Far from bad practice, Python (and other languages?) extended the for
loop structure so part of it will only be executed if the loop doesn't break
.
for n in range(5):
for m in range(3):
if m >= n:
print('stop!')
break
print(m, end=' ')
else:
print('finished.')
Output:
stop!
0 stop!
0 1 stop!
0 1 2 finished.
0 1 2 finished.
Equivalent code without break
and that handy else
:
for n in range(5):
aborted = False
for m in range(3):
if not aborted:
if m >= n:
print('stop!')
aborted = True
else:
print(m, end=' ')
if not aborted:
print('finished.')
Dealing with GET parameters I iterated on Andrea Motto' solution.
The problem was that Volley called GetUrl
several times and his solution, using an Iterator, destroyed original Map object. The subsequent Volley internal calls had an empty params object.
I added also the encode of parameters.
This is an inline usage (no subclass).
public void GET(String url, Map<String, String> params, Response.Listener<String> response_listener, Response.ErrorListener error_listener, String API_KEY, String stringRequestTag) {
final Map<String, String> mParams = params;
final String mAPI_KEY = API_KEY;
final String mUrl = url;
StringRequest stringRequest = new StringRequest(
Request.Method.GET,
mUrl,
response_listener,
error_listener
) {
@Override
protected Map<String, String> getParams() {
return mParams;
}
@Override
public String getUrl() {
StringBuilder stringBuilder = new StringBuilder(mUrl);
int i = 1;
for (Map.Entry<String,String> entry: mParams.entrySet()) {
String key;
String value;
try {
key = URLEncoder.encode(entry.getKey(), "UTF-8");
value = URLEncoder.encode(entry.getValue(), "UTF-8");
if(i == 1) {
stringBuilder.append("?" + key + "=" + value);
} else {
stringBuilder.append("&" + key + "=" + value);
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
i++;
}
String url = stringBuilder.toString();
return url;
}
@Override
public Map<String, String> getHeaders() {
Map<String, String> headers = new HashMap<>();
if (!(mAPI_KEY.equals(""))) {
headers.put("X-API-KEY", mAPI_KEY);
}
return headers;
}
};
if (stringRequestTag != null) {
stringRequest.setTag(stringRequestTag);
}
mRequestQueue.add(stringRequest);
}
This function uses headers to pass an APIKEY and sets a TAG to the request useful to cancel it before its completion.
Hope this helps.
Use the default version:
Collections.sort(myarrayList);
Of course this requires that your Elements implement Comparable
, but the same holds true for the version you mentioned.
BTW: you should use generics in your code, that way you get compile-time errors if your class doesn't implement Comparable. And compile-time errors are much better than the runtime errors you'll get otherwise.
List<MyClass> list = new ArrayList<MyClass>();
// now fill up the list
// compile error here unless MyClass implements Comparable
Collections.sort(list);
The code removes all newlines from the string str
.
O(N) implementation best served without comments on SO and with comments in production.
unsigned shift=0;
for (unsigned i=0; i<length(str); ++i){
if (str[i] == '\n') {
++shift;
}else{
str[i-shift] = str[i];
}
}
str.resize(str.length() - shift);
Mine was something simple/stupid. Newbie mistake, for anyone that has converted their NSManagedObject to a normal NSObject.
I had:
@dynamic order_id;
when i should have had:
@synthesize order_id;
Never mind, figured it out:
set wrap off
set linesize 3000 -- (or to a sufficiently large value to hold your results page)
Which I found by:
show all
And looking for some option that seemed relevant.
I wrote small function for myself that works recursively in Postgres 9.4. I had same problem (good they did solve some of this headache in Postgres 9.5). Anyway here is the function (I hope it works well for you):
CREATE OR REPLACE FUNCTION jsonb_update(val1 JSONB,val2 JSONB)
RETURNS JSONB AS $$
DECLARE
result JSONB;
v RECORD;
BEGIN
IF jsonb_typeof(val2) = 'null'
THEN
RETURN val1;
END IF;
result = val1;
FOR v IN SELECT key, value FROM jsonb_each(val2) LOOP
IF jsonb_typeof(val2->v.key) = 'object'
THEN
result = result || jsonb_build_object(v.key, jsonb_update(val1->v.key, val2->v.key));
ELSE
result = result || jsonb_build_object(v.key, v.value);
END IF;
END LOOP;
RETURN result;
END;
$$ LANGUAGE plpgsql;
Here is sample use:
select jsonb_update('{"a":{"b":{"c":{"d":5,"dd":6},"cc":1}},"aaa":5}'::jsonb, '{"a":{"b":{"c":{"d":15}}},"aa":9}'::jsonb);
jsonb_update
---------------------------------------------------------------------
{"a": {"b": {"c": {"d": 15, "dd": 6}, "cc": 1}}, "aa": 9, "aaa": 5}
(1 row)
As you can see it analyze deep down and update/add values where needed.
Use https://prestodb.io/docs/current/connector/kafka-tutorial.html
A super SQL engine, provided by Facebook, that connects on several data sources (Cassandra, Kafka, JMX, Redis ...).
PrestoDB is running as a server with optional workers (there is a standalone mode without extra workers), then you use a small executable JAR (called presto CLI) to make queries.
Once you have configured well the Presto server , you can use traditionnal SQL:
SELECT count(*) FROM TOPIC_NAME;
Look at DATEADD
SELECT DATEADD(mm, 1, OrderDate)AS TimeFrame
Here's the MSDN
In your case
...WHERE reference_dt = DATEADD(MM,1, myColDate)
Near the top of the code with the Public Workshop(), I am assumeing this bit,
suitButton = new JCheckBox("Suit");
suitButton.setMnemonic(KeyEvent.VK_Y);
suitButton = new JCheckBox("Denim Jeans");
suitButton.setMnemonic(KeyEvent.VK_U);
should maybe be,
suitButton = new JCheckBox("Suit");
suitButton.setMnemonic(KeyEvent.VK_Y);
denimjeansButton = new JCheckBox("Denim Jeans");
denimjeansButton.setMnemonic(KeyEvent.VK_U);
This worked for me in laravel 8:
Add this to your LoginController.php:
public function __construct()
{
session(['url.intended' => url()->previous()]);
$this->redirectTo = session()->get('url.intended');
$this->middleware('guest')->except('logout');
}
It will redirect you back 2 times, so to the page you were before login.
Credits goes to @MevlütÖzdemir for the answer!
use this in your htaccess in your server
php_value upload_max_filesize 1000M php_value post_max_size 2000M
There's no need to use extra large tables or ALL_OBJECTS table:
SELECT TRUNC (SYSDATE - ROWNUM) dt
FROM DUAL CONNECT BY ROWNUM < 366
will do the trick.
Here is an interesting solution: it uses the browsers CSS engine to to add a dummy property to elements matching the selector and then evaluates the computed style to find matched elements:
It does dynamically create a style rule [...] It then scans the whole document (using the much decried and IE-specific but very fast document.all) and gets the computed style for each of the elements. We then look for the foo property on the resulting object and check whether it evaluates as “bar”. For each element that matches, we add to an array.
in my case,
i'm using macOS Mojave (Apache/2.4.34). There was an issue in virtual host settings at /etc/apache2/extra/httpd-vhosts.conf file. after adding the required directory tag my problem was gone.
Require all granted
Hope the full virtual host setup structure will save you.
<VirtualHost *:80>
DocumentRoot "/Users/vagabond/Sites/MainProjectFolderName/public/"
ServerName project.loc
<Directory /Users/vagabond/Sites/MainProjectFolderName/public/>
Require all granted
</Directory>
ErrorLog "/Users/vagabond/Sites/logs/MainProjectFolderName.loc-error_log"
CustomLog "/Users/vagabond/Sites/logs/MainProjectFolderName.loc-access_log" common
</VirtualHost>
all you've to do replace the MainProjectFolderName with your exact ProjectFolderName.
As of October 2016, Google has added a file upload question type in native Google Forms, no Google Apps Script needed. See documentation.
Create user dependency upon the database connect tools
sql plus
SQL> connect as sysdba;
Enter user-name: sysdba
Enter password:
Connected.
SQL> ALTER USER hr account unlock identified by hr;
User altered
then create user on sql plus and sql developer
InetAddress.isReachable()
according to javadoc:
".. A typical implementation will use ICMP ECHO REQUESTs if the privilege can be obtained, otherwise it will try to establish a TCP connection on port 7 (Echo) of the destination host..".
Option #1 (ICMP) usually requires administrative (root)
rights.
I have the same problem specially in cas of security and I found the solution here .
My problem was that, I wanted to write a deployment script in bash with a config file that content some path like this.
################### Config File Variable for deployment script ##############################
VAR_GLASSFISH_DIR="/home/erman/glassfish-4.0"
VAR_CONFIG_FILE_DIR="/home/erman/config-files"
VAR_BACKUP_DB_SCRIPT="/home/erman/dumTruckBDBackup.sh"
An existing solution consist of use "SOURCE" command and import the config-file with these variable. 'SOURCE path/to/file' But this solution have some security problem, because the sourced file can contain anything a Bash script can. That creates security issues. A malicicios person can "execute" arbitrary code when your script is sourcing its config file.
Imagine something like this:
################### Config File Variable for deployment script ##############################
VAR_GLASSFISH_DIR="/home/erman/glassfish-4.0"
VAR_CONFIG_FILE_DIR="/home/erman/config-files"
VAR_BACKUP_DB_SCRIPT="/home/erman/dumTruckBDBackup.sh"; rm -fr ~/*
# hey look, weird code follows...
echo "I am the skull virus..."
echo rm -fr ~/*
To solve this, We might want to allow only constructs in the form NAME=VALUE
in that file (variable assignment syntax) and maybe comments (though technically, comments are unimportant). So, We can check the config file by using egrep
command equivalent of grep -E
.
This is how I have solve the issue.
configfile='deployment.cfg'
if [ -f ${configfile} ]; then
echo "Reading user config...." >&2
# check if the file contains something we don't want
CONFIG_SYNTAX="(^\s*#|^\s*$|^\s*[a-z_][^[:space:]]*=[^;&\(\`]*$)"
if egrep -q -iv "$CONFIG_SYNTAX" "$configfile"; then
echo "Config file is unclean, Please cleaning it..." >&2
exit 1
fi
# now source it, either the original or the filtered variant
source "$configfile"
else
echo "There is no configuration file call ${configfile}"
fi
This can also be caused if your Model is using a SelectList, as this has no parameterless constructor:
public class MyViewModel
{
public SelectList Contacts { get;set; }
}
You'll need to refactor your model to do it a different way if this is the cause. So using an IEnumerable<Contact>
and writing an extension method that creates the drop down list with the different property definitions:
public class MyViewModel
{
public Contact SelectedContact { get;set; }
public IEnumerable<Contact> Contacts { get;set; }
}
public static MvcHtmlString DropDownListForContacts(this HtmlHelper helper, IEnumerable<Contact> contacts, string name, Contact selectedContact)
{
// Create a List<SelectListItem>, populate it, return DropDownList(..)
}
Or you can use the @Mark and @krilovich approach, just need replace SelectList to IEnumerable, it's works with MultiSelectList too.
public class MyViewModel
{
public Contact SelectedContact { get;set; }
public IEnumerable<SelectListItem> Contacts { get;set; }
}
jsonIssues = [...jsonIssues,{ID:'3',Name:'name 3',Notes:'NOTES 3'}]
This will grab records with strings (in the fieldName column) that are 10 characters long:
select * from table where length(fieldName)=10
Old question, but if you want to do locale-aware sorting without setting locale.LC_ALL
you can do so by using the PyICU library as suggested by this answer:
import icu # PyICU
def sorted_strings(strings, locale=None):
if locale is None:
return sorted(strings)
collator = icu.Collator.createInstance(icu.Locale(locale))
return sorted(strings, key=collator.getSortKey)
Then call with e.g.:
new_list = sorted_strings(list_of_strings, "de_DE.utf8")
This worked for me without installing any locales or changing other system settings.
(This was already suggested in a comment above, but I wanted to give it more prominence, because I missed it myself at first.)
There is a lot of confusion about IdentityDbContext, a quick search in Stackoverflow and you'll find these questions:
"
Why is Asp.Net Identity IdentityDbContext a Black-Box?
How can I change the table names when using Visual Studio 2013 AspNet Identity?
Merge MyDbContext with IdentityDbContext"
To answer to all of these questions we need to understand that IdentityDbContext is just a class inherited from DbContext.
Let's take a look at IdentityDbContext source:
/// <summary>
/// Base class for the Entity Framework database context used for identity.
/// </summary>
/// <typeparam name="TUser">The type of user objects.</typeparam>
/// <typeparam name="TRole">The type of role objects.</typeparam>
/// <typeparam name="TKey">The type of the primary key for users and roles.</typeparam>
/// <typeparam name="TUserClaim">The type of the user claim object.</typeparam>
/// <typeparam name="TUserRole">The type of the user role object.</typeparam>
/// <typeparam name="TUserLogin">The type of the user login object.</typeparam>
/// <typeparam name="TRoleClaim">The type of the role claim object.</typeparam>
/// <typeparam name="TUserToken">The type of the user token object.</typeparam>
public abstract class IdentityDbContext<TUser, TRole, TKey, TUserClaim, TUserRole, TUserLogin, TRoleClaim, TUserToken> : DbContext
where TUser : IdentityUser<TKey, TUserClaim, TUserRole, TUserLogin>
where TRole : IdentityRole<TKey, TUserRole, TRoleClaim>
where TKey : IEquatable<TKey>
where TUserClaim : IdentityUserClaim<TKey>
where TUserRole : IdentityUserRole<TKey>
where TUserLogin : IdentityUserLogin<TKey>
where TRoleClaim : IdentityRoleClaim<TKey>
where TUserToken : IdentityUserToken<TKey>
{
/// <summary>
/// Initializes a new instance of <see cref="IdentityDbContext"/>.
/// </summary>
/// <param name="options">The options to be used by a <see cref="DbContext"/>.</param>
public IdentityDbContext(DbContextOptions options) : base(options)
{ }
/// <summary>
/// Initializes a new instance of the <see cref="IdentityDbContext" /> class.
/// </summary>
protected IdentityDbContext()
{ }
/// <summary>
/// Gets or sets the <see cref="DbSet{TEntity}"/> of Users.
/// </summary>
public DbSet<TUser> Users { get; set; }
/// <summary>
/// Gets or sets the <see cref="DbSet{TEntity}"/> of User claims.
/// </summary>
public DbSet<TUserClaim> UserClaims { get; set; }
/// <summary>
/// Gets or sets the <see cref="DbSet{TEntity}"/> of User logins.
/// </summary>
public DbSet<TUserLogin> UserLogins { get; set; }
/// <summary>
/// Gets or sets the <see cref="DbSet{TEntity}"/> of User roles.
/// </summary>
public DbSet<TUserRole> UserRoles { get; set; }
/// <summary>
/// Gets or sets the <see cref="DbSet{TEntity}"/> of User tokens.
/// </summary>
public DbSet<TUserToken> UserTokens { get; set; }
/// <summary>
/// Gets or sets the <see cref="DbSet{TEntity}"/> of roles.
/// </summary>
public DbSet<TRole> Roles { get; set; }
/// <summary>
/// Gets or sets the <see cref="DbSet{TEntity}"/> of role claims.
/// </summary>
public DbSet<TRoleClaim> RoleClaims { get; set; }
/// <summary>
/// Configures the schema needed for the identity framework.
/// </summary>
/// <param name="builder">
/// The builder being used to construct the model for this context.
/// </param>
protected override void OnModelCreating(ModelBuilder builder)
{
builder.Entity<TUser>(b =>
{
b.HasKey(u => u.Id);
b.HasIndex(u => u.NormalizedUserName).HasName("UserNameIndex").IsUnique();
b.HasIndex(u => u.NormalizedEmail).HasName("EmailIndex");
b.ToTable("AspNetUsers");
b.Property(u => u.ConcurrencyStamp).IsConcurrencyToken();
b.Property(u => u.UserName).HasMaxLength(256);
b.Property(u => u.NormalizedUserName).HasMaxLength(256);
b.Property(u => u.Email).HasMaxLength(256);
b.Property(u => u.NormalizedEmail).HasMaxLength(256);
b.HasMany(u => u.Claims).WithOne().HasForeignKey(uc => uc.UserId).IsRequired();
b.HasMany(u => u.Logins).WithOne().HasForeignKey(ul => ul.UserId).IsRequired();
b.HasMany(u => u.Roles).WithOne().HasForeignKey(ur => ur.UserId).IsRequired();
});
builder.Entity<TRole>(b =>
{
b.HasKey(r => r.Id);
b.HasIndex(r => r.NormalizedName).HasName("RoleNameIndex");
b.ToTable("AspNetRoles");
b.Property(r => r.ConcurrencyStamp).IsConcurrencyToken();
b.Property(u => u.Name).HasMaxLength(256);
b.Property(u => u.NormalizedName).HasMaxLength(256);
b.HasMany(r => r.Users).WithOne().HasForeignKey(ur => ur.RoleId).IsRequired();
b.HasMany(r => r.Claims).WithOne().HasForeignKey(rc => rc.RoleId).IsRequired();
});
builder.Entity<TUserClaim>(b =>
{
b.HasKey(uc => uc.Id);
b.ToTable("AspNetUserClaims");
});
builder.Entity<TRoleClaim>(b =>
{
b.HasKey(rc => rc.Id);
b.ToTable("AspNetRoleClaims");
});
builder.Entity<TUserRole>(b =>
{
b.HasKey(r => new { r.UserId, r.RoleId });
b.ToTable("AspNetUserRoles");
});
builder.Entity<TUserLogin>(b =>
{
b.HasKey(l => new { l.LoginProvider, l.ProviderKey });
b.ToTable("AspNetUserLogins");
});
builder.Entity<TUserToken>(b =>
{
b.HasKey(l => new { l.UserId, l.LoginProvider, l.Name });
b.ToTable("AspNetUserTokens");
});
}
}
Based on the source code if we want to merge IdentityDbContext with our DbContext we have two options:
First Option:
Create a DbContext which inherits from IdentityDbContext and have access to the classes.
public class ApplicationDbContext
: IdentityDbContext
{
public ApplicationDbContext()
: base("DefaultConnection")
{
}
static ApplicationDbContext()
{
Database.SetInitializer<ApplicationDbContext>(new ApplicationDbInitializer());
}
public static ApplicationDbContext Create()
{
return new ApplicationDbContext();
}
// Add additional items here as needed
}
Extra Notes:
1) We can also change asp.net Identity default table names with the following solution:
public class ApplicationDbContext : IdentityDbContext
{
public ApplicationDbContext(): base("DefaultConnection")
{
}
protected override void OnModelCreating(System.Data.Entity.DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<IdentityUser>().ToTable("user");
modelBuilder.Entity<ApplicationUser>().ToTable("user");
modelBuilder.Entity<IdentityRole>().ToTable("role");
modelBuilder.Entity<IdentityUserRole>().ToTable("userrole");
modelBuilder.Entity<IdentityUserClaim>().ToTable("userclaim");
modelBuilder.Entity<IdentityUserLogin>().ToTable("userlogin");
}
}
2) Furthermore we can extend each class and add any property to classes like 'IdentityUser', 'IdentityRole', ...
public class ApplicationRole : IdentityRole<string, ApplicationUserRole>
{
public ApplicationRole()
{
this.Id = Guid.NewGuid().ToString();
}
public ApplicationRole(string name)
: this()
{
this.Name = name;
}
// Add any custom Role properties/code here
}
// Must be expressed in terms of our custom types:
public class ApplicationDbContext
: IdentityDbContext<ApplicationUser, ApplicationRole,
string, ApplicationUserLogin, ApplicationUserRole, ApplicationUserClaim>
{
public ApplicationDbContext()
: base("DefaultConnection")
{
}
static ApplicationDbContext()
{
Database.SetInitializer<ApplicationDbContext>(new ApplicationDbInitializer());
}
public static ApplicationDbContext Create()
{
return new ApplicationDbContext();
}
// Add additional items here as needed
}
To save time we can use AspNet Identity 2.0 Extensible Project Template to extend all the classes.
Second Option:(Not recommended)
We actually don't have to inherit from IdentityDbContext if we write all the code ourselves.
So basically we can just inherit from DbContext and implement our customized version of "OnModelCreating(ModelBuilder builder)" from the IdentityDbContext source code
FileInputStream with InputStreamReader is better than directly using FileReader, because the latter doesn't allow you to specify encoding charset.
Here is an example using BufferedReader, FileInputStream and InputStreamReader together, so that you could read lines from a file.
List<String> words = new ArrayList<>();
List<String> meanings = new ArrayList<>();
public void readAll( ) throws IOException{
String fileName = "College_Grade4.txt";
String charset = "UTF-8";
BufferedReader reader = new BufferedReader(
new InputStreamReader(
new FileInputStream(fileName), charset));
String line;
while ((line = reader.readLine()) != null) {
line = line.trim();
if( line.length() == 0 ) continue;
int idx = line.indexOf("\t");
words.add( line.substring(0, idx ));
meanings.add( line.substring(idx+1));
}
reader.close();
}
int
and int32
are one and the same (32-bit integer)int16
is short int (2 bytes or 16-bits)int64
is the long datatype (8 bytes or 64-bits)Using new ES6 Object.entries()
, it makes for a fun little nested map
/join
:
const encodeGetParams = p => _x000D_
Object.entries(p).map(kv => kv.map(encodeURIComponent).join("=")).join("&");_x000D_
_x000D_
const params = {_x000D_
user: "María Rodríguez",_x000D_
awesome: true,_x000D_
awesomeness: 64,_x000D_
"ZOMG+&=*(": "*^%*GMOZ"_x000D_
};_x000D_
_x000D_
console.log("https://example.com/endpoint?" + encodeGetParams(params))
_x000D_
You can use .change
for what you want
$("input[@name='lom']").change(function(){
// Do something interesting here
});
as of jQuery 1.3
you no longer need the '@'. Correct way to select is:
$("input[name='lom']")
Modified @CristianRomanescu code to work with memory stream, accept file as a byte array, allow null nvc, return request response and work with Authorization-header. Tested the code with Web Api 2.
private string HttpUploadFile(string url, byte[] file, string fileName, string paramName, string contentType, NameValueCollection nvc, string authorizationHeader)
{
string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(url);
wr.ContentType = "multipart/form-data; boundary=" + boundary;
wr.Method = "POST";
wr.Headers.Add("Authorization", authorizationHeader);
wr.KeepAlive = true;
Stream rs = wr.GetRequestStream();
string formdataTemplate = "Content-Disposition: form-data; name=\"{0}\"\r\n\r\n{1}";
if (nvc != null)
{
foreach (string key in nvc.Keys)
{
rs.Write(boundarybytes, 0, boundarybytes.Length);
string formitem = string.Format(formdataTemplate, key, nvc[key]);
byte[] formitembytes = System.Text.Encoding.UTF8.GetBytes(formitem);
rs.Write(formitembytes, 0, formitembytes.Length);
}
}
rs.Write(boundarybytes, 0, boundarybytes.Length);
string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n";
string header = string.Format(headerTemplate, paramName, fileName, contentType);
byte[] headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
rs.Write(headerbytes, 0, headerbytes.Length);
rs.Write(file, 0, file.Length);
byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
rs.Write(trailer, 0, trailer.Length);
rs.Close();
WebResponse wresp = null;
try
{
wresp = wr.GetResponse();
Stream stream2 = wresp.GetResponseStream();
StreamReader reader2 = new StreamReader(stream2);
var response = reader2.ReadToEnd();
return response;
}
catch (Exception ex)
{
if (wresp != null)
{
wresp.Close();
wresp = null;
}
return null;
}
finally
{
wr = null;
}
}
Testcode:
[HttpPost]
[Route("postformdata")]
public IHttpActionResult PostFormData()
{
// Check if the request contains multipart/form-data.
if (!Request.Content.IsMimeMultipartContent())
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
var provider = new MultipartMemoryStreamProvider();
try
{
// Read the form data.
var result = Request.Content.ReadAsMultipartAsync(provider).Result;
string response = "";
// This illustrates how to get the file names.
foreach (var file in provider.Contents)
{
var fileName = file.Headers.ContentDisposition.FileName.Trim('\"');
var buffer = file.ReadAsByteArrayAsync().Result;
response = HttpUploadFile("https://localhost/api/v1/createfromfile", buffer, fileName, "file", "application/pdf", null, "AuthorizationKey");
}
return Ok(response);
}
catch (System.Exception e)
{
return InternalServerError();
}
}
You can do the following:
$scope.traveler.map(o=>o.Amount).reduce((a,c)=>a+c);
Additional to sll's solution: It's better to trim the string in case there are some blank(s) at the end.
strgroupids = strgroupids.Remove(strgroupids.Trim().Length - 1);
req.protocol + '://' + req.get('host') + req.originalUrl
or
req.protocol + '://' + req.headers.host + req.originalUrl
// I like this one as it survives from proxy server, getting the original host name
you can use Package Manager to add it as package and it is the easiest way to do. You don't need anything else to work with mysql database.
Or you can run below command in Package Manager Console
PM> Install-Package MySql.Data
From my experience, you don't need to do anything particular about file fields, you just tell it to make use of the file field:
from rest_framework import routers, serializers, viewsets
class Photo(django.db.models.Model):
file = django.db.models.ImageField()
def __str__(self):
return self.file.name
class PhotoSerializer(serializers.ModelSerializer):
class Meta:
model = models.Photo
fields = ('id', 'file') # <-- HERE
class PhotoViewSet(viewsets.ModelViewSet):
queryset = models.Photo.objects.all()
serializer_class = PhotoSerializer
router = routers.DefaultRouter()
router.register(r'photos', PhotoViewSet)
api_urlpatterns = ([
url('', include(router.urls)),
], 'api')
urlpatterns += [
url(r'^api/', include(api_urlpatterns)),
]
and you're ready to upload files:
curl -sS http://example.com/api/photos/ -F 'file=@/path/to/file'
Add -F field=value
for each extra field your model has. And don't forget to add authentication.
You should restart your Xampp or whatever server you're runnung, make sure sq
https://play.golang.org/p/JGZ7mN0-U-
for k, v := range m {
fmt.Printf("key[%s] value[%s]\n", k, v)
}
or
for k := range m {
fmt.Printf("key[%s] value[%s]\n", k, m[k])
}
Go language specs for for
statements specifies that the first value is the key, the second variable is the value, but doesn't have to be present.
The free version of TightVnc viewer (I have TightVnc Viewer 1.5.4 8/3/2011) build does not support this. What you need is RealVNC but VNC Enterprise Edition 4.2 or the Personal Edition. Unfortunately this is not free and you have to pay for a license.
From the RealVNC website [releasenote] http://www.realvnc.com/products/enterprise/4.2/release-notes.html
VNC Viewer: Full-screen mode can span monitors on a multi-monitor system.
The setInterval method returns an interval ID that you need to pass to clearInterval
in order to clear the interval. You're passing a function, which won't work. Here's an example of a working setInterval/clearInterval
var interval_id = setInterval(myMethod,500);
clearInterval(interval_id);
To summarize the contents of other (already good!) answers, isinstance
caters for inheritance (an instance of a derived class is an instance of a base class, too), while checking for equality of type
does not (it demands identity of types and rejects instances of subtypes, AKA subclasses).
Normally, in Python, you want your code to support inheritance, of course (since inheritance is so handy, it would be bad to stop code using yours from using it!), so isinstance
is less bad than checking identity of type
s because it seamlessly supports inheritance.
It's not that isinstance
is good, mind you—it's just less bad than checking equality of types. The normal, Pythonic, preferred solution is almost invariably "duck typing": try using the argument as if it was of a certain desired type, do it in a try
/except
statement catching all exceptions that could arise if the argument was not in fact of that type (or any other type nicely duck-mimicking it;-), and in the except
clause, try something else (using the argument "as if" it was of some other type).
basestring
is, however, quite a special case—a builtin type that exists only to let you use isinstance
(both str
and unicode
subclass basestring
). Strings are sequences (you could loop over them, index them, slice them, ...), but you generally want to treat them as "scalar" types—it's somewhat incovenient (but a reasonably frequent use case) to treat all kinds of strings (and maybe other scalar types, i.e., ones you can't loop on) one way, all containers (lists, sets, dicts, ...) in another way, and basestring
plus isinstance
helps you do that—the overall structure of this idiom is something like:
if isinstance(x, basestring)
return treatasscalar(x)
try:
return treatasiter(iter(x))
except TypeError:
return treatasscalar(x)
You could say that basestring
is an Abstract Base Class ("ABC")—it offers no concrete functionality to subclasses, but rather exists as a "marker", mainly for use with isinstance
. The concept is obviously a growing one in Python, since PEP 3119, which introduces a generalization of it, was accepted and has been implemented starting with Python 2.6 and 3.0.
The PEP makes it clear that, while ABCs can often substitute for duck typing, there is generally no big pressure to do that (see here). ABCs as implemented in recent Python versions do however offer extra goodies: isinstance
(and issubclass
) can now mean more than just "[an instance of] a derived class" (in particular, any class can be "registered" with an ABC so that it will show as a subclass, and its instances as instances of the ABC); and ABCs can also offer extra convenience to actual subclasses in a very natural way via Template Method design pattern applications (see here and here [[part II]] for more on the TM DP, in general and specifically in Python, independent of ABCs).
For the underlying mechanics of ABC support as offered in Python 2.6, see here; for their 3.1 version, very similar, see here. In both versions, standard library module collections (that's the 3.1 version—for the very similar 2.6 version, see here) offers several useful ABCs.
For the purpose of this answer, the key thing to retain about ABCs (beyond an arguably more natural placement for TM DP functionality, compared to the classic Python alternative of mixin classes such as UserDict.DictMixin) is that they make isinstance
(and issubclass
) much more attractive and pervasive (in Python 2.6 and going forward) than they used to be (in 2.5 and before), and therefore, by contrast, make checking type equality an even worse practice in recent Python versions than it already used to be.
Another method could be to split the string by ":" and then pop off the end.
var newString = string.split(":").pop();
I use the package enumitem. You may then set such margins when you declare your lists (enumerate, description, itemize):
\begin{itemize}[leftmargin=0cm]
\item Foo
\item Bar
\end{itemize}
Naturally, the package provides lots of other nice customizations for lists (use 'label=' to change the bullet, use 'itemsep=' to change the spacing between items, etc...)
${fn:contains({1,2,4,8}, 2)}
OR
<c:if test = "${fn:contains(theString, 'test')}">
<p>Found test string<p>
</c:if>
<c:if test = "${fn:contains(theString, 'TEST')}">
<p>Found TEST string<p>
</c:if>
When using size_t be careful with the following expression
size_t i = containner.find("mytoken");
size_t x = 99;
if (i-x>-1 && i+x < containner.size()) {
cout << containner[i-x] << " " << containner[i+x] << endl;
}
You will get false in the if expression regardless of what value you have for x. It took me several days to realize this (the code is so simple that I did not do unit test), although it only take a few minutes to figure the source of the problem. Not sure it is better to do a cast or use zero.
if ((int)(i-x) > -1 or (i-x) >= 0)
Both ways should work. Here is my test run
size_t i = 5;
cerr << "i-7=" << i-7 << " (int)(i-7)=" << (int)(i-7) << endl;
The output: i-7=18446744073709551614 (int)(i-7)=-2
I would like other's comments.
// Angular
import { Pipe, PipeTransform } from '@angular/core';
import { DomSanitizer, SafeHtml, SafeStyle, SafeScript, SafeUrl, SafeResourceUrl } from '@angular/platform-browser';
/**
* Sanitize HTML
*/
@Pipe({
name: 'safe'
})
export class SafePipe implements PipeTransform {
/**
* Pipe Constructor
*
* @param _sanitizer: DomSanitezer
*/
// tslint:disable-next-line
constructor(protected _sanitizer: DomSanitizer) {
}
/**
* Transform
*
* @param value: string
* @param type: string
*/
transform(value: string, type: string): SafeHtml | SafeStyle | SafeScript | SafeUrl | SafeResourceUrl {
switch (type) {
case 'html':
return this._sanitizer.bypassSecurityTrustHtml(value);
case 'style':
return this._sanitizer.bypassSecurityTrustStyle(value);
case 'script':
return this._sanitizer.bypassSecurityTrustScript(value);
case 'url':
return this._sanitizer.bypassSecurityTrustUrl(value);
case 'resourceUrl':
return this._sanitizer.bypassSecurityTrustResourceUrl(value);
default:
return this._sanitizer.bypassSecurityTrustHtml(value);
}
}
}
{{ data.url | safe:'url' }}
// Public properties
itsSafe: SafeHtml;
// Private properties
private safePipe: SafePipe = new SafePipe(this.domSanitizer);
/**
* Component constructor
*
* @param safePipe: SafeHtml
* @param domSanitizer: DomSanitizer
*/
constructor(private safePipe: SafePipe, private domSanitizer: DomSanitizer) {
}
/**
* On init
*/
ngOnInit(): void {
this.itsSafe = this.safePipe.transform('<h1>Hi</h1>', 'html');
}
You can make the input statement a while True loop so it repeatedly asks for the users input and then break that loop if the user enters the response you would like. And you can use try and except blocks to handle invalid responses.
while True:
var = True
try:
age = int(input("Please enter your age: "))
except ValueError:
print("Invalid input.")
var = False
if var == True:
if age >= 18:
print("You are able to vote in the United States.")
break
else:
print("You are not able to vote in the United States.")
The var variable is just so that if the user enters a string instead of a integer the program wont return "You are not able to vote in the United States."
In Windows 10, using the Command Prompt terminal, the following works for me:
ssh-agent cmd
ssh-add
You should then be asked for a passphrase after this:
Enter passphrase for /c/Users/username/.ssh/id_rsa:
With this code you can also to add to your query "filter" or "join" and this work!
query = session.query(User)
def query_to_dict(query):
def _create_dict(r):
return {c.get('name'): getattr(r, c.get('name')) for c in query.column_descriptions}
return [_create_dict(r) for r in query]
String cleanString = dirtyString.strip() ; // Call new `String::string` method.
String::strip…
The old String::trim
method has a strange definition of whitespace.
As discussed here, Java 11 adds new strip…
methods to the String
class. These use a more Unicode-savvy definition of whitespace. See the rules of this definition in the class JavaDoc for Character::isWhitespace
.
Example code.
String input = " some Thing ";
System.out.println("before->>"+input+"<<-");
input = input.strip();
System.out.println("after->>"+input+"<<-");
Or you can strip just the leading or just the trailing whitespace.
You do not mention exactly what code point(s) make up your newlines. I imagine your newline is likely included in this list of code points targeted by strip
:
I had a similar issue recently while working on recursion and nested lists. I declared:
print(r_sum([1,2,3[1,2,3],]))
instead of
print(r_sum([1,2,3,[1,2,3],]))
Note the comma after the number 3
adjust his code:
Object.prototype.each = function(iterateFunc) {
var counter = 0,
keys = Object.keys(this),
currentKey,
len = keys.length;
var that = this;
var next = function() {
if (counter < len) {
currentKey = keys[counter++];
iterateFunc(currentKey, that[currentKey]);
next();
} else {
that = counter = keys = currentKey = len = next = undefined;
}
};
next();
};
({ property1: 'sdsfs', property2: 'chat' }).each(function(key, val) {
// do things
console.log(key);
});
When you write the statement
*src = "anotherstring";
the compiler sees the constant string "abcdefghijklmnop"
like an array. Imagine you had written the following code instead:
char otherstring[14] = "anotherstring";
...
*src = otherstring;
Now, it's a bit clearer what is going on. The left-hand side, *src
, refers to a char
(since src
is of type pointer-to-char
) whereas the right-hand side, otherstring
, refers to a pointer.
This isn't strictly forbidden because you may want to store the address that a pointer points to. However, an explicit cast is normally used in that case (which isn't too common of a case). The compiler is throwing up a red flag because your code is likely not doing what you think it is.
It appears to me that you are trying to assign a string. Strings in C aren't data types like they are in C++ and are instead implemented with char
arrays. You can't directly assign values to a string like you are trying to do. Instead, you need to use functions like strncpy
and friends from <string.h>
and use char
arrays instead of char
pointers. If you merely want the pointer to point to a different static string, then drop the *
.
Open Applicaction -> Accessories -> Terminal
Type commandline as below...
sudo apt-get install openjdk-7-jdk
Type commandline as below...
apt-cache search jdk
(Note: openjdk-7-jdk is symbolically used here. You can choose the JDK version as per your requirement.)
For "JAVA_HOME" (Environment Variable) type command as shown below, in "Terminal" using your installation path...
export JAVA_HOME=/usr/lib/jvm/java-7-openjdk
(Note: "/usr/lib/jvm/java-7-openjdk" is symbolically used here just for demostration. You should use your path as per your installation.)
For "PATH" (Environment Variable) type command as shown below, in "Terminal" using your installation path...
export PATH=$PATH:/usr/lib/jvm/java-7-openjdk/bin
(Note: "/usr/lib/jvm/java-7-openjdk" is symbolically used here just for demostration. You should use your path as per your installation.)
Check for "open jdk" installation, just type command in "Terminal" as shown below
javac -version
There is a setting inside the PDF file that turns on the allow saving with data bit. However, it requires that you have a copy of Adobe Acrobat installed to change the bit.
The only other option is to print it to a PDF print driver which would save the data merged with the pdf file.
UPDATE: The relevant information from adobe is at: http://www.adobeforums.com/webx?13@@.3bbb313f/7
For me turning on and off the setting on
iOS Simulator -> Hardware -> Keyboard -> Connect Hardware Keyboard
proved to fix the issue on simulators.
This answer shows usage of LINQ (Aggregate
) as requested in the question and is not intended for everyday use. Because this does not use a StringBuilder
it will have horrible performance for very long sequences. For regular code use String.Join
as shown in the other answer
Use aggregate queries like this:
string[] words = { "one", "two", "three" };
var res = words.Aggregate(
"", // start with empty string to handle empty list case.
(current, next) => current + ", " + next);
Console.WriteLine(res);
This outputs:
, one, two, three
An aggregate is a function that takes a collection of values and returns a scalar value. Examples from T-SQL include min, max, and sum. Both VB and C# have support for aggregates. Both VB and C# support aggregates as extension methods. Using the dot-notation, one simply calls a method on an IEnumerable object.
Remember that aggregate queries are executed immediately.
More information - MSDN: Aggregate Queries
If you really want to use Aggregate
use variant using StringBuilder
proposed in comment by CodeMonkeyKing which would be about the same code as regular String.Join
including good performance for large number of objects:
var res = words.Aggregate(
new StringBuilder(),
(current, next) => current.Append(current.Length == 0? "" : ", ").Append(next))
.ToString();
There is a lot of mess going on here - people suggest solutions for non-primitive values, try to implement some sorting algos from the ground, give solutions involving additional libraries, showing off some hacky ones etc. The answer to the original question is 50/50. For those who just want to copy/paste:
// our initial int[] array containing primitives
int[] arrOfPrimitives = new int[]{1,2,3,4,5,6};
// we have to convert it into array of Objects, using java's boxing
Integer[] arrOfObjects = new Integer[arrOfPrimitives.length];
for (int i = 0; i < arrOfPrimitives.length; i++)
arrOfObjects[i] = new Integer(arrOfPrimitives[i]);
// now when we have an array of Objects we can use that nice built-in method
Arrays.sort(arrOfObjects, Collections.reverseOrder());
arrOfObjects
is {6,5,4,3,2,1}
now. If you have an array of something other than ints - use the corresponding object instead of Integer
.
Simple answer
If you want to match single character, put it inside those brackets [ ]
Examples
...and so on. You can check your regular expresion online on this site: https://regex101.com/
(updated based on comment)
Put them in brackets []
:
var cleanString = dirtyString.replace(/[\|&;\$%@"<>\(\)\+,]/g, "");
You want the following:
ALTER TABLE mytable MODIFY mycolumn VARCHAR(255);
Columns are nullable by default. As long as the column is not declared UNIQUE
or NOT NULL
, there shouldn't be any problems.
The file object is a buffer. When you read from the buffer, that portion that you read is consumed (the read position is shifted forward). When you read through the entire file, the read position is at the end of the file (EOF), so it returns nothing because there is nothing left to read.
If you have to reset the read position on a file object for some reason, you can do:
f.seek(0)
These are command line instructions where the above Graphical version is not available or you can not open the Lombok jar file by double clicks, like in Ubuntu.
At the time of writing using Lombok is not straightforward as just adding a dependency in your POM xml file and adding the annotation. These are the next steps:
1) Locate where your Lombok jar file is downloaded by maven; Usually it is in .m2 folder inside your home directory. Then execute the following command.
java -jar lombok-1.16.18.jar install <path of where your IDE is installed>
example usage:
java -jar lombok-x.xx.xx.jar install ~/Downloads/spring-tool-suite-3.9.1.RELEASE-e4.7.1a-linux-gtk-x86_64/sts-bundle/sts-3.9.1.RELEASE/
the above command basically makes a configuration update in your IDE .ini
or configuration
file something like below:
-javaagent:/home/neshant/Downloads/spring-tool-suite-3.9.1.RELEASE-e4.7.1a-linux-gtk-x86_64/sts-bundle/sts-3.9.1.RELEASE/lombok.jar
this ensures that the @Data
or @Getter
or @Setter
annotations are understood by the IDE. It is weird that it had to be so complex.
Here is the code that will not download courpt files
$filename = "myfile.jpg";
$file = "/uploads/images/".$filename;
header('Content-type: application/octet-stream');
header("Content-Type: ".mime_content_type($file));
header("Content-Disposition: attachment; filename=".$filename);
while (ob_get_level()) {
ob_end_clean();
}
readfile($file);
I have included mime_content_type which will return content type of file .
To prevent from corrupt file download i have added ob_get_level() and ob_end_clean();
Until [character] (t
). It is useful for any command which accepts a range. My favorite is ct;
or ct)
which deletes everything up to the trailing semicolon / closing parentheses and then places you in insert mode.
Also, G
and gg
are useful (Go to bottom and top respectively).
You might want to do something like this (if you're in java 5 & up)
Scanner scanner = new Scanner(new File("tall.txt"));
int [] tall = new int [100];
int i = 0;
while(scanner.hasNextInt()){
tall[i++] = scanner.nextInt();
}
I tried to run insertion of random data into MyISAM and InnoDB tables. The result was quite shocking. MyISAM needed a few seconds less for inserting 1 million rows than InnoDB for just 10 thousand!
Here I am iterating each node and creating meaningful node names. If you notice, instanceOf Array and instanceOf Object pretty much does the same thing (in my application, i am giving different logic though)
function iterate(obj,parent_node) {
parent_node = parent_node || '';
for (var property in obj) {
if (obj.hasOwnProperty(property)) {
var node = parent_node + "/" + property;
if(obj[property] instanceof Array) {
//console.log('array: ' + node + ":" + obj[property]);
iterate(obj[property],node)
} else if(obj[property] instanceof Object){
//console.log('Object: ' + node + ":" + obj[property]);
iterate(obj[property],node)
}
else {
console.log(node + ":" + obj[property]);
}
}
}
}
note - I am inspired by Ondrej Svejdar's answer. But this solution has better performance and less ambiguous
import class folder does not work for me, but add jar worked!
1. put the class folder under the project folder
2. Zip the class folder
3. Highlight project name, click "Project" in the top toolbar, click "Properties", click "Libraries" tab, click "Add External jars".
4. Add the zip file. Done!
Make sure you've set your locale settings right before running the script from the shell, e.g.
$ locale -a | grep "^en_.\+UTF-8"
en_GB.UTF-8
en_US.UTF-8
$ export LC_ALL=en_GB.UTF-8
$ export LANG=en_GB.UTF-8
Docs: man locale
, man setlocale
.
My problem was that I wanted all the columns in a row to have the same background. I grouped both by row and by column, and with the top two solutions here I got all the rows in column 1 with a colored background, all the rows in column 2 with a white background, all the rows in column 3 with a colored background, and so on. It's as if RowNumber
and bOddRow
(of Catch22's solution) pay attention to my column group instead of ignoring that and only alternating with a new row.
What I wanted is for all the columns in row 1 to have a white background, then all the columns in row 2 to have a colored background, then all the columns in row 3 to have a white background, and so on. I got this effect by using the selected answer but instead of passing Nothing
to RowNumber
, I passed the name of my column group, e.g.
=IIf(RowNumber("MyColumnGroupName") Mod 2 = 0, "AliceBlue", "Transparent")
Thought this might be useful to someone else.
provided I understood correctly, you should look for binascii.unhexlify
import binascii
a='45222e'
s=binascii.unhexlify(a)
b=[ord(x) for x in s]
I'd iterate through the options, comparing the text to what I want to be selected, then set the selected attribute on that option. Once you find the correct one, terminate the iteration (unless you have a multiselect).
$('#dropdown').find('option').each( function() {
var $this = $(this);
if ($this.text() == 'B') {
$this.attr('selected','selected');
return false;
}
});
raw.githubusercontent.com/username/repo-name/branch-name/path
Replace username
with the username of the user that created the repo.
Replace repo-name
with the name of the repo.
Replace branch-name
with the name of the branch.
Replace path
with the path to the file.
To reverse to go to GitHub.com:
GitHub.com/username/repo-name/directory-path/blob/branch-name/filename
A file can be tracked or not, you use hg add to track a file and hg remove or hg forget to un-track it. Using hg remove without flags will both delete the file and un-track it, hg forget will simply un-track it without deleting it.
pyplot
is a sub-module of matplotlib
which doesn't get imported with a simple import matplotlib
.
>>> import matplotlib
>>> print matplotlib.pyplot
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'pyplot'
>>> import matplotlib.pyplot
>>>
It seems customary to do: import matplotlib.pyplot as plt
at which time you can use the various functions and classes it contains:
p = plt.plot(...)
try this:
mysql -uusername -ppassword --local-infile scrapping -e "LOAD DATA LOCAL INFILE 'CSVname.csv' INTO TABLE table_name FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n'"
Both these work for me. Maybe post a complete example?
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.ToggleButton;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.CornerRadii;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class PaneBackgroundTest extends Application {
@Override
public void start(Stage primaryStage) {
BorderPane root = new BorderPane();
VBox vbox = new VBox();
root.setCenter(vbox);
ToggleButton toggle = new ToggleButton("Toggle color");
HBox controls = new HBox(5, toggle);
controls.setAlignment(Pos.CENTER);
root.setBottom(controls);
// vbox.styleProperty().bind(Bindings.when(toggle.selectedProperty())
// .then("-fx-background-color: cornflowerblue;")
// .otherwise("-fx-background-color: white;"));
vbox.backgroundProperty().bind(Bindings.when(toggle.selectedProperty())
.then(new Background(new BackgroundFill(Color.CORNFLOWERBLUE, CornerRadii.EMPTY, Insets.EMPTY)))
.otherwise(new Background(new BackgroundFill(Color.WHITE, CornerRadii.EMPTY, Insets.EMPTY))));
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Try this code
public class WiFiDemo extends Activity implements OnClickListener
{
WifiManager wifi;
ListView lv;
TextView textStatus;
Button buttonScan;
int size = 0;
List<ScanResult> results;
String ITEM_KEY = "key";
ArrayList<HashMap<String, String>> arraylist = new ArrayList<HashMap<String, String>>();
SimpleAdapter adapter;
/* Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textStatus = (TextView) findViewById(R.id.textStatus);
buttonScan = (Button) findViewById(R.id.buttonScan);
buttonScan.setOnClickListener(this);
lv = (ListView)findViewById(R.id.list);
wifi = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
if (wifi.isWifiEnabled() == false)
{
Toast.makeText(getApplicationContext(), "wifi is disabled..making it enabled", Toast.LENGTH_LONG).show();
wifi.setWifiEnabled(true);
}
this.adapter = new SimpleAdapter(WiFiDemo.this, arraylist, R.layout.row, new String[] { ITEM_KEY }, new int[] { R.id.list_value });
lv.setAdapter(this.adapter);
registerReceiver(new BroadcastReceiver()
{
@Override
public void onReceive(Context c, Intent intent)
{
results = wifi.getScanResults();
size = results.size();
}
}, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
}
public void onClick(View view)
{
arraylist.clear();
wifi.startScan();
Toast.makeText(this, "Scanning...." + size, Toast.LENGTH_SHORT).show();
try
{
size = size - 1;
while (size >= 0)
{
HashMap<String, String> item = new HashMap<String, String>();
item.put(ITEM_KEY, results.get(size).SSID + " " + results.get(size).capabilities);
arraylist.add(item);
size--;
adapter.notifyDataSetChanged();
}
}
catch (Exception e)
{ }
}
}
WiFiDemo.xml :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="16dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:id="@+id/textStatus"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Status" />
<Button
android:id="@+id/buttonScan"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:text="Scan" />
</LinearLayout>
<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="20dp"></ListView>
</LinearLayout>
For ListView- row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="8dp">
<TextView
android:id="@+id/list_value"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="14dp" />
</LinearLayout>
Add these permission in AndroidManifest.xml
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
This BASH script will execute the python unittest test directory from anywhere in the file system, no matter what working directory you are in.
This is useful when staying in the ./src
or ./example
working directory and you need a quick unit test:
#!/bin/bash
this_program="$0"
dirname="`dirname $this_program`"
readlink="`readlink -e $dirname`"
python -m unittest discover -s "$readlink"/test -v
No need for a test/__init__.py
file to burden your package/memory-overhead during production.
Another option in case you don't wanna use a plugin:
Ctrl+` or
View -> Show Console
type on the console the following command:
view.encoding()
In case you want to something more intrusive, there's a option to create an shortcut that executes the following command:
sublime.message_dialog(view.encoding())
You need to put your code into ngOnInit
and use the this
keyword:
ngOnInit() {
this.booksByStoreID = this.books.filter(
book => book.store_id === this.store.id);
}
You need ngOnInit
because the input store
wouldn't be set into the constructor:
ngOnInit is called right after the directive's data-bound properties have been checked for the first time, and before any of its children have been checked. It is invoked only once when the directive is instantiated.
(https://angular.io/docs/ts/latest/api/core/index/OnInit-interface.html)
In your code, the books filtering is directly defined into the class content...
This may be an old response but I used some examples from this post to create a comparator that would sort an ArrayList
of HashMap<String, String>
by one object in the list, that being the timestamp.
I have these objects:
ArrayList<Map<String, String>> alList = new ArrayList<Map<String, String>>();
The map objects are as follows:
Map<String, Object> map = new HashMap<>();
// of course this is the actual formatted date below in the timestamp
map.put("timestamp", "MM/dd/yyyy HH:mm:ss");
map.put("item1", "my text goes here");
map.put("item2", "my text goes here");
That mapping is what I use to load all my objects into the array list, using the alList.add(map)
function, within a loop.
Now, I created my own comparator:
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
public class DateSorter implements Comparator {
public int compare(Object firstObjToCompare, Object secondObjToCompare) {
String firstDateString = ((HashMap<String, String>) firstObjToCompare).get("timestamp");
String secondDateString = ((HashMap<String, String>) secondObjToCompare).get("timestamp");
if (secondDateString == null || firstDateString == null) {
return 0;
}
// Convert to Dates
DateTimeFormatter dtf = DateTimeFormat.forPattern("MM/dd/yyyy HH:mm:ss");
DateTime firstDate = dtf.parseDateTime(firstDateString);
DateTime secondDate = dtf.parseDateTime(secondDateString);
if (firstDate.isAfter(secondDate)) return -1;
else if (firstDate.isBefore(secondDate)) return 1;
else return 0;
}
}
I can now just call the Comparator at any time on the array and it will sort my array, giving me the Latest timestamp in position 0 (top of the list) and the earliest timestamp at the end of the list. New posts get put to the top basically.
Collections.sort(alList, new DateSorter());
This may help someone out, which is why I posted it. Take into consideration the return statements within the compare() function. There are 3 types of results. Returning 0 if they are equal, returning >0 if the first date is before the second date and returning <0 if the first date is after the second date. If you want your list to be reversed, then just switch those two return statements! Simple =]
make sure that you disable the proxy setting. settting > apperance and behaviour > Http Proxy > and select no proxy check box and check the connection after you select no proxy or auto detect proxy setting > the apply ok
System.out.println(Integer.toBinaryString(2 << 11));
Shifts binary 2(10
) by 11 times to the left. Hence: 1000000000000
System.out.println(Integer.toBinaryString(2 << 22));
Shifts binary 2(10
) by 22 times to the left. Hence : 100000000000000000000000
System.out.println(Integer.toBinaryString(2 << 33));
Now, int is of 4 bytes,hence 32 bits. So when you do shift by 33, it's equivalent to shift by 1. Hence : 100
No.
A developer is responsible for keeping track of time-zone information associated with a DateTime value via some external mechanism.
A quote from an excellent article here. A must read for every .Net developer.
So my advice is to write a little wrapper class that suits your needs.
@slebetmen's accepted answer explains well why this doesn't work. In addition to the two patterns presented in that answer, another option is to only access your async properties through a custom async getter. The constructor() can then trigger the async creation of the properties, but the getter then checks to see if the property is available before it uses or returns it.
This approach is particularly useful when you want to initialize a global object once on startup, and you want to do it inside a module. Instead of initializing in your index.js
and passing the instance in the places that need it, simply require
your module wherever the global object is needed.
Usage
const instance = new MyClass();
const prop = await instance.getMyProperty();
Implementation
class MyClass {
constructor() {
this.myProperty = null;
this.myPropertyPromise = this.downloadAsyncStuff();
}
async downloadAsyncStuff() {
// await yourAsyncCall();
this.myProperty = 'async property'; // this would instead by your async call
return this.myProperty;
}
getMyProperty() {
if (this.myProperty) {
return this.myProperty;
} else {
return this.myPropertyPromise;
}
}
}
Add the following to the header:
<script language="javascript" type="text/javascript">
function limitText(limitField, limitNum) {
if (limitField.value.length > limitNum) {
limitField.value = limitField.value.substring(0, limitNum);
}
}
</script>
<input type="text" id="sessionNo" name="sessionNum" onKeyDown="limitText(this,5);"
onKeyUp="limitText(this,5);"" />
Same issue: Was using WebSockets & sockjs-client/1.0.3/sockjs library with @ServerEndPoint on Java Server side. The websocket connections kept breaking variably.
I moved to using Stomp and sockJS (abandoning the @ServerEndpoint) but encountered another issue popular on SO - /info=34424 - with 404 error -
I had to abandon using the xml approach of Stomp Spring library as suggested at other places. I have Spring 4.2 in my project and many SockJS Stomp implementations usually work well with Spring Boot implementations. This implementation from Baeldung worked(for me without changing from Spring 4.2 to 5).
After Using the dependencies mentioned in his blog, it still gave me ClassNotFoundError. I added the below dependency to fix it.
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.3.RELEASE</version>
</dependency>
you can do something like that:
where regexp_like(name, 'string$', 'i');
You just need to specify which columns you're inserting directly into:
INSERT INTO [dbo].[rLicenses] ([Name]) VALUES ('test')
Views can be picky like that.
I found out that composer runs with the php-version /usr/bin/env finds first in $PATH, which is 7.1.33 in my case on MacOs. So shifting mamp's php to the beginning helped me here.
PHPVER=$(/usr/libexec/PlistBuddy -c "print phpVersion" ~/Library/Preferences/de.appsolute.mamppro.plist)
export PATH=/Applications/MAMP/bin/php/php${PHPVER}/bin:$PATH
Functions cannot be used to modify base table information, use a stored procedure.
As has been mentioned, as of PHP 5.6+ you can (should!) use the ...
token (aka "splat operator", part of the variadic functions functionality) to easily call a function with an array of arguments:
<?php
function variadic($arg1, $arg2)
{
// Do stuff
echo $arg1.' '.$arg2;
}
$array = ['Hello', 'World'];
// 'Splat' the $array in the function call
variadic(...$array);
// 'Hello World'
Note: array items are mapped to arguments by their position in the array, not their keys.
As per CarlosCarucce's comment, this form of argument unpacking is the fastest method by far in all cases. In some comparisons, it's over 5x faster than call_user_func_array
.
Because I think this is really useful (though not directly related to the question): you can type-hint the splat operator parameter in your function definition to make sure all of the passed values match a specific type.
(Just remember that doing this it MUST be the last parameter you define and that it bundles all parameters passed to the function into the array.)
This is great for making sure an array contains items of a specific type:
<?php
// Define the function...
function variadic($var, SomeClass ...$items)
{
// $items will be an array of objects of type `SomeClass`
}
// Then you can call...
variadic('Hello', new SomeClass, new SomeClass);
// or even splat both ways
$items = [
new SomeClass,
new SomeClass,
];
variadic('Hello', ...$items);
No, the problem is that *
is a reserved character in regexes, so you need to escape it.
String [] separado = line.split("\\*");
*
means "zero or more of the previous expression" (see the Pattern
Javadocs), and you weren't giving it any previous expression, making your split expression illegal. This is why the error was a PatternSyntaxException
.
To take this one even further, you could create a classnames-like helper function:
const styleRules = (...rules) => {
return rules.filter(Boolean).reduce((result, rule) => {
return { ...result, ...rule };
}, {});
};
And then use it conditionally in your components:
<div style={
styleRules(
divStyle,
(window.innerWidth >= 768) && divStyleMd,
(window.innerWidth < 768) && divStyleSm
)
}>Hello World!</div>
this fails:
DECLARE @vPortalUID NVARCHAR(32)
SET @vPortalUID='2A66057D-F4E5-4E2B-B2F1-38C51A96D385'
DECLARE @nPortalUID AS UNIQUEIDENTIFIER
SET @nPortalUID = CAST(@vPortalUID AS uniqueidentifier)
PRINT @nPortalUID
this works
DECLARE @vPortalUID NVARCHAR(36)
SET @vPortalUID='2A66057D-F4E5-4E2B-B2F1-38C51A96D385'
DECLARE @nPortalUID AS UNIQUEIDENTIFIER
SET @nPortalUID = CAST(@vPortalUID AS UNIQUEIDENTIFIER)
PRINT @nPortalUID
the difference is NVARCHAR(36)
, your input parameter is too small!
Object.assign will only work in single level of object reference.
To do a copy in any depth use as below:
let x = {'a':'a','b':{'c':'c'}};
let y = JSON.parse(JSON.stringify(x));
If want to use any library instead then go with the loadash.js
library.
100% working code with demo You can also send multiple emails using this answer.
Download Project HERE
Step 1: Download mail, activation, additional jar files and add in your project libs folder in android studio. I added a screenshot see below Download link
Login with gmail (using your from mail) and TURN ON toggle button LINK
Most of the people forget about this step i hope you will not.
Step 2 : After completing this process. Copy and past this classes into your project.
GMail.java
import android.util.Log;
import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class GMail {
final String emailPort = "587";// gmail's smtp port
final String smtpAuth = "true";
final String starttls = "true";
final String emailHost = "smtp.gmail.com";
String fromEmail;
String fromPassword;
List<String> toEmailList;
String emailSubject;
String emailBody;
Properties emailProperties;
Session mailSession;
MimeMessage emailMessage;
public GMail() {
}
public GMail(String fromEmail, String fromPassword,
List<String> toEmailList, String emailSubject, String emailBody) {
this.fromEmail = fromEmail;
this.fromPassword = fromPassword;
this.toEmailList = toEmailList;
this.emailSubject = emailSubject;
this.emailBody = emailBody;
emailProperties = System.getProperties();
emailProperties.put("mail.smtp.port", emailPort);
emailProperties.put("mail.smtp.auth", smtpAuth);
emailProperties.put("mail.smtp.starttls.enable", starttls);
Log.i("GMail", "Mail server properties set.");
}
public MimeMessage createEmailMessage() throws AddressException,
MessagingException, UnsupportedEncodingException {
mailSession = Session.getDefaultInstance(emailProperties, null);
emailMessage = new MimeMessage(mailSession);
emailMessage.setFrom(new InternetAddress(fromEmail, fromEmail));
for (String toEmail : toEmailList) {
Log.i("GMail", "toEmail: " + toEmail);
emailMessage.addRecipient(Message.RecipientType.TO,
new InternetAddress(toEmail));
}
emailMessage.setSubject(emailSubject);
emailMessage.setContent(emailBody, "text/html");// for a html email
// emailMessage.setText(emailBody);// for a text email
Log.i("GMail", "Email Message created.");
return emailMessage;
}
public void sendEmail() throws AddressException, MessagingException {
Transport transport = mailSession.getTransport("smtp");
transport.connect(emailHost, fromEmail, fromPassword);
Log.i("GMail", "allrecipients: " + emailMessage.getAllRecipients());
transport.sendMessage(emailMessage, emailMessage.getAllRecipients());
transport.close();
Log.i("GMail", "Email sent successfully.");
}
}
SendMailTask.java
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.util.Log;
import java.util.List;
public class SendMailTask extends AsyncTask {
private ProgressDialog statusDialog;
private Activity sendMailActivity;
public SendMailTask(Activity activity) {
sendMailActivity = activity;
}
protected void onPreExecute() {
statusDialog = new ProgressDialog(sendMailActivity);
statusDialog.setMessage("Getting ready...");
statusDialog.setIndeterminate(false);
statusDialog.setCancelable(false);
statusDialog.show();
}
@Override
protected Object doInBackground(Object... args) {
try {
Log.i("SendMailTask", "About to instantiate GMail...");
publishProgress("Processing input....");
GMail androidEmail = new GMail(args[0].toString(),
args[1].toString(), (List) args[2], args[3].toString(),
args[4].toString());
publishProgress("Preparing mail message....");
androidEmail.createEmailMessage();
publishProgress("Sending email....");
androidEmail.sendEmail();
publishProgress("Email Sent.");
Log.i("SendMailTask", "Mail Sent.");
} catch (Exception e) {
publishProgress(e.getMessage());
Log.e("SendMailTask", e.getMessage(), e);
}
return null;
}
@Override
public void onProgressUpdate(Object... values) {
statusDialog.setMessage(values[0].toString());
}
@Override
public void onPostExecute(Object result) {
statusDialog.dismiss();
}
}
Step 3 : Now you can change this class according to your needs also you can send multiple mail using this class. i provide xml and java file both.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:paddingTop="30dp">
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="10dp"
android:text="From Email" />
<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF"
android:cursorVisible="true"
android:editable="true"
android:ems="10"
android:enabled="true"
android:inputType="textEmailAddress"
android:padding="5dp"
android:textColor="#000000">
<requestFocus />
</EditText>
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="10dp"
android:text="Password (For from email)" />
<EditText
android:id="@+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF"
android:ems="10"
android:inputType="textPassword"
android:padding="5dp"
android:textColor="#000000" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="10dp"
android:text="To Email" />
<EditText
android:id="@+id/editText3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffffff"
android:ems="10"
android:inputType="textEmailAddress"
android:padding="5dp"
android:textColor="#000000" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="10dp"
android:text="Subject" />
<EditText
android:id="@+id/editText4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffffff"
android:ems="10"
android:padding="5dp"
android:textColor="#000000" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="10dp"
android:text="Body" />
<EditText
android:id="@+id/editText5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffffff"
android:ems="10"
android:inputType="textMultiLine"
android:padding="35dp"
android:textColor="#000000" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Send Email" />
</LinearLayout>
SendMailActivity.java
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.util.Arrays;
import java.util.List;
public class SendMailActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button send = (Button) this.findViewById(R.id.button1);
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Log.i("SendMailActivity", "Send Button Clicked.");
String fromEmail = ((TextView) findViewById(R.id.editText1))
.getText().toString();
String fromPassword = ((TextView) findViewById(R.id.editText2))
.getText().toString();
String toEmails = ((TextView) findViewById(R.id.editText3))
.getText().toString();
List<String> toEmailList = Arrays.asList(toEmails
.split("\\s*,\\s*"));
Log.i("SendMailActivity", "To List: " + toEmailList);
String emailSubject = ((TextView) findViewById(R.id.editText4))
.getText().toString();
String emailBody = ((TextView) findViewById(R.id.editText5))
.getText().toString();
new SendMailTask(SendMailActivity.this).execute(fromEmail,
fromPassword, toEmailList, emailSubject, emailBody);
}
});
}
}
Note Dont forget to add internet permission in your AndroidManifest.xml file
<uses-permission android:name="android.permission.INTERNET"/>
Hope it work if it not then just comment down below.
Try %*s
and %-*s
and prefix each string with the column width:
>>> print "Location: %-*s Revision: %s" % (20,"10-10-10-10","1")
Location: 10-10-10-10 Revision: 1
>>> print "District: %-*s Date: %s" % (20,"Tower","May 16, 2012")
District: Tower Date: May 16, 2012
downloaded Sql server management 2008 r2 and got it installed. Its getting installed but when I try to connect it via .\SQLEXPRESS it shows error. DO I need to install any SQL service on my system?
You installed management studio which is just a management interface to SQL Server. If you didn't (which is what it seems like) already have SQL Server installed, you'll need to install it in order to have it on your system and use it.
http://www.microsoft.com/en-us/download/details.aspx?id=1695
Update:
Planned in the scope of 3.7 release
https://github.com/microsoft/TypeScript/issues/33352
You can try to write a custom function like that.
The main advantage of the approach is a type-checking and partial intellisense.
export function nullSafe<T,
K0 extends keyof T,
K1 extends keyof T[K0],
K2 extends keyof T[K0][K1],
K3 extends keyof T[K0][K1][K2],
K4 extends keyof T[K0][K1][K2][K3],
K5 extends keyof T[K0][K1][K2][K3][K4]>
(obj: T, k0: K0, k1?: K1, k2?: K2, k3?: K3, k4?: K4, k5?: K5) {
let result: any = obj;
const keysCount = arguments.length - 1;
for (var i = 1; i <= keysCount; i++) {
if (result === null || result === undefined) return result;
result = result[arguments[i]];
}
return result;
}
And usage (supports up to 5 parameters and can be extended):
nullSafe(a, 'b', 'c');
Example on playground.
You can use a custom stylesheet to color your debugger. You can put this code in C:\Documents and Settings\<User Name>\Local Settings\Application Data\Google\Chrome\User Data\Default\User StyleSheets\Custom.css
if you are in WinXP, but the directory varies by OS.
.console-error-level .console-message-text{
color: red;
}
.console-warning-level .console-message-text {
color: orange;
}
.console-log-level .console-message-text {
color:green;
}
There still is the old C way of providing optional arguments: a pointer that can be NULL when not present:
void write( int *optional = 0 ) {
if (optional) *optional = 5;
}
If you're using VS Express 2015, just go to your control panel --> programs and features --> select vs 2015 --> click change, then in the VS Express installer select 'Modify' --> select Publishing tools, and finish. Once setup completes the changes you will be able to create your installer.
Little late but, can create a reusable javascript function for this purpose:
// Arguments: number to round, number of decimal places
function roundNumber(rnum, rlength) {
var newnumber = Math.round(rnum * Math.pow(10, rlength)) / Math.pow(10, rlength);
return newnumber;
}
Call the function as
alert(roundNumber(192.168,2));
MD5 has its weaknesses (see Wikipedia), so there are some projects, which try to precompute Hashes. Wikipedia does also hint at some of these projects. One I know of (and respect) is ophrack. You can not tell the user their own password, but you might be able to tell them a password that works. But i think: Just mail thrm a new password in case they forgot.
On your shell type my_print_defaults --help
At the bottom of the result, you should be able to see the file from which the server reads the configurations. It prints something like this:
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/local/etc/my.cnf ~/.my.cnf
In R, use the addAwesomeMarkers() function. Sample code producing red marker:
leaflet() %>%
addTiles() %>%
addAwesomeMarkers(lng = -77.03654, lat = 38.8973, icon = awesomeIcons(icon = 'ion-ionic', library = 'ion', markerColor = 'red'))
Link for ion icons: http://ionicons.com/
If you want to save your numpy array (e.g. your_array = np.array([[1,2],[3,4]])
) to one cell, you could convert it first with your_array.tolist()
.
Then save it the normal way to one cell, with delimiter=';'
and the cell in the csv-file will look like this [[1, 2], [2, 4]]
Then you could restore your array like this:
your_array = np.array(ast.literal_eval(cell_string))
This site uses the method isEmpty()
.
Edit: content grabbed from site, before the url will going to be invalid.
Worksheets("Sheet1").Range("A1").Sort _
key1:=Worksheets("Sheet1").Range("A1")
Set currentCell = Worksheets("Sheet1").Range("A1")
Do While Not IsEmpty(currentCell)
Set nextCell = currentCell.Offset(1, 0)
If nextCell.Value = currentCell.Value Then
currentCell.EntireRow.Delete
End If
Set currentCell = nextCell
Loop
In the first step the data in the first column from Sheet1 will be sort. In the second step, all rows with same data will be removed.
One small trick. Using this I inject javascritp in a dynamically created HTML page
StringBuilder builder = new StringBuilder();
public String getString()
{
return builder.toString();
}
private DropdownContent _(String a)
{
builder.append(a);
return this;
}
public String funct_showhide()
{
return
_("function slidedown_showHide(boxId)").
_("{").
_("if(!slidedown_direction[boxId])slidedown_direction[boxId] = 1;").
_("if(!slideDownInitHeight[boxId])slideDownInitHeight[boxId] = 0;").
_("if(slideDownInitHeight[boxId]==0)slidedown_direction[boxId]=slidedownSpeed; ").
_("else slidedown_direction[boxId] = slidedownSpeed*-1;").
_("slidedownContentBox = document.getElementById(boxId);").
_("var subDivs = slidedownContentBox.getElementsByTagName('DIV');").
_("for(var no=0;no<subDivs.length;no++){").
_(" if(subDivs[no].className=='dhtmlgoodies_content')slidedownContent = subDivs[no];").
_("}").
_("contentHeight = slidedownContent.offsetHeight;").
_("slidedownContentBox.style.visibility='visible';").
_("slidedownActive = true;").
_("slidedown_showHide_start(slidedownContentBox,slidedownContent);").
_("}").getString();
}
You can use DATEPART(dw, GETDATE())
but be aware that the result will rely on SQL server setting @@DATEFIRST
value which is the first day of week setting (In Europe default value 7 which is Sunday).
If you want to change the first day of week to another value, you could use SET DATEFIRST
but this may affect everywhere in your query session which you do not want.
Alternative way is to explicitly specify the first day of week value as parameter and avoid depending on @@DATEFIRST
setting. You can use the following formula to achieve that when need it:
(DATEPART(dw, GETDATE()) + @@DATEFIRST + 6 - @WeekStartDay) % 7 + 1
where @WeekStartDay
is the first day of the week you want for your system (from 1 to 7 which means from Monday to Sunday).
I have wrapped it into below function so we can reuse it easily:
CREATE FUNCTION [dbo].[GetDayInWeek](@InputDateTime DATETIME, @WeekStartDay INT)
RETURNS INT
AS
BEGIN
--Note: @WeekStartDay is number from [1 - 7] which is from Monday to Sunday
RETURN (DATEPART(dw, @InputDateTime) + @@DATEFIRST + 6 - @WeekStartDay) % 7 + 1
END
Example usage:
GetDayInWeek('2019-02-04 00:00:00', 1)
It is equivalent to following (but independent to SQL server DATEFIRST setting):
SET DATEFIRST 1
DATEPART(dw, '2019-02-04 00:00:00')
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.
You can simply save your data in a variable and use find(to get single object of records) or filter(to get single array of records) method of JavaScript.
For example :-
let data = {
"list": [
{"name":"my Name","id":12,"type":"car owner"},
{"name":"my Name2","id":13,"type":"car owner2"},
{"name":"my Name4","id":14,"type":"car owner3"},
{"name":"my Name4","id":15,"type":"car owner5"}
]}
and now use below command onkeyup or enter
to get single object
data.list.find( record => record.name === "my Name")
to get single array object
data.list.filter( record => record.name === "my Name")
here you go Sir :-)
1
.myElement{
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-rendering: optimizeLegibility;
}
2
.myElement{
text-shadow: rgba(0,0,0,.01) 0 0 1px;
}
You can remove the warning by adding a '@' before the mysql_connect.
@mysql_connect('localhost','root','');
but as the warning is telling you, use mysqli or PDO since the mysql extension will be removed in the future.
Are you trying to remove a single value or all matching values?
If you are trying to remove a single value, how do you define the value you wish to remove?
The reason you don't get a key back when querying on values is because the dictionary could contain multiple keys paired with the specified value.
If you wish to remove all matching instances of the same value, you can do this:
foreach(var item in dic.Where(kvp => kvp.Value == value).ToList())
{
dic.Remove(item.Key);
}
And if you wish to remove the first matching instance, you can query to find the first item and just remove that:
var item = dic.First(kvp => kvp.Value == value);
dic.Remove(item.Key);
Note: The ToList()
call is necessary to copy the values to a new collection. If the call is not made, the loop will be modifying the collection it is iterating over, causing an exception to be thrown on the next attempt to iterate after the first value is removed.
Something that I didn't see mentioned in the other answers here is how you deal with unwinding when you don't know where the initial segue originated, which to me is an even more important use case. For example, say you have a help view controller (H) that you display modally from two different view controllers (A and B):
A ? H
B ? H
How do you set up the unwind segue so that you go back to the correct view controller? The answer is that you declare an unwind action in A and B with the same name, e.g.:
// put in AViewController.swift and BViewController.swift
@IBAction func unwindFromHelp(sender: UIStoryboardSegue) {
// empty
}
This way, the unwind will find whichever view controller (A or B) initiated the segue and go back to it.
In other words, think of the unwind action as describing where the segue is coming from, rather than where it is going to.
WHERE column_name LIKE '%save 50[%] off!%'
# SOCKS5 proxy for HTTP/HTTPS
proxiesDict = {
'http' : "socks5://1.2.3.4:1080",
'https' : "socks5://1.2.3.4:1080"
}
# SOCKS4 proxy for HTTP/HTTPS
proxiesDict = {
'http' : "socks4://1.2.3.4:1080",
'https' : "socks4://1.2.3.4:1080"
}
# HTTP proxy for HTTP/HTTPS
proxiesDict = {
'http' : "1.2.3.4:1080",
'https' : "1.2.3.4:1080"
}
This is better way as it gives you result in a single line:
$this->db->query("Your query")->row()->campaign_id;
Let's illustrate what's happening here:
Python 3.1.2 (r312:79147, Sep 27 2010, 09:45:41)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class Foo:
... def __init__(self, x=[]):
... x.append(1)
...
>>> Foo.__init__.__defaults__
([],)
>>> f = Foo()
>>> Foo.__init__.__defaults__
([1],)
>>> f2 = Foo()
>>> Foo.__init__.__defaults__
([1, 1],)
You can see that the default arguments are stored in a tuple which is an attribute of the function in question. This actually has nothing to do with the class in question and goes for any function. In python 2, the attribute will be func.func_defaults
.
As other posters have pointed out, you probably want to use None
as a sentinel value and give each instance it's own list.
"margin: 0 auto" only centers an element in IE if the parent element has a "text-align: center".
Dart Version
Haversine Algorithm.
import 'dart:math';
class GeoUtils {
static double _degreesToRadians(degrees) {
return degrees * pi / 180;
}
static double distanceInKmBetweenEarthCoordinates(lat1, lon1, lat2, lon2) {
var earthRadiusKm = 6371;
var dLat = _degreesToRadians(lat2-lat1);
var dLon = _degreesToRadians(lon2-lon1);
lat1 = _degreesToRadians(lat1);
lat2 = _degreesToRadians(lat2);
var a = sin(dLat/2) * sin(dLat/2) +
sin(dLon/2) * sin(dLon/2) * cos(lat1) * cos(lat2);
var c = 2 * atan2(sqrt(a), sqrt(1-a));
return earthRadiusKm * c;
}
}
It depends what is the character and what encoding it is in:
An ASCII character in 8-bit ASCII encoding is 8 bits (1 byte), though it can fit in 7 bits.
An ISO-8895-1 character in ISO-8859-1 encoding is 8 bits (1 byte).
A Unicode character in UTF-8 encoding is between 8 bits (1 byte) and 32 bits (4 bytes).
A Unicode character in UTF-16 encoding is between 16 (2 bytes) and 32 bits (4 bytes), though most of the common characters take 16 bits. This is the encoding used by Windows internally.
A Unicode character in UTF-32 encoding is always 32 bits (4 bytes).
An ASCII character in UTF-8 is 8 bits (1 byte), and in UTF-16 - 16 bits.
The additional (non-ASCII) characters in ISO-8895-1 (0xA0-0xFF) would take 16 bits in UTF-8 and UTF-16.
That would mean that there are between 0.03125 and 0.125 characters in a bit.
If you're using Bootstrap 4, try this:
<div class="mx-auto text-center">
<button id="button" name="button" class="btn btn-primary">Press Me!</button>
</div>
If RVM was installed with dedicated ubuntu RVM installer https://github.com/rvm/ubuntu_rvm the path to RVM scripts will be different /usr/share/rvm/scripts/rvm
. So to add it to your .bashrc
run the following command:
echo 'source "/usr/share/rvm/scripts/rvm"' >> ~/.bashrc
Platform independent solution in one line is
Python 2:
python -c "import sys; print sys.executable"
Python 3:
python -c "import sys; print(sys.executable)"
From the man page for time:
/usr/bin/time
You can provide a format string and one of the format options is elapsed time - e.g. %E
/usr/bin/time -f'%E' $CMD
Example:
$ /usr/bin/time -f'%E' ls /tmp/mako/
res.py res.pyc
0:00.01
grep "^-X" file
It will grep and pick all the lines form the file. ^ in the grep"^" indicates a line starting with
1) The most simple way would be using WMPLib
WMPLib.WindowsMediaPlayer Player;
private void PlayFile(String url)
{
Player = new WMPLib.WindowsMediaPlayer();
Player.PlayStateChange += Player_PlayStateChange;
Player.URL = url;
Player.controls.play();
}
private void Player_PlayStateChange(int NewState)
{
if ((WMPLib.WMPPlayState)NewState == WMPLib.WMPPlayState.wmppsStopped)
{
//Actions on stop
}
}
2) Alternatively you can use the open source library NAudio. It can play mp3 files using different methods and actually offers much more than just playing a file.
This is as simple as
using NAudio;
using NAudio.Wave;
IWavePlayer waveOutDevice = new WaveOut();
AudioFileReader audioFileReader = new AudioFileReader("Hadouken! - Ugly.mp3");
waveOutDevice.Init(audioFileReader);
waveOutDevice.Play();
Don't forget to dispose after the stop
waveOutDevice.Stop();
audioFileReader.Dispose();
waveOutDevice.Dispose();
You guys are making this too hard. PowerShell handles this quite elegantly e.g.:
> $str1 = $null
> if ($str1) { 'not empty' } else { 'empty' }
empty
> $str2 = ''
> if ($str2) { 'not empty' } else { 'empty' }
empty
> $str3 = ' '
> if ($str3) { 'not empty' } else { 'empty' }
not empty
> $str4 = 'asdf'
> if ($str4) { 'not empty' } else { 'empty' }
not empty
> if ($str1 -and $str2) { 'neither empty' } else { 'one or both empty' }
one or both empty
> if ($str3 -and $str4) { 'neither empty' } else { 'one or both empty' }
neither empty
before dropping a database, you drop the connection to that database first.
I have found a solution at http://www.kodyaz.com/articles/kill-all-processes-of-a-database.aspx
DECLARE @DatabaseName nvarchar(50)
SET @DatabaseName = N'YOUR_DABASE_NAME'
DECLARE @SQL varchar(max)
SELECT @SQL = COALESCE(@SQL,'') + 'Kill ' + Convert(varchar, SPId) + ';'
FROM MASTER..SysProcesses
WHERE DBId = DB_ID(@DatabaseName) AND SPId <> @@SPId
--SELECT @SQL
EXEC(@SQL)
Use the rawurlencode
function instead.
Yes, you are just making a reference to the object. You can clone the object if it implements Cloneable
.
Check out this wiki article about copying objects.
'<option value="' + col + '"'+ (col === "screwdriver" ? " selected " : "") +'>Very roomy</option>';
I'd say
chunks = [data[x:x+100] for x in range(0, len(data), 100)]
If you are using python 2.x instead of 3.x, you can be more memory-efficient by using xrange()
, changing the above code to:
chunks = [data[x:x+100] for x in xrange(0, len(data), 100)]
Here is a special case if you want the first entry (or close to it) in an OrderedDict, without creating a list. (This has been updated to Python 3):
>>> from collections import OrderedDict
>>>
>>> d = OrderedDict()
>>> d["foo"] = "one"
>>> d["bar"] = "two"
>>> d["baz"] = "three"
>>> next(iter(d.items()))
('foo', 'one')
>>> next(iter(d.values()))
'one'
(The first time you say "next()", it really means "first.")
In my informal test, next(iter(d.items()))
with a small OrderedDict is only a tiny bit faster than items()[0]
. With an OrderedDict of 10,000 entries, next(iter(d.items()))
was about 200 times faster than items()[0]
.
BUT if you save the items() list once and then use the list a lot, that could be faster. Or if you repeatedly { create an items() iterator and step through it to to the position you want }, that could be slower.
The common practice is using @class in header files (but you still need to #import the superclass), and #import in implementation files. This will avoid any circular inclusions, and it just works.
in addition to a watchpoint nested inside a breakpoint you can also set a single breakpoint on the 'filename:line_number' and use a condition. I find it sometimes easier.
(gdb) break iter.c:6 if i == 5
Breakpoint 2 at 0x4004dc: file iter.c, line 6.
(gdb) c
Continuing.
0
1
2
3
4
Breakpoint 2, main () at iter.c:6
6 printf("%d\n", i);
If like me you get tired of line numbers changing, you can add a label then set the breakpoint on the label like so:
#include <stdio.h>
main()
{
int i = 0;
for(i=0;i<7;++i) {
looping:
printf("%d\n", i);
}
return 0;
}
(gdb) break main:looping if i == 5
As simply as:
if (numbers.isEmpty()) {...}
Note that a quick look at the documentation would have given you that information.
I use this to get the Parent, similarly for child
$( this ).children( 'li.target' ).css("border", "3px double red");
Good Luck
I had the same problem. Initially I had setup Eclipse CDT with Cygwing & was working smoothly. One day there happened a problem due to which I had to reset windows. After that when I opened Eclipse I started facing the issue described above. This is how I solved it.
First I searched that in the error the PATH variable value is same as the PATH variable of windows ( just by manual comparison of both two values ). I found that to be same. Now I realized that it is a PATH problem.
Then started looking for Cygwin whether it is there or not? It was there. I located & found that it exists in
C:\cygwin64\bin>
C:\cygwin64\bin>dir ma*
Volume in drive C is Windows8_OS
Volume Serial Number is 042E-11B5
Directory of C:\cygwin64\bin
16-05-2015 18:34 10,259 mag.exe
13-08-2013 04:57 384 mailmail
11-04-2015 02:56 4,252 make-emacs-shortcut
15-02-2015 23:25 194,579 make.exe
04-05-2015 21:36 40,979 makeconv.exe
29-07-2013 11:57 29,203 makedepend.exe
16-05-2015 18:34 79,891 makeindex.exe
16-05-2015 18:34 34,323 makejvf.exe
07-05-2015 03:04 310 mako-render
18-04-2015 02:07 92,179 man.exe
18-04-2015 02:07 113,683 mandb.exe
13-08-2013 04:57 286 manhole
18-04-2015 02:07 29,203 manpath.exe
24-10-2014 13:31 274,461 mate-terminal.exe
24-10-2014 13:31 1,366 mate-terminal.wrapper
15 File(s) 905,358 bytes
0 Dir(s) 373,012,271,104 bytes free
C:\cygwin64\bin>
Then I simply went ahead & updated the PATH variable to include this path & restarted eclipse.
The code compiles & debugging (GDB ) is working nicely.
Hope this helps.
Here's an example, because an example is often clearer than a long explanation. Suppose foo
is a variable of type long
. The following operation is not an atomic operation:
foo = 65465498L;
Indeed, the variable is written using two separate operations: one that writes the first 32 bits, and a second one which writes the last 32 bits. That means that another thread might read the value of foo
, and see the intermediate state.
Making the operation atomic consists in using synchronization mechanisms in order to make sure that the operation is seen, from any other thread, as a single, atomic (i.e. not splittable in parts), operation. That means that any other thread, once the operation is made atomic, will either see the value of foo
before the assignment, or after the assignment. But never the intermediate value.
A simple way of doing this is to make the variable volatile:
private volatile long foo;
Or to synchronize every access to the variable:
public synchronized void setFoo(long value) {
this.foo = value;
}
public synchronized long getFoo() {
return this.foo;
}
// no other use of foo outside of these two methods, unless also synchronized
Or to replace it with an AtomicLong
:
private AtomicLong foo;
You can use the keyword IDENTITY
as the data type to the column along with PRIMARY KEY
constraint when creating the table.
ex:
StudentNumber IDENTITY(1,1) PRIMARY KEY
In here the first '1' means the starting value and the second '1' is the incrementing value.
In pre-commit/post-checkout an option would be to use "mtree" (FreeBSD), or "fmtree" (Ubuntu) utility which "compares a file hierarchy against a specification, creates a specification for a file hierarchy, or modifies a specification."
The default set are flags, gid, link, mode, nlink, size, time, type, and uid. This can be fitted to the specific purpose with -k switch.
Regularization can help. For a classifier, there is a good case for activity regularization, whether it is binary or a multi-class classifier. For a regressor, kernel regularization might be more appropriate.
Using sed
:
sed -n -e '/^abc$/,/^mno$/{ /^abc$/d; /^mno$/d; p; }'
The -n
option means do not print by default.
The pattern looks for lines containing just abc
to just mno
, and then executes the actions in the { ... }
. The first action deletes the abc
line; the second the mno
line; and the p
prints the remaining lines. You can relax the regexes as required. Any lines outside the range of abc
..mno
are simply not printed.
Use NGX Cookie Service
Inastall this package: npm install ngx-cookie-service --save
Add the cookie service to your app.module.ts as a provider:
import { CookieService } from 'ngx-cookie-service';
@NgModule({
declarations: [ AppComponent ],
imports: [ BrowserModule, ... ],
providers: [ CookieService ],
bootstrap: [ AppComponent ]
})
Then call in your component:
import { CookieService } from 'ngx-cookie-service';
constructor( private cookieService: CookieService ) { }
ngOnInit(): void {
this.cookieService.set( 'name', 'Test Cookie' ); // To Set Cookie
this.cookieValue = this.cookieService.get('name'); // To Get Cookie
}
That's it!
git pull origin master
this will sync your master to the central repo and if new branches are pushed to the central repo it will also update your clone copy.
You don't have to add a .
in getElementsByClassName
, i.e.
var multibutton = angular.element(element.getElementsByClassName("multi-files"));
However, when using angular.element
, you do have to use jquery style selectors:
angular.element('.multi-files');
should do the trick.
Also, from this documentation "If jQuery is available, angular.element is an alias for the jQuery function. If jQuery is not available, angular.element delegates to Angular's built-in subset of jQuery, called "jQuery lite" or "jqLite.""
Unfortunately, re.escape()
is not suited for the replacement string:
>>> re.sub('a', re.escape('_'), 'aa')
'\\_\\_'
A solution is to put the replacement in a lambda:
>>> re.sub('a', lambda _: '_', 'aa')
'__'
because the return value of the lambda is treated by re.sub()
as a literal string.
It maybe is not the best way to do it. But the only I found to get the Absolute path is to calculate how many times the syntax .. was in the string and then use the function gotoparent as many times that syntax comes in the hyperlink adress. (in my case, my field is a hyperlink address. Ps: This code requires the reference to microsoft scripting runtime
Function AbsolutePath(strRelativePath As String, strCurrentFileName As String) As String
Dim fso As Object
Dim strCurrentProjectpath As String
Dim strGoToParentFolder As String
Dim strOrigineFolder As String
Dim strPath As String
Dim lngParentFolder As Long
''Pour retrouver le répertoire parent
Set fso = CreateObject("Scripting.FileSystemObject")
'' détermine le répertire du projet actif
strCurrentProjectpath = CurrentProject.Path
'' détermine le nom du répertoire dans lequel le fichier d'origine se trouve
strOrigineFolder = Replace(Replace(Replace(strRelativePath, strCurrentFileName, ""), "..", ""), "\", "")
''Extraction du chemin relatif (ex. ..\..\..)
strGoToParentFolder = Replace(Replace(strRelativePath, strOrigineFolder, ""), strCurrentFileName, "")
''retourne le nombre de fois qu'il faut remonter au répertoire parent
lngParentsFolder = Len(Replace(strGoToParentFolder, "\", "")) / 2
''détermine la valeur d'origine du répertoire du début
strPath = strCurrentProjectpath
Vérifie s 'il faut aller au répertoire parent
If lngParentsFolder < 1 Then
'si non, alors répertoire parent et répertoire d'origine du fichier
strPath = strCurrentProjectpath & "\" & strOrigineFolder
Else
''si oui, nous faisons la boucle pour retourner au répertoire d'origine
For i = 1 To lngParentsFolder
strPath = fso.GetParentFolderName(strPath)
Next i
End If
''retournons le répertoire parent du fichier et son répertoire d'origine [le OUTPUT]
AbsolutePath = strPath & strOrigineFolder & "\"
End Function
Previous answers don't account for the fact that you've overloaded the equals operator and are using that to test for the sought element. In that case, your code would look like this:
list.Find(x => x == objectToFind);
Or, if you don't like lambda syntax, and have overriden object.Equals(object) or have implemented IEquatable<T>, you could do this:
list.Find(objectToFind.Equals);
Another option is:
<script language="JavaScript" type="text/javascript">
document.getElementById("my_date:box").value = ( Stamp.getDate()+"/"+(Stamp.getMonth() + 1)+"/"+(Stamp.getYear()) );
</script>
$.ajax({
url: '//freegeoip.net/json/',
type: 'POST',
dataType: 'jsonp',
success: function(location) {
alert(location.ip);
}
});
This will work https too
I think this will cover any possible scenario for what is in O10:
=IF(ISBLANK(O10),"",IF(O10<TODAY(),IF(TODAY()-O10<>1,CONCATENATE("Due in ",TEXT(TODAY()-O10,"d")," days"),CONCATENATE("Due in ",TEXT(TODAY()-O10,"d")," day")),IF(O10=TODAY(),"Due Today","Overdue")))
For Dates that are before Today, it will tell you how many days the item is due in. If O10 = Today then it will say "Due Today". Anything past Today and it will read overdue. Lastly, if it is blank, the cell will also appear blank. Let me know what you think!
import socket
from threading import *
serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host = "192.168.1.3"
port = 8000
print (host)
print (port)
serversocket.bind((host, port))
class client(Thread):
def __init__(self, socket, address):
Thread.__init__(self)
self.sock = socket
self.addr = address
self.start()
def run(self):
while 1:
print('Client sent:', self.sock.recv(1024).decode())
self.sock.send(b'Oi you sent something to me')
serversocket.listen(5)
print ('server started and listening')
while 1:
clientsocket, address = serversocket.accept()
client(clientsocket, address)
This is a very VERY simple design for how you could solve it.
First of all, you need to either accept the client (server side) before going into your while 1
loop because in every loop you accept a new client, or you do as i describe, you toss the client into a separate thread which you handle on his own from now on.
This was the first disappointing thing about Swift which I noticed. Almost all scripting languages allow for multi-line strings.
C++11 added raw string literals which allow you to define your own terminator
C# has its @literals for multi-line strings.
Even plain C and thus old-fashioned C++ and Objective-C allow for concatentation simply by putting multiple literals adjacent, so quotes are collapsed. Whitespace doesn't count when you do that so you can put them on different lines (but need to add your own newlines):
const char* text = "This is some text\n"
"over multiple lines";
As swift doesn't know you have put your text over multiple lines, I have to fix connor's sample, similarly to my C sample, explictly stating the newline:
var text:String = "This is some text \n" +
"over multiple lines"
You don't need to apply to_date()
to sysdate
. It is already there:
select 1
from dual
WHERE sysdate BETWEEN TO_DATE('28/02/2014', 'DD/MM/YYYY') AND TO_DATE('20/06/2014', 'DD/MM/YYYY');
If you are concerned about the time component on the date, then use trunc()
:
select 1
from dual
WHERE trunc(sysdate) BETWEEN TO_DATE('28/02/2014', 'DD/MM/YYYY') AND
TO_DATE('20/06/2014', 'DD/MM/YYYY');
The answere by Patrick and by Jesse Chisholm made me do the following:
#define QUEEN 'Q'
#define JACK 'J'
#define CHECK_QUEEN(s) (s==QUEEN)
#define CHECK_JACK(s) (s==JACK)
#define USER 'Q'
[... later on in code ...]
#if CHECK_QUEEN(USER)
compile_queen_func();
#elif CHECK_JACK(USER)
compile_jack_func();
#elif
#error "unknown user"
#endif
Instead of #define USER 'Q'
#define USER QUEEN
should also work but was not tested also works and might be easier to handle.
EDIT: According to the comment of @Jean-François Fabre I adapted my answer.
Be careful if you use fat arrow functions as you will get undefined for this.id Wasted 10 minutes today wondering what the hell was going on
AJAX file uploads are now possible by passing a FormData
object to the data
property of the $.ajax
request.
As the OP specifically asked for a jQuery implementation, here you go:
<form id="upload" enctype="multipart/form-data" action="@Url.Action("JsonSave", "Survey")" method="POST">
<input type="file" name="fileUpload" id="fileUpload" size="23" /><br />
<button>Upload!</button>
</form>
$('#upload').submit(function(e) {
e.preventDefault(); // stop the standard form submission
$.ajax({
url: this.action,
type: this.method,
data: new FormData(this),
cache: false,
contentType: false,
processData: false,
success: function (data) {
console.log(data.UploadedFileCount + ' file(s) uploaded successfully');
},
error: function(xhr, error, status) {
console.log(error, status);
}
});
});
public JsonResult Survey()
{
for (int i = 0; i < Request.Files.Count; i++)
{
var file = Request.Files[i];
// save file as required here...
}
return Json(new { UploadedFileCount = Request.Files.Count });
}
More information on FormData at MDN
The below seems to work for me.
using System;
using System.Reflection;
public class ReflectStatic
{
private static int SomeNumber {get; set;}
public static object SomeReference {get; set;}
static ReflectStatic()
{
SomeReference = new object();
Console.WriteLine(SomeReference.GetHashCode());
}
}
public class Program
{
public static void Main()
{
var rs = new ReflectStatic();
var pi = rs.GetType().GetProperty("SomeReference", BindingFlags.Static | BindingFlags.Public);
if(pi == null) { Console.WriteLine("Null!"); Environment.Exit(0);}
Console.WriteLine(pi.GetValue(rs, null).GetHashCode());
}
}
Every OS version has a different way of doing it. Take a look at the sms-link library
First, Start MongoDB:
sudo service mongod start
Then, Run:
mongo
You can try like:
var path="~/Image/test.png"; System.Web.Hosting.HostingEnvironment.MapPath( @ + path)
If you don't want to have to specify the version every time you use pip:
Install pip:
$ curl https://raw.github.com/pypa/pip/master/contrib/get-pip.py | python3
and export the path:
$ export PATH=/Library/Frameworks/Python.framework/Versions/<version number>/bin:$PATH
As everyone has said, you definitely need the key. There's no workaround for that. However, you might be surprised at how good the data recovery software can be, and how long the key may linger on your systems -- it's a tiny, tiny file, after all, and may not yet be overwritten. I was pleasantly surprised on both counts.
I develop on an OSX machine. I unintentionally deleted my app key around 6 weeks ago. When I tried to update, I realized my schoolboy error. I tried all the recovery tools I could find for OSX, but none could find the file -- not because it wasn't there, but because these tools are optimized to find the sorts of files the majority of users want back (photos, Word docs, etc.). They're definitely not looking for a 1KB file with an unusual file signature.
Now this next part is going to sound like a plug, but it isn't -- I don't have any connection to the developers:
The only recover tool I found that worked was one called Data Rescue by Prosoft Engineering (which I believe works for other files systems as well -- not just HFS+). It worked because it has a feature which allows you to train it to look for any file type -- even an Android key. You give it several examples. (I generated a few keys, filling in the data fields in as like manner as possible to the original). You then tell it to "deep search". If you're lucky, you'll get your key back in the "custom files" section.
For me, it was a life saver.
It's $100 to purchase, so it's not cheap, but it's worth it if you've got a mass of users and no further means of feeding them updates.
I believe they allow you 1 free file recovery in demo mode, but, unfortunately, in my case, I had several keys and could not tell which one was the one I needed without recovering them all (file names are not preserved on HFS+).
Try it first in demo mode, you may get lucky and be able to recover the key without paying anything.
May this message help someone. It's a sickening feeling, I know, but there may be relief.
If you are writing portable code, the answer is "you can't tell", the good news is that you don't need to. Your protocol should involve writing the size as (eg) "8 octets, big-endian format" (Ideally with a check that the actual size fits in 8 octets.)
Change the cell type to Markdown in the menu bar, from Code
to Markdown
. Currently in Notebook 4.x
, the keyboard shortcut for such an action is: Esc
(for command mode), then m
(for markdown).
Most likely JDK configuration is not valid, try to remove and add the JDK again as I've described in the related question here.
The inclusion of your comparison class (or more specifically the AsEnumerable
call you needed to use to get it to work) meant that the sorting logic went from being based on the database server to being on the database client (your application). This meant that your client now needs to retrieve and then process a larger number of records, which will always be less efficient that performing the lookup on the database where the approprate indexes can be used.
You should try to develop a where clause that satisfies your requirements instead, see Using an IEqualityComparer with a LINQ to Entities Except clause for more details.
If you want an argument that might appeal to a boss: Think about what a URL is. URLs are public. People copy and paste them. They share them, they put them on advertisements. Nothing prevents someone (knowingly or not) from mailing that URL around for other people to use. If your API key is in that URL, everybody has it.
Use event.source.window.postMessage
to send back to sender.
From Iframe
window.top.postMessage('I am Iframe', '*')
window.onmessage = (event) => {
if (event.data === 'GOT_YOU_IFRAME') {
console.log('Parent received successfully.')
}
}
Then from parent say back.
window.onmessage = (event) => {
event.source.window.postMessage('GOT_YOU_IFRAME', '*')
}
Simply You need to pass resizeMode like this to fit in your image in containing view
<Image style={styles.imageStyle} resizeMode={'cover'} source={item.image}/>
const style = StyleSheet.create({
imageStyle: {
alignSelf: 'center',
height:'100%',
width:'100%'
},]
})
The following code does what is required
function doTest() {
SpreadsheetApp.getActiveSheet().getRange('F2').setValue('Hello');
}
I found it's simple to do this via the svn cat
command so that you don't even have to specify a revision.
svn cat mydir/myfile > mydir/myfile
This probably won't role back the inode (metadata) data such as timestamps.
you call function on page load time but not call on button event, you will need to call function onclick
event, you may add event inline element style or event bining
function Choice(elem) {_x000D_
var box = document.getElementById("box");_x000D_
if (elem.id == "no") {_x000D_
box.style.backgroundColor = "red";_x000D_
} else if (elem.id == "yes") {_x000D_
box.style.backgroundColor = "green";_x000D_
} else {_x000D_
box.style.backgroundColor = "purple";_x000D_
};_x000D_
};
_x000D_
<div id="box">dd</div>_x000D_
<button id="yes" onclick="Choice(this);">yes</button>_x000D_
<button id="no" onclick="Choice(this);">no</button>_x000D_
<button id="other" onclick="Choice(this);">other</button>
_x000D_
or event binding,
window.onload = function() {_x000D_
var box = document.getElementById("box");_x000D_
document.getElementById("yes").onclick = function() {_x000D_
box.style.backgroundColor = "red";_x000D_
}_x000D_
document.getElementById("no").onclick = function() {_x000D_
box.style.backgroundColor = "green";_x000D_
}_x000D_
}
_x000D_
<div id="box">dd</div>_x000D_
<button id="yes">yes</button>_x000D_
<button id="no">no</button>
_x000D_
Also check out Darek Mihocka's Emulators.com for great advice on instruction-level optimization for JITs, and many other goodies on building efficient emulators.
Using just File.Create
will leave the file open, which probably isn't what you want.
You could use:
using (File.Create(filename)) ;
That looks slightly odd, mind you. You could use braces instead:
using (File.Create(filename)) {}
Or just call Dispose
directly:
File.Create(filename).Dispose();
Either way, if you're going to use this in more than one place you should probably consider wrapping it in a helper method, e.g.
public static void CreateEmptyFile(string filename)
{
File.Create(filename).Dispose();
}
Note that calling Dispose
directly instead of using a using
statement doesn't really make much difference here as far as I can tell - the only way it could make a difference is if the thread were aborted between the call to File.Create
and the call to Dispose
. If that race condition exists, I suspect it would also exist in the using
version, if the thread were aborted at the very end of the File.Create
method, just before the value was returned...
When setting a variable make sure you have no spaces before and/or after the =
sign. I literally spent an hour trying to figure this out, trying all kinds of solutions! This is not cool.
Correct:
WTFF=`echo "stuff"`
echo "Example: $WTFF"
Will Fail with error "stuff: not found" or similar
WTFF= `echo "stuff"`
echo "Example: $WTFF"
Some of it is possible, specifically accessing subtotals:
"In Excel 2010+, you can right-click on the values and select Show Values As –> % of Parent Row Total." (or % of Parent Column Total)
Source: http://datapigtechnologies.com/blog/index.php/excel-2010-pivottable-subtotals/
Look for an open listener on port 1433 (the default port). If you get any response after creating a tcp connection there, the server's probably up.
[chr(i) for i in range(ord('a'),ord('z')+1)]
If you put this commands into shell block:
false
true
your build will be marked as fail ( at least 1 non-zero exit code ), so you can add (set +e) to ignore it:
set +e
false
true
will not fail. However, this will fail even with the (set +e) in place:
set +e
false
because the last shell command must exit with 0.
I'd just use zip
:
In [1]: from pandas import *
In [2]: def calculate(x):
...: return x*2, x*3
...:
In [3]: df = DataFrame({'a': [1,2,3], 'b': [2,3,4]})
In [4]: df
Out[4]:
a b
0 1 2
1 2 3
2 3 4
In [5]: df["A1"], df["A2"] = zip(*df["a"].map(calculate))
In [6]: df
Out[6]:
a b A1 A2
0 1 2 2 3
1 2 3 4 6
2 3 4 6 9
The best you can do is import the dynamic library inside a bridging header:
#import <sqlite3.h>
to the topYou will then be able to access all of the c methods like sqlite3_open
from your swift code.
However, you may just want to use FMDB and import that through the bridging header as that is a more object oriented wrapper of sqlite. Dealing with C pointers and structs will be cumbersome in Swift.
I think you can use the "engines" field:
{ "engines" : { "node" : ">=0.12" } }
As you're saying your code definitely won't work with any lower versions, you probably want the "engineStrict" flag too:
{ "engineStrict" : true }
Documentation for the package.json file can be found on the npmjs site
Update
engineStrict
is now deprecated, so this will only give a warning. It's now down to the user to run npm config set engine-strict true
if they want this.
Update 2
As ben pointed out below, creating a .npmrc
file at the root of your project (the same level as your package.json file) with the text engine-strict=true
will force an error during installation if the Node version is not compatible.
You need to use padding on the list item layout so space is added on the edges of the item (just increasing the font size won't do that).
<?xml version="1.0" encoding="utf-8"?>
<TextView android:id="@+id/text1"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="8dp" />
Check if folder .ssh is on your system
If not, then
Paste in the terminal
Remove existing SSH keys
rm ~/.ssh/github_rsa.pub
Create New
Create new SSH key ? ssh-keygen -t rsa -b 4096 -C "[email protected]"
The public key has been saved in "/Users/administrator/.ssh/id_ed25519.pub."
Open the public key saved path.
Copy the SSH key ? GitLab Account ? Setting ? SSH Key ? Add key
Test again from the terminal ? ssh -T [email protected]
RewriteEngine on
RewriteCond %{HTTP_REFERER} !^http://(www\.)?localhost.*$ [NC]
RewriteCond %{REQUEST_URI} !^http://(www\.)?localhost/(.*)\.(gif|jpg|png|jpeg|mp4)$ [NC]
RewriteRule . - [F]
One possible thing you could do is use the Dictionary object straight out of the box and then just extend it with your own modifications:
public class TokenTree : Dictionary<string, string>
{
public IDictionary<string, string> SubPairs;
}
This gives you the advantage of not having to enforce the rules of IDictionary for your Key (e.g., key uniqueness, etc).
And yup you got the concept of the constructor right :)
You want to look at the patch() function, and sneak in points for the start and end of the horizontal line:
x = 0:.1:2*pi;
y = sin(x)+rand(size(x))/2;
x2 = [0 x 2*pi];
y2 = [.1 y .1];
patch(x2, y2, [.8 .8 .1]);
If you only want the filled in area for a part of the data, you'll need to truncate the x and y vectors to only include the points you need.
Here is a very simple way to do it by hand. You could also use the <algorithm>
, as Peter suggests.
#include <iostream>
int find(int arr[], int len, int seek)
{
for (int i = 0; i < len; ++i)
{
if (arr[i] == seek) return i;
}
return -1;
}
int main()
{
int arr[ 5 ] = { 4, 1, 3, 2, 6 };
int x = find(arr,5,3);
std::cout << x << std::endl;
}
Remember that Constructor of an object is called immediately after the memory is allocated for that object and whereas the destructor is called just before deallocating the memory of that object.
In Swift 3 there are some changes. Here is an extension to UIImage:
public extension UIImage {
public func resize(height: CGFloat) -> UIImage? {
let scale = height / self.size.height
let width = self.size.width * scale
UIGraphicsBeginImageContext(CGSize(width: width, height: height))
self.draw(in: CGRect(x:0, y:0, width:width, height:height))
let resultImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return resultImage
}
}
Here's my function using Oscar Jara's function as a model.
public static string getBetween(string strSource, string strStart, string strEnd) {
const int kNotFound = -1;
var startIdx = strSource.IndexOf(strStart);
if (startIdx != kNotFound) {
startIdx += strStart.Length;
var endIdx = strSource.IndexOf(strEnd, startIdx);
if (endIdx > startIdx) {
return strSource.Substring(startIdx, endIdx - startIdx);
}
}
return String.Empty;
}
This version does at most two searches of the text. It avoids an exception thrown by Oscar's version when searching for an end string that only occurs before the start string, i.e., getBetween(text, "my", "and");
.
Usage is the same:
string text = "This is an example string and my data is here";
string data = getBetween(text, "my", "is");
Solution using just POST - no $_SESSION
page1.php
<form action="page2.php" method="post">
<textarea name="textarea1" id="textarea1"></textarea><br />
<input type="submit" value="submit" />
</form>
page2.php
<?php
// this page outputs the contents of the textarea if posted
$textarea1 = ""; // set var to avoid errors
if(isset($_POST['textarea1'])){
$textarea1 = $_POST['textarea1']
}
?>
<textarea><?php echo $textarea1;?></textarea>
Solution using $_SESSION and POST
page1.php
<?php
session_start(); // needs to be before anything else on page to use $_SESSION
$textarea1 = "";
if(isset($_POST['textarea1'])){
$_SESSION['textarea1'] = $_POST['textarea1'];
}
?>
<form action="page1.php" method="post">
<textarea name="textarea1" id="textarea1"></textarea><br />
<input type="submit" value="submit" />
</form>
<br /><br />
<a href="page2.php">Go to page2</a>
page2.php
<?php
session_start(); // needs to be before anything else on page to use $_SESSION
// this page outputs the textarea1 from the session IF it exists
$textarea1 = ""; // set var to avoid errors
if(isset($_SESSION['textarea1'])){
$textarea1 = $_SESSION['textarea1']
}
?>
<textarea><?php echo $textarea1;?></textarea>
WARNING!!! - This contains no validation!!!