) and then create/update/delete another (B), but if (B) fails you want to revert (A). This means those 2 operations are atomic.

Therefore, if (B) needs a result of (A), you want to call flush after (A) and commit after (B).

Also, if session.autoflush is True, except for the case that I mentioned above or others in Jimbo's answer, you will not need to call flush manually.

Improving on the answer by musiphil, you can write a standard deviation function without the temporary vector diff, just using a single inner_product call with the C++11 lambda capabilities:

double stddev(std::vector<double> const & func)
{
    double mean = std::accumulate(func.begin(), func.end(), 0.0) / func.size();
    double sq_sum = std::inner_product(func.begin(), func.end(), func.begin(), 0.0,
        [](double const & x, double const & y) { return x + y; },
        [mean](double const & x, double const & y) { return (x - mean)*(y - mean); });
    return std::sqrt(sq_sum / func.size());
}

I suspect doing the subtraction multiple times is cheaper than using up additional intermediate storage, and I think it is more readable, but I haven't tested the performance yet.

To get the definition of the SQL codes, the easiest way is to use db2 cli!

at the unix or dos command prompt, just type

db2 "? SQL302"

this will give you the required explanation of the particular SQL code that you normally see in the java exception or your db2 sql output :)

hope this helped.

This is an example of how to check if webpage is loaded in Desktop or mobile app.

JS will execute on page load and you can do Desktop specific things on page load eg hide barcode scanner.

   <!DOCTYPE html>
    <html>
    <head>
     <script type="text/javascript">

            /*
            * Hide Scan button if Page is loaded in Desktop Browser
            */
            function hideScanButtonForDesktop() {

                if (!(/Android|webOS|iPhone|iPad|iPod|BlackBerry|BB|PlayBook|IEMobile|Windows Phone|Kindle|Silk|Opera Mini/i.test(navigator.userAgent))) {

                    // Hide scan button for Desktop
                    document.getElementById('btnLinkModelScan').style.display = "none";
                }         
            }

            //toggle scanButton for Desktop on page load
            window.onload = hideScanButtonForDesktop;
        </script>
    </head>

In Powershell, you'll need to import the active directory module, then use the get-adgroupmember, and then measure-object. For example, to get the number of users belonging to the group "domain users", do the following:

Import-Module activedirecotry
Get-ADGroupMember "domain users" | Measure-Object

When entering the group name after "Get-ADGroupMember", if the name is a single string with no spaces, then no quotes are necessary. If the group name has spaces in it, use the quotes around it.

The output will look something like:

Count    : 12345
Average  :
Sum      :
Maximum  :
Minimum  :
Property :

Note - importing the active directory module may be redundant if you're already using PowerShell for other AD admin tasks.

Visual Studio 2013 has a package server running, and it was spending up to 2 million K of memory.

I put it to low priority and affinity with only one CPU, and Visual Studio ran much more smoothly.

This line in development.rb ensures that caching is not happening.

config.action_controller.perform_caching             = false

You can clear the Rails cache with

Rails.cache.clear

That said - I am not convinced this is a caching issue. Are you making changes to the page and not seeing them reflected? You aren't perhaps looking at the live version of that page? I have done that once (blush).

Update:

You can call that command from in the console. Are you sure you are running the application in development?

The only alternative is that the page that you are trying to render isn't the page that is being rendered.

If you watch the server output you should be able to see the render command when the page is rendered similar to this:

Rendered shared_partials/_latest_featured_video (31.9ms)
Rendered shared_partials/_s_invite_friends (2.9ms)
Rendered layouts/_sidebar (2002.1ms)
Rendered layouts/_footer (2.8ms)
Rendered layouts/_busy_indicator (0.6ms)

Resize and save an image to fit under width and height like a canvas keeping image proportional

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.IO;

namespace Infra.Files
{
    public static class GenerateThumb
    {
        /// <summary>
        /// Resize and save an image to fit under width and height like a canvas keeping things proportional
        /// </summary>
        /// <param name="originalImagePath"></param>
        /// <param name="thumbImagePath"></param>
        /// <param name="newWidth"></param>
        /// <param name="newHeight"></param>
        public static void GenerateThumbImage(string originalImagePath, string thumbImagePath, int newWidth, int newHeight)
        {
            Bitmap srcBmp = new Bitmap(originalImagePath);
            float ratio = 1;
            float minSize = Math.Min(newHeight, newHeight);

            if (srcBmp.Width > srcBmp.Height)
            {
                ratio = minSize / (float)srcBmp.Width;
            }
            else
            {
                ratio = minSize / (float)srcBmp.Height;
            }

            SizeF newSize = new SizeF(srcBmp.Width * ratio, srcBmp.Height * ratio);
            Bitmap target = new Bitmap((int)newSize.Width, (int)newSize.Height);

            using (Graphics graphics = Graphics.FromImage(target))
            {
                graphics.CompositingQuality = CompositingQuality.HighSpeed;
                graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
                graphics.CompositingMode = CompositingMode.SourceCopy;
                graphics.DrawImage(srcBmp, 0, 0, newSize.Width, newSize.Height);

                using (MemoryStream memoryStream = new MemoryStream())
                {
                    target.Save(thumbImagePath);
                }
            }
        }
    }
}

cxf.xml

<cxf:bus>
    <cxf:ininterceptors>
        <ref bean="loggingInInterceptor" />
    </cxf:ininterceptors>
    <cxf:outinterceptors>
        <ref bean="logOutInterceptor" />
    </cxf:outinterceptors>
</cxf:bus>

org.apache.cxf.Logger

org.apache.cxf.common.logging.Log4jLogger

Please check screenshot here

If you want to take advantage of recent Python versions' async features, you can use aioftp (from the same family of libraries and developers as the more popular aiohttp library). Here is a code example taken from their client tutorial:

client = aioftp.Client()
await client.connect("ftp.server.com")
await client.login("user", "pass")
await client.download("tmp/test.py", "foo.py", write_into=True)

This should help you

HTML

<!-- pretty much i just need to click a link within the regions table and it changes to the neccesary div. -->

<table>
<tr class="thumb"></tr>
    <td><a href="#" class="showall">All Regions</a> (shows main map) (link)</td>   

<tr class="thumb"></tr>
<td>Northern Region (link)</td>
</tr>

<tr class="thumb"></tr>
<td>Southern Region (link)</td>
</tr>

<tr class="thumb"></tr>
<td>Eastern Region (link)</td>
</tr>
</table>
<br />

<div id="mainmapplace">
    <div id="mainmap">
        All Regions image
    </div>
</div>
<div id="region">
    <div class="replace">northern image</div>
    <div class="replace">southern image</div>
    <div class="replace">Eastern image</div>
</div>

JavaScript

var originalmap;
var flag = false;

$(function (){

    $(".replace").click(function(){
            flag = true;
            originalmap = $('#mainmap');
            $('#mainmap').replaceWith($(this));
        });

    $('.showall').click(
        function(){
            if(flag == true){
                $('#region').append($('#mainmapplace .replace'));                
                $('#mainmapplace').children().remove();
                $('#mainmapplace').append($(originalmap));
                //$('#mapplace').append();
            }
        }
    )

})

CSS

#mainmapplace{
    width: 100px;
    height: 100px;
    background: red;
}

#region div{
    width: 100px;
    height: 100px;
    background: blue;
    margin: 10px 0 0 0;
}

It depends on how you tested it, and possibly on differences in the TCP stack implementation of the personal computer and the server.

For example, if your sendall always completes immediately (or very quickly) on the personal computer, the connection may simply never have broken during sending. This is very likely if your browser is running on the same machine (since there is no real network latency).

In general, you just need to handle the case where a client disconnects before you're finished, by handling the exception.

Remember that TCP communications are asynchronous, but this is much more obvious on physically remote connections than on local ones, so conditions like this can be hard to reproduce on a local workstation. Specifically, loopback connections on a single machine are often almost synchronous.

EDIT:

Ok I found why the int.ToString() in LINQtoEF fails, please read this post: Problem with converting int to string in Linq to entities

This works on my side :

        List<string> materialTypes = (from u in result.Users
                                      select u.LastName)
                       .Union(from u in result.Users
                               select SqlFunctions.StringConvert((double) u.UserId)).ToList();

On yours it should be like this:

    IList<String> materialTypes = ((from tom in context.MaterialTypes
                                       where tom.IsActive == true
                                       select tom.Name)
                                       .Union(from tom in context.MaterialTypes
                                       where tom.IsActive == true
                                       select SqlFunctions.StringConvert((double)tom.ID))).ToList();

Thanks, i've learnt something today :)

Check out php.ini the value set for session.gc_maxlifetime is the ID lifetime in seconds.

I believe the default is 1440 seconds (24 mins)

http://www.php.net/manual/en/session.configuration.php

Edit: As some comments point out, the above is not entirely accurate. A wonderful explanation of why, and how to implement session lifetimes is available here:

How do I expire a PHP session after 30 minutes?

Look at how the built-in containers do it. dict and list and so on contain heterogeneous elements of whatever types you like. If you define, say, an insert(val) function for your tree, it will at some point do something like node.value = val and Python will take care of the rest.

From your example it seems reasonable to assume that the siteIP column is determined by the siteName column (that is, each site has only one siteIP). If this is indeed the case, then there is a simple solution using group by:

select
  sites.siteName,
  sites.siteIP,
  max(history.date)
from sites
inner join history on
  sites.siteName=history.siteName
group by
  sites.siteName,
  sites.siteIP
order by
  sites.siteName;

However, if my assumption is not correct (that is, it is possible for a site to have multiple siteIP), then it is not clear from you question which siteIP you want the query to return in the second column. If just any siteIP, then the following query will do:

select
  sites.siteName,
  min(sites.siteIP),
  max(history.date)
from sites
inner join history on
  sites.siteName=history.siteName
group by
  sites.siteName
order by
  sites.siteName;

Documentation on d.android.com: http://developer.android.com/distribute/googleplay/promote/linking.html

@Tom Halladay's answer is correct with the mention that you shopuld also check for null values and send DbNullable if params are null as you would get an exception like

The parameterized query '...' expects the parameter '@parameterName', which was not supplied.

Something like this helped me

public static object GetDBNullOrValue<T>(this T val)
{
    bool isDbNull = true;
    Type t = typeof(T);

    if (Nullable.GetUnderlyingType(t) != null)
        isDbNull = EqualityComparer<T>.Default.Equals(default(T), val);
    else if (t.IsValueType)
        isDbNull = false;
    else
        isDbNull = val == null;

    return isDbNull ? DBNull.Value : (object) val;
}

(credit for the method goes to https://stackoverflow.com/users/284240/tim-schmelter)

Then use it like:

new SqlParameter("@parameterName", parameter.GetValueOrDbNull())

or another solution, more simple, but not generic would be:

new SqlParameter("@parameterName", parameter??(object)DBNull.Value)

Get and Post methods have nothing to do with the server technology you are using, it works the same in php, asp.net or ruby. GET and POST are part of HTTP protocol. As mark noted, POST is more secure. POST forms are also not cached by the browser. POST is also used to transfer large quantities of data.

This is the correct way of doing it http://blogs.msdn.com/b/managingsql/archive/2011/07/13/deleting-old-server-names-from-quot-connect-to-server-quot-dialog-in-ssms.aspx

You can't have an hash map with multiple keys, but you can have an object that takes multiple parameters as the key.

Create an object called Index that takes an x and y value.

public class Index {

    private int x;
    private int y;

    public Index(int x, int y) {
        this.x = x;
        this.y = y;
    }

    @Override
    public int hashCode() {
        return this.x ^ this.y;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Index other = (Index) obj;
        if (x != other.x)
            return false;
        if (y != other.y)
            return false;
        return true;
    }
}

Then have your HashMap<Index, Value> to get your result. :)

cygwin is another option. It has a port of svn.

There is more help available by reading the FindBoost.cmake file itself. It is located in your 'Modules' directory.

A good start is to set(Boost_DEBUG 1) - this will spit out a good deal of information about where boost is looking, what it's looking for, and may help explain why it can't find it.

It can also help you to figure out if it is picking up on your BOOST_ROOT properly.

FindBoost.cmake also sometimes has problems if the exact version of boost is not listed in the Available Versions variables. You can find more about this by reading FindBoost.cmake.

Lastly, FindBoost.cmake has had some bugs in the past. One thing you might try is to take a newer version of FindBoost.cmake out of the latest version of CMake, and stick it into your project folder alongside CMakeLists.txt - then even if you have an old version of boost, it will use the new version of FindBoost.cmake that is in your project's folder.

Good luck.

Check this blog by Martin Thoma. I tested the below code on MacOS Mojave and it worked as specified.

> def get_browser():
>     """Get the browser (a "driver")."""
>     # find the path with 'which chromedriver'
>     path_to_chromedriver = ('/home/moose/GitHub/algorithms/scraping/'
>                             'venv/bin/chromedriver')
>     download_dir = "/home/moose/selenium-download/"
>     print("Is directory: {}".format(os.path.isdir(download_dir)))
> 
>     from selenium.webdriver.chrome.options import Options
>     chrome_options = Options()
>     chrome_options.add_experimental_option('prefs', {
>         "plugins.plugins_list": [{"enabled": False,
>                                   "name": "Chrome PDF Viewer"}],
>         "download": {
>             "prompt_for_download": False,
>             "default_directory": download_dir
>         }
>     })
> 
>     browser = webdriver.Chrome(path_to_chromedriver,
>                                chrome_options=chrome_options)
>     return browser

It's very easy.

"your chrome path" -kiosk -fullscreen "your URL"

Example:

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" -kiosk -fullscreen http://google.com

Close all Chrome sessions first !

To exit: Press ALT-TAB > hold ALT and press X in the windows task. (win10)

    public List<TEntity> Clone<TEntity>(List<TEntity> o1List) where TEntity : class , new()
    {
        List<TEntity> retList = new List<TEntity>();
        try
        {
            Type sourceType = typeof(TEntity);
            foreach(var o1 in o1List)
            {
                TEntity o2 = new TEntity();
                foreach (PropertyInfo propInfo in (sourceType.GetProperties()))
                {
                    var val = propInfo.GetValue(o1, null);
                    propInfo.SetValue(o2, val);
                }
                retList.Add(o2);
            }
            return retList;
        }
        catch
        {
            return retList;
        }
    }

I'm using GIMP 2.8.1. I hope this will work for you:

Open the "Windows" menu and select "Single-Window Mode".

Simple ;)

In Access, click Create > Module and paste in the following code

Public Function ConvertMyStringToDateTime(strIn As String) As Date
ConvertMyStringToDateTime = CDate( _
        Mid(strIn, 1, 4) & "-" & Mid(strIn, 5, 2) & "-" & Mid(strIn, 7, 2) & " " & _
        Mid(strIn, 9, 2) & ":" & Mid(strIn, 11, 2) & ":" & Mid(strIn, 13, 2))
End Function

Hit Ctrl+S and save the module as modDateConversion.

Now try using a query like

Select * from Events
Where Events.[Date] > ConvertMyStringToDateTime("20130423014854")

--- Edit ---

Alternative solution avoiding user-defined VBA function:

SELECT * FROM Events
WHERE Format(Events.[Date],'yyyyMMddHhNnSs') > '20130423014854'

For Can not connect to the SQL Server. The original error is: Login failed for user 'username'. error, port requirements on MSSQL server side need to be fulfilled.

There are other ports beyond default port 1433 needed to be configured on Windows Firewall.

https://stackoverflow.com/a/25147251/1608670

You can use [Adjacent sibling combinators] as described in the W3 CSS Selectors Recommendation1 So you can use a + sign (or even a ~ tilde) apply a padding to the nested ul tag, as you described in your question and you'll get the result you need. I also think what you want it to override the main css, locally. You can do this:

<style>
    li+ul {padding-left: 20px;}
</style>

This way the inner ul will be nested including the bullets of the li elements. I wish this was helpful! =)

<?php echo $this->getLayout()->createBlock('cms/block')->setBlockId('my_static_block_name')->toHtml() ?>

and use this link for more http://www.justwebdevelopment.com/blog/how-to-call-static-block-in-magento/

Lombok Issue #78 references this page https://www.donneo.de/2015/09/16/lomboks-builder-annotation-and-inheritance/ with this lovely explanation:

@AllArgsConstructor 
public class Parent {   
     private String a; 
}

public class Child extends Parent {
  private String b;

  @Builder
  public Child(String a, String b){
    super(a);
    this.b = b;   
  } 
} 

As a result you can then use the generated builder like this:

Child.builder().a("testA").b("testB").build(); 

The official documentation explains this, but it doesn’t explicitly point out that you can facilitate it in this way.

I also found this works nicely with Spring Data JPA.

If the numeric values are seq indexes, then we could have simpler ways... Here's my code submission, My Ruby is a bit rusty

   input = ["cat", 1, "dog", 2, "wombat", 3]
   hash = Hash.new
   input.each_with_index {|item, index|
     if (index%2 == 0) hash[item] = input[index+1]
   }
   hash   #=> {"cat"=>1, "wombat"=>3, "dog"=>2}

In your example, performance probalby isn't too different but there are other issues to consider: namely memory fragmentation. Even concatenate operation is creating a new string, even if its temporary (it takes time to GC it and it's more work). String.format() is just more readable and it involves less fragmentation.

Also, if you're using a particular format a lot, don't forget you can use the Formatter() class directly (all String.format() does is instantiate a one use Formatter instance).

Also, something else you should be aware of: be careful of using substring(). For example:

String getSmallString() {
  String largeString = // load from file; say 2M in size
  return largeString.substring(100, 300);
}

That large string is still in memory because that's just how Java substrings work. A better version is:

  return new String(largeString.substring(100, 300));

or

  return String.format("%s", largeString.substring(100, 300));

The second form is probably more useful if you're doing other stuff at the same time.

Put the div in another div and set the parent div's style to position:relative; Then on the child div set the following CSS properties: position:absolute; bottom:0;

Yes, you should think of defining both your functions in a Class, and making word a member. This is cleaner :

class Spam:
    def oneFunction(self,lists):
        category=random.choice(list(lists.keys()))
        self.word=random.choice(lists[category])

    def anotherFunction(self):
        for letter in self.word:              
            print("_", end=" ")

Once you make a Class you have to Instantiate it to an Object and access the member functions

s = Spam()
s.oneFunction(lists)
s.anotherFunction()

Another approach would be to make oneFunction return the word so that you can use oneFunction instead of word in anotherFunction

>>> def oneFunction(lists):
        category=random.choice(list(lists.keys()))
        return random.choice(lists[category])

    
>>> def anotherFunction():
        for letter in oneFunction(lists):              
            print("_", end=" ")

And finally, you can also make anotherFunction, accept word as a parameter which you can pass from the result of calling oneFunction

>>> def anotherFunction(words):
        for letter in words:              
            print("_",end=" ")
>>> anotherFunction(oneFunction(lists))

W3C Spec on setrequestheader.

The brief points:

If the request header had already been set, then the new value MUST be concatenated to the existing value using a U+002C COMMA followed by a U+0020 SPACE for separation.

UAs MAY give the User-Agent header an initial value, but MUST allow authors to append values to it.

However - After searching through the framework XHR in jQuery they don't allow you to change the User-Agent or Referer headers. The closest thing:

// Set header so the called script knows that it's an XMLHttpRequest
xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");

I'm leaning towards the opinion that what you want to do is being denied by a security policy in FF - if you want to pass some custom Referer type header you could always do:

xhr.setRequestHeader('X-Alt-Referer', 'http://www.google.com');

I just posted a simple solution that takes 5 seconds here on a related post here - Facebook debugger: Clear whole site cache

short answer... change your permalinks on a worpdress site in the permalinks settings to a custom one. I just added an underscore.
/_%postname%/
then facebook scrapes them all as new urls, new posts.

If you want the file to be opened with the default application, I mean without specifying Acrobat or Reader, you can't open the file in the specified page.

On the other hand, if you are Ok with specifying Acrobat or Reader, keep reading:

You can do it without telling the full Acrobat path, like this:

Process myProcess = new Process();    
myProcess.StartInfo.FileName = "acroRd32.exe"; //not the full application path
myProcess.StartInfo.Arguments = "/A \"page=2=OpenActions\" C:\\example.pdf";
myProcess.Start();

If you don't want the pdf to open with Reader but with Acrobat, chage the second line like this:

myProcess.StartInfo.FileName = "Acrobat.exe";

You can query the registry to identify the default application to open pdf files and then define FileName on your process's StartInfo accordingly.

Follow this question for details on doing that: Finding the default application for opening a particular file type on Windows

This work for me

<input type="file" onchange="function();this.value=null;return false;">

For WHM and cPanel, some versions need to explicty set mysqli to build.

Using WHM, under CENTOS 6.9 xen pv [dc] v68.0.27, one needed to rebuild Apache/PHP by looking at all options and select mysqli to build. The default was to build the deprecated mysql. Now the depreciation messages are gone and one is ready for future MySQL upgrades.

Figured this out with the help of a friend. The -m PuTTY option will end your session immediately after it executes the shell file. What I've done instead is I've created a batch script called putty.bat with these contents on my Windows machine:

@echo off
putty -load "host" -l username -pw password

This logs me in remotely to the Linux host. On the host side, I created a shell file called sql with these contents:

#!/bin/tcsh

add oracle10g
sqlplus username password

My host's Linux build used tcsh. Other Linux builds might use bash, so simply replace tcsh with bash and you should be fine.

To summarize, automating these steps are now done in two easy steps:

1. Double-click putty.bat. This opens PuTTY and logs me into the host.
2. Run command tcsh sql. This adds the oracle tool to my host, and logs me into the sql database.

You don't have to test the dataset.

The Fill() method returns the # of rows added.

See DbDataAdapter.Fill Method (DataSet)

One difference is for r+ if the files does not exist, it'll not be created and open fails. But in case of a+ the file will be created if it does not exist.

You can do it easily using "vscode-nuget-package-manager". Go to the marketplace and install this. After That

1) Press Ctrl+P or Ctrl+Shift+P (and skip 2)

2) Type ">"

3) Then select "Nuget Package Manager:Add Package"

4) Enter package name Ex: Dapper

5) select package name and version

6) Done.

Try the following code. It may work fine.

$username = $_POST['username'];
$password = $_POST['password'];
$result = mysql_query("SELECT * FROM Users WHERE UserName ='$username'");

while($row = mysql_fetch_array($result))
{
    echo $row['FirstName'];
}

Get set are access modifiers to property. Get reads the property field. Set sets the property value. Get is like Read-only access. Set is like Write-only access. To use the property as read write both get and set must be used.

I finally discover the error. The problem is that the primary key constraint name is equal the table name. I don know how postgres represents constraints, but I think the error "Relation already exists" was being triggered during the creation of the primary key constraint because the table was already declared. But because of this error, the table wasnt created at the end.

You have to tell your compiler where is the include directory. Something like this:

gcc -I/usr/lib/jvm/jdk1.7.0_07/include

But it depends on your makefile.

Does this serves your purpose?

//header file

struct MyStruct {
public:
    const std::unordered_map<std::string, uint32_t> str_to_int{
        { "a", 1 },
        { "b", 2 },
        ...
        { "z", 26 }
    };
    const std::unordered_map<int , std::string> int_to_str{
        { 1, "a" },
        { 2, "b" },
        ...
        { 26, "z" }
    };
    std::string some_string = "justanotherstring";  
    uint32_t some_int = 42;

    static MyStruct & Singleton() {
        static MyStruct instance;
        return instance;
    }
private:
    MyStruct() {};
};

//Usage in cpp file
int main(){
    std::cout<<MyStruct::Singleton().some_string<<std::endl;
    std::cout<<MyStruct::Singleton().some_int<<std::endl;
    return 0;
}

See this picture. :)

import --> const --> var --> init()

1. If a package imports other packages, the imported packages are initialized first.

2. Current package's constant initialized then.

3. Current package's variables are initialized then.

4. Finally, init() function of current package is called.

A package can have multiple init functions (either in a single file or distributed across multiple files) and they are called in the order in which they are presented to the compiler.

A package will be initialised only once even if it is imported from multiple packages.

if column = None

COLUMN_OLD_VALUE
----------------
None
1
None
100
20
------------------

Use create a temptable on data frame:

sqlContext.sql("select * from tempTable where column_old_value='None' ").show()

So use : column_old_value='None'

You should use header guard.

put those line at the top of the header file

#ifndef PATH_FILENAME_H
#define PATH_FILENAME_H

and at the bottom

#endif

Use reindex to get all columns you need. It'll preserve the ones that are already there and put in empty columns otherwise.

p = p.reindex(columns=['1Sun', '2Mon', '3Tue', '4Wed', '5Thu', '6Fri', '7Sat'])

So, your entire code example should look like this:

df = pd.read_csv(CsvFileName)

p = df.pivot_table(index=['Hour'], columns='DOW', values='Changes', aggfunc=np.mean).round(0)
p.fillna(0, inplace=True)

columns = ["1Sun", "2Mon", "3Tue", "4Wed", "5Thu", "6Fri", "7Sat"]
p = p.reindex(columns=columns)
p[columns] = p[columns].astype(int)

1. find($id) takes an id and returns a single model. If no matching model exist, it returns null.

2. findOrFail($id) takes an id and returns a single model. If no matching model exist, it throws an error¹.

3. first() returns the first record found in the database. If no matching model exist, it returns null.

4. firstOrFail() returns the first record found in the database. If no matching model exist, it throws an error¹.

5. get() returns a collection of models matching the query.

6. pluck($column) returns a collection of just the values in the given column. In previous versions of Laravel this method was called lists.

7. toArray() converts the model/collection into a simple PHP array.

Note: a collection is a beefed up array. It functions similarly to an array, but has a lot of added functionality, as you can see in the docs.

Unfortunately, PHP doesn't let you use a collection object everywhere you can use an array. For example, using a collection in a foreach loop is ok, put passing it to array_map is not. Similarly, if you type-hint an argument as array, PHP won't let you pass it a collection. Starting in PHP 7.1, there is the iterable typehint, which can be used to accept both arrays and collections.

If you ever want to get a plain array from a collection, call its all() method.

¹ The error thrown by the findOrFail and firstOrFail methods is a ModelNotFoundException. If you don't catch this exception yourself, Laravel will respond with a 404, which is what you want most of the time.

try these..

$(document).click(function(evt) {
    var target = evt.target.className;
    var inside = $(".menuWraper");
    //alert($(target).html());
    if ($.trim(target) != '') {
        if ($("." + target) != inside) {
            alert("bleep");
        }
    }
});

For SQL Server (2005 or above) a quick and reliable method is:

SELECT SUM (row_count)
FROM sys.dm_db_partition_stats
WHERE object_id=OBJECT_ID('MyTableName')   
AND (index_id=0 or index_id=1);

Details about sys.dm_db_partition_stats are explained in MSDN

The query adds rows from all parts of a (possibly) partitioned table.

index_id=0 is an unordered table (Heap) and index_id=1 is an ordered table (clustered index)

Even faster (but unreliable) methods are detailed here.

For further readers/searchers:

As Rene Pot points out on this topic,

By adding the attribute readonly (or readonly="readonly") to the input field you should prevent anyone typing anything in it, but still be able to launch a click event on it.

With this method, you can avoid popping up the "soft" Keyboard and still launch click events / fill the input by any on-screen keyboard.

This solution also works fine with date-time-pickers which generally already implement controls.

String deviceName = android.os.Build.MODEL; // returns model name 

String deviceManufacturer = android.os.Build.MANUFACTURER; // returns manufacturer

Use Following method to get model & manufacturer programmatically

  public String getDeviceName() {
        String manufacturer = Build.MANUFACTURER;
        String model = Build.MODEL;
        if (model.toLowerCase().startsWith(manufacturer.toLowerCase())) {
            return capitalize(model);
        } else {
            return capitalize(manufacturer) + " " + model;
        }
    }


    private String capitalize(String s) {
    if (s == null || s.length() == 0) {
        return "";
    }
    char first = s.charAt(0);
    if (Character.isUpperCase(first)) {
        return s;
    } else {
        return Character.toUpperCase(first) + s.substring(1);
    }

The answer of @NeplatnyUdaj is right but consider that Excel want the function name in the set language, in my case German. Then you need to use "DATUM" instead of "DATE":

=(((COLUMN_ID_HERE/60)/60)/24)+DATUM(1970,1,1)

Use an abstract class instead. So, you would have something like:

public bool Foo<T>() where T : CBase;

Once you have your image, you can use

$ docker tag <image> <newName>/<repoName>:<tagName>

1. Build and tag the image with creack/node:latest

   $ ID=$(docker build -q -t creack/node .)
   

2. Add a new tag

   $ docker tag $ID creack/node:0.10.24
   

3. You can use this and skip the -t part from build

   $ docker tag $ID creack/node:latest