You can catch it like any other exception:
try {
foo();
}
catch (const std::bad_alloc&) {
return -1;
}
Quite what you can usefully do from this point is up to you, but it's definitely feasible technically.
In general you cannot, and should not try, to respond to this error. bad_alloc
indicates that a resource cannot be allocated because not enough memory is available. In most scenarios your program cannot hope to cope with that, and terminating soon is the only meaningful behaviour.
Worse, modern operating systems often over-allocate: on such systems, malloc
and new
can return a valid pointer even if there is not enough free memory left – std::bad_alloc
will never be thrown, or is at least not a reliable sign of memory exhaustion. Instead, attempts to access the allocated memory will then result in a segmentation fault, which is not catchable (you can handle the segmentation fault signal, but you cannot resume the program afterwards).
The only thing you could do when catching std::bad_alloc
is to perhaps log the error, and try to ensure a safe program termination by freeing outstanding resources (but this is done automatically in the normal course of stack unwinding after the error gets thrown if the program uses RAII appropriately).
In certain cases, the program may attempt to free some memory and try again, or use secondary memory (= disk) instead of RAM but these opportunities only exist in very specific scenarios with strict conditions:
It’s exceedingly rare that applications have control over point 1 — userspace applications never do, it’s a system-wide setting that requires root permissions to change.1
OK, so let’s assume you’ve fixed point 1. What you can now do is for instance use a LRU cache for some of your data (probably some particularly large business objects that can be regenerated or reloaded on demand). Next, you need to put the actual logic that may fail into a function that supports retry — in other words, if it gets aborted, you can just relaunch it:
lru_cache<widget> widget_cache;
double perform_operation(int widget_id) {
std::optional<widget> maybe_widget = widget_cache.find_by_id(widget_id);
if (not maybe_widget) {
maybe_widget = widget_cache.store(widget_id, load_widget_from_disk(widget_id));
}
return maybe_widget->frobnicate();
}
…
for (int num_attempts = 0; num_attempts < MAX_NUM_ATTEMPTS; ++num_attempts) {
try {
return perform_operation(widget_id);
} catch (std::bad_alloc const&) {
if (widget_cache.empty()) throw; // memory error elsewhere.
widget_cache.remove_oldest();
}
}
// Handle too many failed attempts here.
But even here, using std::set_new_handler
instead of handling std::bad_alloc
provides the same benefit and would be much simpler.
1 If you’re creating an application that does control point 1, and you’re reading this answer, please shoot me an email, I’m genuinely curious about your circumstances.
new
in c++?The usual notion is that if new
operator cannot allocate dynamic memory of the requested size, then it should throw an exception of type std::bad_alloc
.
However, something more happens even before a bad_alloc
exception is thrown:
C++03 Section 3.7.4.1.3: says
An allocation function that fails to allocate storage can invoke the currently installed new_handler(18.4.2.2), if any. [Note: A program-supplied allocation function can obtain the address of the currently installed new_handler using the set_new_handler function (18.4.2.3).] If an allocation function declared with an empty exception-specification (15.4), throw(), fails to allocate storage, it shall return a null pointer. Any other allocation function that fails to allocate storage shall only indicate failure by throw-ing an exception of class std::bad_alloc (18.4.2.1) or a class derived from std::bad_alloc.
Consider the following code sample:
#include <iostream>
#include <cstdlib>
// function to call if operator new can't allocate enough memory or error arises
void outOfMemHandler()
{
std::cerr << "Unable to satisfy request for memory\n";
std::abort();
}
int main()
{
//set the new_handler
std::set_new_handler(outOfMemHandler);
//Request huge memory size, that will cause ::operator new to fail
int *pBigDataArray = new int[100000000L];
return 0;
}
In the above example, operator new
(most likely) will be unable to allocate space for 100,000,000 integers, and the function outOfMemHandler()
will be called, and the program will abort after issuing an error message.
As seen here the default behavior of new
operator when unable to fulfill a memory request, is to call the new-handler
function repeatedly until it can find enough memory or there is no more new handlers. In the above example, unless we call std::abort()
, outOfMemHandler()
would be called repeatedly. Therefore, the handler should either ensure that the next allocation succeeds, or register another handler, or register no handler, or not return (i.e. terminate the program). If there is no new handler and the allocation fails, the operator will throw an exception.
new_handler
and set_new_handler
?new_handler
is a typedef for a pointer to a function that takes and returns nothing, and set_new_handler
is a function that takes and returns a new_handler
.
Something like:
typedef void (*new_handler)();
new_handler set_new_handler(new_handler p) throw();
set_new_handler's parameter is a pointer to the function operator new
should call if it can't allocate the requested memory. Its return value is a pointer to the previously registered handler function, or null if there was no previous handler.
Given the behavior of new
a well designed user program should handle out of memory conditions by providing a proper new_handler
which does one of the following:
Make more memory available: This may allow the next memory allocation attempt inside operator new's loop to succeed. One way to implement this is to allocate a large block of memory at program start-up, then release it for use in the program the first time the new-handler is invoked.
Install a different new-handler: If the current new-handler can't make any more memory available, and of there is another new-handler that can, then the current new-handler can install the other new-handler in its place (by calling set_new_handler
). The next time operator new calls the new-handler function, it will get the one most recently installed.
(A variation on this theme is for a new-handler to modify its own behavior, so the next time it's invoked, it does something different. One way to achieve this is to have the new-handler modify static, namespace-specific, or global data that affects the new-handler's behavior.)
Uninstall the new-handler: This is done by passing a null pointer to set_new_handler
. With no new-handler installed, operator new
will throw an exception ((convertible to) std::bad_alloc
) when memory allocation is unsuccessful.
Throw an exception convertible to std::bad_alloc
. Such exceptions are not be caught by operator new
, but will propagate to the site originating the request for memory.
Not return: By calling abort
or exit
.
The Group Policy editor is not mentioned in the post above. I have used GPedit quite a few times to perform a task on bootup or shutdown. Here are Microsoft's instructions on how to access and maneuver GPedit.
How To Use the Group Policy Editor to Manage Local Computer Policy in Windows XP
Now there is the pandas_profiling
package, which is a more complete alternative to df.describe()
.
If your pandas dataframe is df
, the below will return a complete analysis including some warnings about missing values, skewness, etc. It presents histograms and correlation plots as well.
import pandas_profiling
pandas_profiling.ProfileReport(df)
See the example notebook detailing the usage.
Basically you can’t put an icon inside of a textInput but you can fake it by wrapping it inside a view and setting up some simple styling rules.
Here's how it works:
Code:
<View style={styles.passwordContainer}>
<TextInput
style={styles.inputStyle}
autoCorrect={false}
secureTextEntry
placeholder="Password"
value={this.state.password}
onChangeText={this.onPasswordEntry}
/>
<Icon
name='what_ever_icon_you_want'
color='#000'
size={14}
/>
</View>
Style:
passwordContainer: {
flexDirection: 'row',
borderBottomWidth: 1,
borderColor: '#000',
paddingBottom: 10,
},
inputStyle: {
flex: 1,
},
(Note: the icon is underneath the TextInput so it appears on the far right, if it was above TextInput it would appear on the left.)
If you keep the algorithm meaningful in any way, O(n!)
is the worst upper bound you can achieve.
Since checking each possibility for a permutations of a set to be sorted will take n!
steps, you can't get any worse than that.
If you're doing more steps than that then the algorithm has no real useful purpose. Not to mention the following simple sorting algorithm with O(infinity)
:
list = someList
while (list not sorted):
doNothing
Bootstrap 3 with DataTables Example: Bootstrap Docs & DataTables Docs
$(document).ready(function() {
$('#example').DataTable();
});
_x000D_
<link href=https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css rel=stylesheet><link href=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/css/dataTables.bootstrap.min.css rel=stylesheet><div class=container><h1>Bootstrap 3 DataTables</h1><table cellspacing=0 class="table table-bordered table-hover table-striped"id=example width=100%><thead><tr><th>Name<th>Position<th>Office<th>Salary<tbody><tr><td>Tiger Nixon<td>System Architect<td>Edinburgh<td>$320,800<tr><td>Garrett Winters<td>Accountant<td>Tokyo<td>$170,750<tr><td>Ashton Cox<td>Junior Technical Author<td>San Francisco<td>$86,000<tr><td>Cedric Kelly<td>Senior Javascript Developer<td>Edinburgh<td>$433,060<tr><td>Airi Satou<td>Accountant<td>Tokyo<td>$162,700<tr><td>Brielle Williamson<td>Integration Specialist<td>New York<td>$372,000<tr><td>Herrod Chandler<td>Sales Assistant<td>San Francisco<td>$137,500<tr><td>Rhona Davidson<td>Integration Specialist<td>Tokyo<td>$327,900<tr><td>Colleen Hurst<td>Javascript Developer<td>San Francisco<td>$205,500<tr><td>Sonya Frost<td>Software Engineer<td>Edinburgh<td>$103,600<tr><td>Jena Gaines<td>Office Manager<td>London<td>$90,560<tr><td>Quinn Flynn<td>Support Lead<td>Edinburgh<td>$342,000<tr><td>Charde Marshall<td>Regional Director<td>San Francisco<td>$470,600<tr><td>Haley Kennedy<td>Senior Marketing Designer<td>London<td>$313,500<tr><td>Tatyana Fitzpatrick<td>Regional Director<td>London<td>$385,750<tr><td>Michael Silva<td>Marketing Designer<td>London<td>$198,500<tr><td>Paul Byrd<td>Chief Financial Officer (CFO)<td>New York<td>$725,000<tr><td>Gloria Little<td>Systems Administrator<td>New York<td>$237,500<tr><td>Bradley Greer<td>Software Engineer<td>London<td>$132,000<tr><td>Dai Rios<td>Personnel Lead<td>Edinburgh<td>$217,500<tr><td>Jenette Caldwell<td>Development Lead<td>New York<td>$345,000<tr><td>Yuri Berry<td>Chief Marketing Officer (CMO)<td>New York<td>$675,000<tr><td>Caesar Vance<td>Pre-Sales Support<td>New York<td>$106,450<tr><td>Doris Wilder<td>Sales Assistant<td>Sidney<td>$85,600<tr><td>Angelica Ramos<td>Chief Executive Officer (CEO)<td>London<td>$1,200,000<tr><td>Gavin Joyce<td>Developer<td>Edinburgh<td>$92,575<tr><td>Jennifer Chang<td>Regional Director<td>Singapore<td>$357,650<tr><td>Brenden Wagner<td>Software Engineer<td>San Francisco<td>$206,850<tr><td>Fiona Green<td>Chief Operating Officer (COO)<td>San Francisco<td>$850,000<tr><td>Shou Itou<td>Regional Marketing<td>Tokyo<td>$163,000<tr><td>Michelle House<td>Integration Specialist<td>Sidney<td>$95,400<tr><td>Suki Burks<td>Developer<td>London<td>$114,500<tr><td>Prescott Bartlett<td>Technical Author<td>London<td>$145,000<tr><td>Gavin Cortez<td>Team Leader<td>San Francisco<td>$235,500<tr><td>Martena Mccray<td>Post-Sales support<td>Edinburgh<td>$324,050<tr><td>Unity Butler<td>Marketing Designer<td>San Francisco<td>$85,675<tr><td>Howard Hatfield<td>Office Manager<td>San Francisco<td>$164,500<tr><td>Hope Fuentes<td>Secretary<td>San Francisco<td>$109,850<tr><td>Vivian Harrell<td>Financial Controller<td>San Francisco<td>$452,500<tr><td>Timothy Mooney<td>Office Manager<td>London<td>$136,200<tr><td>Jackson Bradshaw<td>Director<td>New York<td>$645,750<tr><td>Olivia Liang<td>Support Engineer<td>Singapore<td>$234,500<tr><td>Bruno Nash<td>Software Engineer<td>London<td>$163,500<tr><td>Sakura Yamamoto<td>Support Engineer<td>Tokyo<td>$139,575<tr><td>Thor Walton<td>Developer<td>New York<td>$98,540<tr><td>Finn Camacho<td>Support Engineer<td>San Francisco<td>$87,500<tr><td>Serge Baldwin<td>Data Coordinator<td>Singapore<td>$138,575<tr><td>Zenaida Frank<td>Software Engineer<td>New York<td>$125,250<tr><td>Zorita Serrano<td>Software Engineer<td>San Francisco<td>$115,000<tr><td>Jennifer Acosta<td>Junior Javascript Developer<td>Edinburgh<td>$75,650<tr><td>Cara Stevens<td>Sales Assistant<td>New York<td>$145,600<tr><td>Hermione Butler<td>Regional Director<td>London<td>$356,250<tr><td>Lael Greer<td>Systems Administrator<td>London<td>$103,500<tr><td>Jonas Alexander<td>Developer<td>San Francisco<td>$86,500<tr><td>Shad Decker<td>Regional Director<td>Edinburgh<td>$183,000<tr><td>Michael Bruce<td>Javascript Developer<td>Singapore<td>$183,000<tr><td>Donna Snider<td>Customer Support<td>New York<td>$112,000</table></div><script src=https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/js/jquery.dataTables.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/js/dataTables.bootstrap.min.js></script>
_x000D_
Bootstrap 4 with DataTables Example: Bootstrap Docs & DataTables Docs
$(document).ready(function() {
$('#example').DataTable();
});
_x000D_
<link href=https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.min.css rel=stylesheet><link href=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/css/dataTables.bootstrap4.min.css rel=stylesheet><div class=container><h1>Bootstrap 4 DataTables</h1><table cellspacing=0 class="table table-bordered table-hover table-inverse table-striped"id=example width=100%><thead><tr><th>Name<th>Position<th>Office<th>Age<th>Start date<th>Salary<tfoot><tr><th>Name<th>Position<th>Office<th>Age<th>Start date<th>Salary<tbody><tr><td>Tiger Nixon<td>System Architect<td>Edinburgh<td>61<td>2011/04/25<td>$320,800<tr><td>Garrett Winters<td>Accountant<td>Tokyo<td>63<td>2011/07/25<td>$170,750<tr><td>Ashton Cox<td>Junior Technical Author<td>San Francisco<td>66<td>2009/01/12<td>$86,000<tr><td>Cedric Kelly<td>Senior Javascript Developer<td>Edinburgh<td>22<td>2012/03/29<td>$433,060<tr><td>Airi Satou<td>Accountant<td>Tokyo<td>33<td>2008/11/28<td>$162,700<tr><td>Brielle Williamson<td>Integration Specialist<td>New York<td>61<td>2012/12/02<td>$372,000<tr><td>Herrod Chandler<td>Sales Assistant<td>San Francisco<td>59<td>2012/08/06<td>$137,500<tr><td>Rhona Davidson<td>Integration Specialist<td>Tokyo<td>55<td>2010/10/14<td>$327,900<tr><td>Colleen Hurst<td>Javascript Developer<td>San Francisco<td>39<td>2009/09/15<td>$205,500<tr><td>Sonya Frost<td>Software Engineer<td>Edinburgh<td>23<td>2008/12/13<td>$103,600<tr><td>Jena Gaines<td>Office Manager<td>London<td>30<td>2008/12/19<td>$90,560<tr><td>Quinn Flynn<td>Support Lead<td>Edinburgh<td>22<td>2013/03/03<td>$342,000<tr><td>Charde Marshall<td>Regional Director<td>San Francisco<td>36<td>2008/10/16<td>$470,600<tr><td>Haley Kennedy<td>Senior Marketing Designer<td>London<td>43<td>2012/12/18<td>$313,500<tr><td>Tatyana Fitzpatrick<td>Regional Director<td>London<td>19<td>2010/03/17<td>$385,750<tr><td>Michael Silva<td>Marketing Designer<td>London<td>66<td>2012/11/27<td>$198,500<tr><td>Paul Byrd<td>Chief Financial Officer (CFO)<td>New York<td>64<td>2010/06/09<td>$725,000<tr><td>Gloria Little<td>Systems Administrator<td>New York<td>59<td>2009/04/10<td>$237,500<tr><td>Bradley Greer<td>Software Engineer<td>London<td>41<td>2012/10/13<td>$132,000<tr><td>Dai Rios<td>Personnel Lead<td>Edinburgh<td>35<td>2012/09/26<td>$217,500<tr><td>Jenette Caldwell<td>Development Lead<td>New York<td>30<td>2011/09/03<td>$345,000<tr><td>Yuri Berry<td>Chief Marketing Officer (CMO)<td>New York<td>40<td>2009/06/25<td>$675,000<tr><td>Caesar Vance<td>Pre-Sales Support<td>New York<td>21<td>2011/12/12<td>$106,450<tr><td>Doris Wilder<td>Sales Assistant<td>Sidney<td>23<td>2010/09/20<td>$85,600<tr><td>Angelica Ramos<td>Chief Executive Officer (CEO)<td>London<td>47<td>2009/10/09<td>$1,200,000<tr><td>Gavin Joyce<td>Developer<td>Edinburgh<td>42<td>2010/12/22<td>$92,575<tr><td>Jennifer Chang<td>Regional Director<td>Singapore<td>28<td>2010/11/14<td>$357,650<tr><td>Brenden Wagner<td>Software Engineer<td>San Francisco<td>28<td>2011/06/07<td>$206,850<tr><td>Fiona Green<td>Chief Operating Officer (COO)<td>San Francisco<td>48<td>2010/03/11<td>$850,000<tr><td>Shou Itou<td>Regional Marketing<td>Tokyo<td>20<td>2011/08/14<td>$163,000<tr><td>Michelle House<td>Integration Specialist<td>Sidney<td>37<td>2011/06/02<td>$95,400<tr><td>Suki Burks<td>Developer<td>London<td>53<td>2009/10/22<td>$114,500<tr><td>Prescott Bartlett<td>Technical Author<td>London<td>27<td>2011/05/07<td>$145,000<tr><td>Gavin Cortez<td>Team Leader<td>San Francisco<td>22<td>2008/10/26<td>$235,500<tr><td>Martena Mccray<td>Post-Sales support<td>Edinburgh<td>46<td>2011/03/09<td>$324,050<tr><td>Unity Butler<td>Marketing Designer<td>San Francisco<td>47<td>2009/12/09<td>$85,675<tr><td>Howard Hatfield<td>Office Manager<td>San Francisco<td>51<td>2008/12/16<td>$164,500<tr><td>Hope Fuentes<td>Secretary<td>San Francisco<td>41<td>2010/02/12<td>$109,850<tr><td>Vivian Harrell<td>Financial Controller<td>San Francisco<td>62<td>2009/02/14<td>$452,500<tr><td>Timothy Mooney<td>Office Manager<td>London<td>37<td>2008/12/11<td>$136,200<tr><td>Jackson Bradshaw<td>Director<td>New York<td>65<td>2008/09/26<td>$645,750<tr><td>Olivia Liang<td>Support Engineer<td>Singapore<td>64<td>2011/02/03<td>$234,500<tr><td>Bruno Nash<td>Software Engineer<td>London<td>38<td>2011/05/03<td>$163,500<tr><td>Sakura Yamamoto<td>Support Engineer<td>Tokyo<td>37<td>2009/08/19<td>$139,575<tr><td>Thor Walton<td>Developer<td>New York<td>61<td>2013/08/11<td>$98,540<tr><td>Finn Camacho<td>Support Engineer<td>San Francisco<td>47<td>2009/07/07<td>$87,500<tr><td>Serge Baldwin<td>Data Coordinator<td>Singapore<td>64<td>2012/04/09<td>$138,575<tr><td>Zenaida Frank<td>Software Engineer<td>New York<td>63<td>2010/01/04<td>$125,250<tr><td>Zorita Serrano<td>Software Engineer<td>San Francisco<td>56<td>2012/06/01<td>$115,000<tr><td>Jennifer Acosta<td>Junior Javascript Developer<td>Edinburgh<td>43<td>2013/02/01<td>$75,650<tr><td>Cara Stevens<td>Sales Assistant<td>New York<td>46<td>2011/12/06<td>$145,600<tr><td>Hermione Butler<td>Regional Director<td>London<td>47<td>2011/03/21<td>$356,250<tr><td>Lael Greer<td>Systems Administrator<td>London<td>21<td>2009/02/27<td>$103,500<tr><td>Jonas Alexander<td>Developer<td>San Francisco<td>30<td>2010/07/14<td>$86,500<tr><td>Shad Decker<td>Regional Director<td>Edinburgh<td>51<td>2008/11/13<td>$183,000<tr><td>Michael Bruce<td>Javascript Developer<td>Singapore<td>29<td>2011/06/27<td>$183,000<tr><td>Donna Snider<td>Customer Support<td>New York<td>27<td>2011/01/25<td>$112,000</table></div><script src=https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/js/jquery.dataTables.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/js/dataTables.bootstrap4.min.js></script>
_x000D_
Bootstrap 3 with Bootstrap Table Example: Bootstrap Docs & Bootstrap Table Docs
<link href=https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css rel=stylesheet><link href=https://cdnjs.cloudflare.com/ajax/libs/bootstrap-table/1.16.0/bootstrap-table.min.css rel=stylesheet><table data-sort-name=stargazers_count data-sort-order=desc data-toggle=table data-url="https://api.github.com/users/wenzhixin/repos?type=owner&sort=full_name&direction=asc&per_page=100&page=1"><thead><tr><th data-field=name data-sortable=true>Name<th data-field=stargazers_count data-sortable=true>Stars<th data-field=forks_count data-sortable=true>Forks<th data-field=description data-sortable=true>Description</thead></table><script src=https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/bootstrap-table/1.16.0/bootstrap-table.min.js></script>
_x000D_
Bootstrap 3 with Bootstrap Sortable Example: Bootstrap Docs & Bootstrap Sortable Docs
function randomDate(t,e){return new Date(t.getTime()+Math.random()*(e.getTime()-t.getTime()))}function randomName(){return["Jack","Peter","Frank","Steven"][Math.floor(4*Math.random())]+" "+["White","Jackson","Sinatra","Spielberg"][Math.floor(4*Math.random())]}function newTableRow(){var t=moment(randomDate(new Date(2e3,0,1),new Date)).format("D.M.YYYY"),e=Math.round(Math.random()*Math.random()*100*100)/100,a=Math.round(Math.random()*Math.random()*100*100)/100,r=Math.round(Math.random()*Math.random()*100*100)/100;return"<tr><td>"+randomName()+"</td><td>"+e+"</td><td>"+a+"</td><td>"+r+"</td><td>"+Math.round(100*(e+a+r))/100+"</td><td data-dateformat='D-M-YYYY'>"+t+"</td></tr>"}function customSort(){alert("Custom sort.")}!function(t,e){"use strict";"function"==typeof define&&define.amd?define("tinysort",function(){return e}):t.tinysort=e}(this,function(){"use strict";function t(t,e){for(var a,r=t.length,o=r;o--;)e(t[a=r-o-1],a)}function e(t,e,a){for(var o in e)(a||t[o]===r)&&(t[o]=e[o]);return t}function a(t,e,a){u.push({prepare:t,sort:e,sortBy:a})}var r,o=!1,n=null,s=window,d=s.document,i=parseFloat,l=/(-?\d+\.?\d*)\s*$/g,c=/(\d+\.?\d*)\s*$/g,u=[],f=0,h=0,p=String.fromCharCode(4095),m={selector:n,order:"asc",attr:n,data:n,useVal:o,place:"org",returns:o,cases:o,natural:o,forceStrings:o,ignoreDashes:o,sortFunction:n,useFlex:o,emptyEnd:o};return s.Element&&function(t){t.matchesSelector=t.matchesSelector||t.mozMatchesSelector||t.msMatchesSelector||t.oMatchesSelector||t.webkitMatchesSelector||function(t){for(var e=this,a=(e.parentNode||e.document).querySelectorAll(t),r=-1;a[++r]&&a[r]!=e;);return!!a[r]}}(Element.prototype),e(a,{loop:t}),e(function(a,s){function v(t){var a=!!t.selector,r=a&&":"===t.selector[0],o=e(t||{},m);E.push(e({hasSelector:a,hasAttr:!(o.attr===n||""===o.attr),hasData:o.data!==n,hasFilter:r,sortReturnNumber:"asc"===o.order?1:-1},o))}function b(t,e,a){for(var r=a(t.toString()),o=a(e.toString()),n=0;r[n]&&o[n];n++)if(r[n]!==o[n]){var s=Number(r[n]),d=Number(o[n]);return s==r[n]&&d==o[n]?s-d:r[n]>o[n]?1:-1}return r.length-o.length}function g(t){for(var e,a,r=[],o=0,n=-1,s=0;e=(a=t.charAt(o++)).charCodeAt(0);){var d=46==e||e>=48&&57>=e;d!==s&&(r[++n]="",s=d),r[n]+=a}return r}function w(){return Y.forEach(function(t){F.appendChild(t.elm)}),F}function S(t){var e=t.elm,a=d.createElement("div");return t.ghost=a,e.parentNode.insertBefore(a,e),t}function y(t,e){var a=t.ghost,r=a.parentNode;r.insertBefore(e,a),r.removeChild(a),delete t.ghost}function C(t,e){var a,r=t.elm;return e.selector&&(e.hasFilter?r.matchesSelector(e.selector)||(r=n):r=r.querySelector(e.selector)),e.hasAttr?a=r.getAttribute(e.attr):e.useVal?a=r.value||r.getAttribute("value"):e.hasData?a=r.getAttribute("data-"+e.data):r&&(a=r.textContent),M(a)&&(e.cases||(a=a.toLowerCase()),a=a.replace(/\s+/g," ")),null===a&&(a=p),a}function M(t){return"string"==typeof t}M(a)&&(a=d.querySelectorAll(a)),0===a.length&&console.warn("No elements to sort");var x,N,F=d.createDocumentFragment(),D=[],Y=[],$=[],E=[],k=!0,A=a.length&&a[0].parentNode,T=A.rootNode!==document,R=a.length&&(s===r||!1!==s.useFlex)&&!T&&-1!==getComputedStyle(A,null).display.indexOf("flex");return function(){0===arguments.length?v({}):t(arguments,function(t){v(M(t)?{selector:t}:t)}),f=E.length}.apply(n,Array.prototype.slice.call(arguments,1)),t(a,function(t,e){N?N!==t.parentNode&&(k=!1):N=t.parentNode;var a=E[0],r=a.hasFilter,o=a.selector,n=!o||r&&t.matchesSelector(o)||o&&t.querySelector(o)?Y:$,s={elm:t,pos:e,posn:n.length};D.push(s),n.push(s)}),x=Y.slice(0),Y.sort(function(e,a){var n=0;for(0!==h&&(h=0);0===n&&f>h;){var s=E[h],d=s.ignoreDashes?c:l;if(t(u,function(t){var e=t.prepare;e&&e(s)}),s.sortFunction)n=s.sortFunction(e,a);else if("rand"==s.order)n=Math.random()<.5?1:-1;else{var p=o,m=C(e,s),v=C(a,s),w=""===m||m===r,S=""===v||v===r;if(m===v)n=0;else if(s.emptyEnd&&(w||S))n=w&&S?0:w?1:-1;else{if(!s.forceStrings){var y=M(m)?m&&m.match(d):o,x=M(v)?v&&v.match(d):o;y&&x&&m.substr(0,m.length-y[0].length)==v.substr(0,v.length-x[0].length)&&(p=!o,m=i(y[0]),v=i(x[0]))}n=m===r||v===r?0:s.natural&&(isNaN(m)||isNaN(v))?b(m,v,g):v>m?-1:m>v?1:0}}t(u,function(t){var e=t.sort;e&&(n=e(s,p,m,v,n))}),0==(n*=s.sortReturnNumber)&&h++}return 0===n&&(n=e.pos>a.pos?1:-1),n}),function(){var t=Y.length===D.length;if(k&&t)R?Y.forEach(function(t,e){t.elm.style.order=e}):N?N.appendChild(w()):console.warn("parentNode has been removed");else{var e=E[0].place,a="start"===e,r="end"===e,o="first"===e,n="last"===e;if("org"===e)Y.forEach(S),Y.forEach(function(t,e){y(x[e],t.elm)});else if(a||r){var s=x[a?0:x.length-1],d=s&&s.elm.parentNode,i=d&&(a&&d.firstChild||d.lastChild);i&&(i!==s.elm&&(s={elm:i}),S(s),r&&d.appendChild(s.ghost),y(s,w()))}else(o||n)&&y(S(x[o?0:x.length-1]),w())}}(),Y.map(function(t){return t.elm})},{plugin:a,defaults:m})}()),function(t,e){"function"==typeof define&&define.amd?define(["jquery","tinysort","moment"],e):e(t.jQuery,t.tinysort,t.moment||void 0)}(this,function(t,e,a){var r,o,n,s=t(document);function d(e){var s=void 0!==a;r=e.sign?e.sign:"arrow","default"==e.customSort&&(e.customSort=c),o=e.customSort||o||c,n=e.emptyEnd,t("table.sortable").each(function(){var r=t(this),o=!0===e.applyLast;r.find("span.sign").remove(),r.find("> thead [colspan]").each(function(){for(var e=parseFloat(t(this).attr("colspan")),a=1;a<e;a++)t(this).after('<th class="colspan-compensate">')}),r.find("> thead [rowspan]").each(function(){for(var e=t(this),a=parseFloat(e.attr("rowspan")),r=1;r<a;r++){var o=e.parent("tr"),n=o.next("tr"),s=o.children().index(e);n.children().eq(s).before('<th class="rowspan-compensate">')}}),r.find("> thead tr").each(function(e){t(this).find("th").each(function(a){var r=t(this);r.addClass("nosort").removeClass("up down"),r.attr("data-sortcolumn",a),r.attr("data-sortkey",a+"-"+e)})}),r.find("> thead .rowspan-compensate, .colspan-compensate").remove(),r.find("th").each(function(){var e=t(this);if(void 0!==e.attr("data-dateformat")&&s){var o=parseFloat(e.attr("data-sortcolumn"));r.find("td:nth-child("+(o+1)+")").each(function(){var r=t(this);r.attr("data-value",a(r.text(),e.attr("data-dateformat")).format("YYYY/MM/DD/HH/mm/ss"))})}else if(void 0!==e.attr("data-valueprovider")){o=parseFloat(e.attr("data-sortcolumn"));r.find("td:nth-child("+(o+1)+")").each(function(){var a=t(this);a.attr("data-value",new RegExp(e.attr("data-valueprovider")).exec(a.text())[0])})}}),r.find("td").each(function(){var e=t(this);void 0!==e.attr("data-dateformat")&&s?e.attr("data-value",a(e.text(),e.attr("data-dateformat")).format("YYYY/MM/DD/HH/mm/ss")):void 0!==e.attr("data-valueprovider")?e.attr("data-value",new RegExp(e.attr("data-valueprovider")).exec(e.text())[0]):void 0===e.attr("data-value")&&e.attr("data-value",e.text())});var n=l(r),d=n.bsSort;r.find('> thead th[data-defaultsort!="disabled"]').each(function(e){var a=t(this),r=a.closest("table.sortable");a.data("sortTable",r);var s=a.attr("data-sortkey"),i=o?n.lastSort:-1;d[s]=o?d[s]:a.attr("data-defaultsort"),void 0!==d[s]&&o===(s===i)&&(d[s]="asc"===d[s]?"desc":"asc",u(a,r))})})}function i(e){var a=t(e),r=a.data("sortTable")||a.closest("table.sortable");u(a,r)}function l(e){var a=e.data("bootstrap-sortable-context");return void 0===a&&(a={bsSort:[],lastSort:void 0},e.find('> thead th[data-defaultsort!="disabled"]').each(function(e){var r=t(this),o=r.attr("data-sortkey");a.bsSort[o]=r.attr("data-defaultsort"),void 0!==a.bsSort[o]&&(a.lastSort=o)}),e.data("bootstrap-sortable-context",a)),a}function c(t,a){e(t,a)}function u(e,a){a.trigger("before-sort");var s=parseFloat(e.attr("data-sortcolumn")),d=l(a),i=d.bsSort;if(e.attr("colspan")){var c=parseFloat(e.data("mainsort"))||0,f=parseFloat(e.data("sortkey").split("-").pop());if(a.find("> thead tr").length-1>f)return void u(a.find('[data-sortkey="'+(s+c)+"-"+(f+1)+'"]'),a);s+=c}var h=e.attr("data-defaultsign")||r;if(a.find("> thead th").each(function(){t(this).removeClass("up").removeClass("down").addClass("nosort")}),t.browser.mozilla){var p=a.find("> thead div.mozilla");void 0!==p&&(p.find(".sign").remove(),p.parent().html(p.html())),e.wrapInner('<div class="mozilla"></div>'),e.children().eq(0).append('<span class="sign '+h+'"></span>')}else a.find("> thead span.sign").remove(),e.append('<span class="sign '+h+'"></span>');var m=e.attr("data-sortkey"),v="desc"!==e.attr("data-firstsort")?"desc":"asc",b=i[m]||v;d.lastSort!==m&&void 0!==i[m]||(b="asc"===b?"desc":"asc"),i[m]=b,d.lastSort=m,"desc"===i[m]?(e.find("span.sign").addClass("up"),e.addClass("up").removeClass("down nosort")):e.addClass("down").removeClass("up nosort");var g=a.children("tbody").children("tr"),w=[];t(g.filter('[data-disablesort="true"]').get().reverse()).each(function(e,a){var r=t(a);w.push({index:g.index(r),row:r}),r.remove()});var S=g.not('[data-disablesort="true"]');if(0!=S.length){var y="asc"===i[m]&&n;o(S,{emptyEnd:y,selector:"td:nth-child("+(s+1)+")",order:i[m],data:"value"})}t(w.reverse()).each(function(t,e){0===e.index?a.children("tbody").prepend(e.row):a.children("tbody").children("tr").eq(e.index-1).after(e.row)}),a.find("> tbody > tr > td.sorted,> thead th.sorted").removeClass("sorted"),S.find("td:eq("+s+")").addClass("sorted"),e.addClass("sorted"),a.trigger("sorted")}if(t.bootstrapSortable=function(t){null==t?d({}):t.constructor===Boolean?d({applyLast:t}):void 0!==t.sortingHeader?i(t.sortingHeader):d(t)},s.on("click",'table.sortable>thead th[data-defaultsort!="disabled"]',function(t){i(this)}),!t.browser){t.browser={chrome:!1,mozilla:!1,opera:!1,msie:!1,safari:!1};var f=navigator.userAgent;t.each(t.browser,function(e){t.browser[e]=!!new RegExp(e,"i").test(f),t.browser.mozilla&&"mozilla"===e&&(t.browser.mozilla=!!new RegExp("firefox","i").test(f)),t.browser.chrome&&"safari"===e&&(t.browser.safari=!1)})}t(t.bootstrapSortable)}),function(){var t=$("table");t.append(newTableRow()),t.append(newTableRow()),$("button.add-row").on("click",function(){var e=$(this);t.append(newTableRow()),e.data("sort")?$.bootstrapSortable(!0):$.bootstrapSortable(!1)}),$("button.change-sort").on("click",function(){$(this).data("custom")?$.bootstrapSortable(!0,void 0,customSort):$.bootstrapSortable(!0,void 0,"default")}),t.on("sorted",function(){alert("Table was sorted.")}),$("#event").on("change",function(){$(this).is(":checked")?t.on("sorted",function(){alert("Table was sorted.")}):t.off("sorted")}),$("input[name=sign]:radio").change(function(){$.bootstrapSortable(!0,$(this).val())})}();
_x000D_
table.sortable span.sign { display: block; position: absolute; top: 50%; right: 5px; font-size: 12px; margin-top: -10px; color: #bfbfc1; } table.sortable th:after { display: block; position: absolute; top: 50%; right: 5px; font-size: 12px; margin-top: -10px; color: #bfbfc1; } table.sortable th.arrow:after { content: ''; } table.sortable span.arrow, span.reversed, th.arrow.down:after, th.reversedarrow.down:after, th.arrow.up:after, th.reversedarrow.up:after { border-style: solid; border-width: 5px; font-size: 0; border-color: #ccc transparent transparent transparent; line-height: 0; height: 0; width: 0; margin-top: -2px; } table.sortable span.arrow.up, th.arrow.up:after { border-color: transparent transparent #ccc transparent; margin-top: -7px; } table.sortable span.reversed, th.reversedarrow.down:after { border-color: transparent transparent #ccc transparent; margin-top: -7px; } table.sortable span.reversed.up, th.reversedarrow.up:after { border-color: #ccc transparent transparent transparent; margin-top: -2px; } table.sortable span.az:before, th.az.down:after { content: "a .. z"; } table.sortable span.az.up:before, th.az.up:after { content: "z .. a"; } table.sortable th.az.nosort:after, th.AZ.nosort:after, th._19.nosort:after, th.month.nosort:after { content: ".."; } table.sortable span.AZ:before, th.AZ.down:after { content: "A .. Z"; } table.sortable span.AZ.up:before, th.AZ.up:after { content: "Z .. A"; } table.sortable span._19:before, th._19.down:after { content: "1 .. 9"; } table.sortable span._19.up:before, th._19.up:after { content: "9 .. 1"; } table.sortable span.month:before, th.month.down:after { content: "jan .. dec"; } table.sortable span.month.up:before, th.month.up:after { content: "dec .. jan"; } table.sortable thead th:not([data-defaultsort=disabled]) { cursor: pointer; position: relative; top: 0; left: 0; } table.sortable thead th:hover:not([data-defaultsort=disabled]) { background: #efefef; } table.sortable thead th div.mozilla { position: relative; }
_x000D_
<link href=https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.13.1/css/all.min.css rel=stylesheet><link href=https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css rel=stylesheet><div class=container><div class=hero-unit><h1>Bootstrap Sortable</h1></div><table class="sortable table table-bordered table-striped"><thead><tr><th style=width:20%;vertical-align:middle data-defaultsign=nospan class=az data-defaultsort=asc rowspan=2><i class="fa fa-fw fa-map-marker"></i>Name<th style=text-align:center colspan=4 data-mainsort=3>Results<th data-defaultsort=disabled><tr><th style=width:20% colspan=2 data-mainsort=1 data-firstsort=desc>Round 1<th style=width:20%>Round 2<th style=width:20%>Total<t
modulus is remainders system.
So 7 % 5 = 2.
5 % 7 = 5
3 % 7 = 3
2 % 7 = 2
1 % 7 = 1
When used inside a function to determine the array index. Is it safe programming ? That is a different question. I guess.
A variable prefixed with @
is an instance variable, while one prefixed with @@
is a class variable. Check out the following example; its output is in the comments at the end of the puts
lines:
class Test
@@shared = 1
def value
@@shared
end
def value=(value)
@@shared = value
end
end
class AnotherTest < Test; end
t = Test.new
puts "t.value is #{t.value}" # 1
t.value = 2
puts "t.value is #{t.value}" # 2
x = Test.new
puts "x.value is #{x.value}" # 2
a = AnotherTest.new
puts "a.value is #{a.value}" # 2
a.value = 3
puts "a.value is #{a.value}" # 3
puts "t.value is #{t.value}" # 3
puts "x.value is #{x.value}" # 3
You can see that @@shared
is shared between the classes; setting the value in an instance of one changes the value for all other instances of that class and even child classes, where a variable named @shared
, with one @
, would not be.
[Update]
As Phrogz mentions in the comments, it's a common idiom in Ruby to track class-level data with an instance variable on the class itself. This can be a tricky subject to wrap your mind around, and there is plenty of additional reading on the subject, but think about it as modifying the Class
class, but only the instance of the Class
class you're working with. An example:
class Polygon
class << self
attr_accessor :sides
end
end
class Triangle < Polygon
@sides = 3
end
class Rectangle < Polygon
@sides = 4
end
class Square < Rectangle
end
class Hexagon < Polygon
@sides = 6
end
puts "Triangle.sides: #{Triangle.sides.inspect}" # 3
puts "Rectangle.sides: #{Rectangle.sides.inspect}" # 4
puts "Square.sides: #{Square.sides.inspect}" # nil
puts "Hexagon.sides: #{Hexagon.sides.inspect}" # 6
I included the Square
example (which outputs nil
) to demonstrate that this may not behave 100% as you expect; the article I linked above has plenty of additional information on the subject.
Also keep in mind that, as with most data, you should be extremely careful with class variables in a multithreaded environment, as per dmarkow's comment.
var childNodeArray = document.getElementById('somethingOtherThanid').childNodes;
You can use the codecs module, like this:
import codecs
BLOCKSIZE = 1048576 # or some other, desired size in bytes
with codecs.open(sourceFileName, "r", "your-source-encoding") as sourceFile:
with codecs.open(targetFileName, "w", "utf-8") as targetFile:
while True:
contents = sourceFile.read(BLOCKSIZE)
if not contents:
break
targetFile.write(contents)
EDIT: added BLOCKSIZE
parameter to control file chunk size.
Use the Underscore.js findWhere function (http://underscorejs.org/#findWhere):
var purposeObjects = [
{purpose: "daily"},
{purpose: "weekly"},
{purpose: "monthly"}
];
var daily = _.findWhere(purposeObjects, {purpose: 'daily'});
daily
would equal:
{"purpose":"daily"}
Here's a fiddle: http://jsfiddle.net/spencerw/oqbgc21x/
To return more than one (if you had more in your array) you could use _.where(...)
I think the tutorial passed by @emdhie will help a lot. How install maven
But, i followed and still getting mvn: command not found
I found this solution to know what was wrong in my configuration:
I opened the command line and called this command:
../apache-maven-3.5.3/bin/mvn --version
After that i got the correct JAVA_HOME and saw that my JAVA_HOME was wrong.
Hope this helps.
Assuming your dataframe is mydf:
mydf$task <- factor(mydf$task, levels = c("up", "down", "left", "right", "front", "back"))
If you are stuck with .Net 4.0 and the target site is using TLS 1.2, you need the following line instead.
ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
source: TLS 1.2 and .NET Support: How to Avoid Connection Errors
On Snow Leopard (OS X 10.6.8), running 'man lsof' yields:
lsof -i 4 -a
(actual manual entry is 'lsof -i 4 -a -p 1234')
The previous answers didn't work on Snow Leopard, but I was trying to use 'netstat -nlp' until I saw the use of 'lsof' in the answer by pts.
Try setting the HOME environment variable in Windows to your home folder (c:\users\username
).
( you can confirm that this is the problem by doing echo $HOME
in git bash and echo %HOME%
in cmd - latter might not be available )
Working code from my sources:
HTML WORLD
<select name="select_from" disabled>...</select>
JS WORLD
var from = jQuery('select[name=select_from]');
//add disabled
from.attr('disabled', 'disabled');
//remove it
from.removeAttr("disabled");
Subclipse gets confused by Windows' truly diabolical locking behaviour. Unlocker is your friend. This can find locked files and forcibly release the locks.
One suggestion in other answers is to use ax.set_axis_bgcolor("red")
. This however is deprecated, and doesn't work on MatPlotLib >= v2.0.
There is also the suggestion to use ax.patch.set_facecolor("red")
(works on both MatPlotLib v1.5 & v2.2). While this works fine, an even easier solution for v2.0+ is to use
ax.set_facecolor("red")
var myString = 'sample String'; var length = myString.length ;
first you need to defined a keypressed handler or some kind of a event trigger to listen , btw , getting the length is really simple like mentioned above
If you are using Netbeans older version, you have to make changes in maven to use https over http
Open C:\Program Files\NetBeans8.0.2\java\maven\conf\settings.xml and paste below code in between mirrors tag
<mirror>
<id>maven-mirror</id>
<name>Maven Mirror</name>
<url>https://repo.maven.apache.org/maven2</url>
<mirrorOf>central</mirrorOf>
</mirror>
It will force maven to use https://repo.maven.apache.org/maven2 url.
what happened to me is that I have multiple projects in my solution. I meant to debug project 1, however, the project 2 was set as the default starting project. I fixed this by, right click on the project and select "Set as startup project", then running debugging is fine.
String.prototype.replaceAll = function (replaceThis, withThis) {
var re = new RegExp(replaceThis,"g");
return this.replace(re, withThis);
};
var aa = "abab54..aba".replaceAll("\\.", "v");
Test with this tool
Try following or check demo disabled and readonly
$('#dropUnit').is(':disabled') //Returns bool
$('#dropUnit').attr('readonly') == "readonly" //If Condition
You can check jQuery FAQ .
Works on Django 3
I found I believe good way, I have the base.html in root folder, and all other html files in App folders, I settings.py
import os
# This settings are to allow store templates,static and media files in root folder
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
TEMPLATE_DIR = os.path.join(BASE_DIR,'templates')
STATIC_DIR = os.path.join(BASE_DIR,'static')
MEDIA_DIR = os.path.join(BASE_DIR,'media')
# This is default path from Django, must be added
#AFTER our BASE_DIR otherwise DB will be broken.
BASE_DIR = Path(__file__).resolve().parent.parent
# add your apps to Installed apps
INSTALLED_APPS = [
'main',
'weblogin',
..........
]
# Now add TEMPLATE_DIR to 'DIRS' where in TEMPLATES like bellow
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [TEMPLATE_DIR, BASE_DIR,],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
# On end of Settings.py put this refferences to Static and Media files
STATICFILES_DIRS = [STATIC_DIR,]
STATIC_URL = '/static/'
MEDIA_ROOT = [MEDIA_DIR,]
MEDIA_URL = '/media/'
If you have problem with Database, please check if you put the original BASE_DIR bellow the new BASE_DIR otherwise change
# Original
'NAME': BASE_DIR / 'db.sqlite3',
# to
'NAME': os.path.join(BASE_DIR,'db.sqlite3'),
Django now will be able to find the HTML and Static files both in the App folders and in Root folder without need of adding the name of App folder in front of the file.
Struture:
-DjangoProject
-static(css,JS ...)
-templates(base.html, ....)
-other django files like (manage.py, ....)
-App1
-templates(index1.html, other html files can extend now base.html too)
-other App1 files
-App2
-templates(index2.html, other html files can extend now base.html too)
-other App2 files
This question can be solved in a number of ways, but really, knowing the stacking rules allows you to find the best answer that works for you.
The <html>
element is your only stacking context, so just follow the stacking rules inside a stacking context and you will see that elements are stacked in this order
- The stacking context’s root element (the
<html>
element in this case)- Positioned elements (and their children) with negative z-index values (higher values are stacked in front of lower values; elements with the same value are stacked according to appearance in the HTML)
- Non-positioned elements (ordered by appearance in the HTML)
- Positioned elements (and their children) with a z-index value of auto (ordered by appearance in the HTML)
- Positioned elements (and their children) with positive z-index values (higher values are stacked in front of lower values; elements with the same value are stacked according to appearance in the HTML)
So you can
#under
positioned -ve z-index appear behind non-positioned #over
element#over
to relative
so that rule 5 applies to it Developers should know the following before trying to change the stacking order of elements.
<html>
element is the root element and is the first stacking contextThe Stacking order and stacking context rules below are from this link
<html>
element)The order of elements:
<html>
element is the only stacking context by default, but any element can be a root element for a stacking context, see rules above)
If you're using Intellij on Mac, this setup finally worked for me.
Installations: Intellij
Settings:
Enable Annotation processor
Check if Lombok plugin is enabled
Add Lombok jar in Global Libraries and project dependencies.
File --> Project Structure --> Project Settings --> Modules --> Dependencies Tab = check lombok
Restart Intellij
This is also a good way to get server-side controls to postback inside FancyBox and/or jQuery Dialog. For example, in FancyBox-div:
<asp:Button OnClientClick="testMe('param1');" ClientIDMode="Static" ID="MyButton" runat="server" Text="Ok" >
</asp:Button>
JavaScript:
function testMe(params) {
var btnID= '<%=MyButton.ClientID %>';
__doPostBack(btnID, params);
}
Server-side Page_Load:
string parameter = Request["__EVENTARGUMENT"];
if (parameter == "param1")
MyButton_Click(sender, e);
In case this is still an issue for anyone, I have a bit of clarification on the previous answers. I was running into this same issue using ant with only a JDK installed. Although, the JDK installer gave me a directory structure like this:
Directory of C:\Program Files\Java
05/08/2012 09:43 AM <DIR> .
05/08/2012 09:43 AM <DIR> ..
05/08/2012 09:46 AM <DIR> jdk1.7.0_04
05/08/2012 09:19 AM <DIR> jre6
05/08/2012 09:44 AM <DIR> jre7
0 File(s) 0 bytes
and when I ran ant, it complained about not finding tools.jar under the jre7 subdirectory. It wasn't until I set "JAVA_HOME=C:\Program Files\Java\jdk1.7.0_04"
that the error went away.
Enhanced Java 8+ example (Forked from Nikita Koksharov's answer)
public static void pack(String sourceDirPath, String zipFilePath) throws IOException {
Path p = Files.createFile(Paths.get(zipFilePath));
Path pp = Paths.get(sourceDirPath);
try (ZipOutputStream zs = new ZipOutputStream(Files.newOutputStream(p));
Stream<Path> paths = Files.walk(pp)) {
paths
.filter(path -> !Files.isDirectory(path))
.forEach(path -> {
ZipEntry zipEntry = new ZipEntry(pp.relativize(path).toString());
try {
zs.putNextEntry(zipEntry);
Files.copy(path, zs);
zs.closeEntry();
} catch (IOException e) {
System.err.println(e);
}
});
}
}
Files.walk
has been wrapped in try with resources
block so that stream can be closed. This resolves blocker issue identified by SonarQube
.
Thanks @Matt Harrison for pointing this.
As your query string is a literal, and assuming your dates are properly stored as DATE
you should use date literals:
SELECT * FROM OrderArchive
WHERE OrderDate <= DATE '2015-12-31'
If you want to use TO_DATE
(because, for example, your query value is not a literal), I suggest you to explicitly set the NLS_DATE_LANGUAGE parameter as you are using US abbreviated month names. That way, it won't break on some localized Oracle Installation:
SELECT * FROM OrderArchive
WHERE OrderDate <= to_date('31 Dec 2014', 'DD MON YYYY',
'NLS_DATE_LANGUAGE = American');
To print a schema, I use jade and do an export to a file of the database then bring it into word to format and print
I created a batch file with the following code in a windows machine to monitor every second. It works for me.
:loop
cls
"C:\Program Files\NVIDIA Corporation\NVSMI\nvidia-smi"
timeout /T 1
goto loop
nvidia-smi exe is usually located in "C:\Program Files\NVIDIA Corporation" if you want to run the command only once.
use checked
: true, false property of the checkbox.
jQuery:
if($('input[type=checkbox]').is(':checked')) {
$(this).prop('checked',true);
} else {
$(this).prop('checked',false);
}
Well, to answer the immediate question:
>>> s = "http://www.domain.com/?s=some&two=20"
The rfind
method returns the index of right-most substring:
>>> s.rfind("&")
29
You can take all elements up to a given index with the slicing operator:
>>> "foobar"[:4]
'foob'
Putting the two together:
>>> s[:s.rfind("&")]
'http://www.domain.com/?s=some'
If you are dealing with URLs in particular, you might want to use built-in libraries that deal with URLs. If, for example, you wanted to remove two
from the above query string:
First, parse the URL as a whole:
>>> import urlparse, urllib
>>> parse_result = urlparse.urlsplit("http://www.domain.com/?s=some&two=20")
>>> parse_result
SplitResult(scheme='http', netloc='www.domain.com', path='/', query='s=some&two=20', fragment='')
Take out just the query string:
>>> query_s = parse_result.query
>>> query_s
's=some&two=20'
Turn it into a dict
:
>>> query_d = urlparse.parse_qs(parse_result.query)
>>> query_d
{'s': ['some'], 'two': ['20']}
>>> query_d['s']
['some']
>>> query_d['two']
['20']
Remove the 'two'
key from the dict:
>>> del query_d['two']
>>> query_d
{'s': ['some']}
Put it back into a query string:
>>> new_query_s = urllib.urlencode(query_d, True)
>>> new_query_s
's=some'
And now stitch the URL back together:
>>> result = urlparse.urlunsplit((
parse_result.scheme, parse_result.netloc,
parse_result.path, new_query_s, parse_result.fragment))
>>> result
'http://www.domain.com/?s=some'
The benefit of this is that you have more control over the URL. Like, if you always wanted to remove the two
argument, even if it was put earlier in the query string ("two=20&s=some"
), this would still do the right thing. It might be overkill depending on what you want to do.
I believe that it can be done by simply setting your FormBorderStyle Property to None and the WindowState to Maximized. If you are using Visual Studio both of those can be found in the IDE so there is no need to do so programmatically. Make sure to include some way of closing/exiting the program before doing this cause this will remove that oh so helpful X in the upper right corner.
EDIT:
Try this instead. It is a snippet that I have kept for a long time. I can't even remember who to credit for it, but it works.
/*
* A function to put a System.Windows.Forms.Form in fullscreen mode
* Author: Danny Battison
* Contact: [email protected]
*/
// a struct containing important information about the state to restore to
struct clientRect
{
public Point location;
public int width;
public int height;
};
// this should be in the scope your class
clientRect restore;
bool fullscreen = false;
/// <summary>
/// Makes the form either fullscreen, or restores it to it's original size/location
/// </summary>
void Fullscreen()
{
if (fullscreen == false)
{
this.restore.location = this.Location;
this.restore.width = this.Width;
this.restore.height = this.Height;
this.TopMost = true;
this.Location = new Point(0,0);
this.FormBorderStyle = FormBorderStyle.None;
this.Width = Screen.PrimaryScreen.Bounds.Width;
this.Height = Screen.PrimaryScreen.Bounds.Height;
}
else
{
this.TopMost = false;
this.Location = this.restore.location;
this.Width = this.restore.width;
this.Height = this.restore.height;
// these are the two variables you may wish to change, depending
// on the design of your form (WindowState and FormBorderStyle)
this.WindowState = FormWindowState.Normal;
this.FormBorderStyle = FormBorderStyle.Sizable;
}
}
I found success with the following, works with .zip
(Simplified here for posting: no error checking & just unzips all files to current folder)
function DownloadAndUnzip(URL){
var unzip = require('unzip');
var http = require('http');
var request = http.get(URL, function(response) {
response.pipe(unzip.Extract({path:'./'}))
});
}
If you don't want a terminal window to pop up when you run your program, use pythonw.exe
;
Otherwise, use python.exe
Regarding the syntax error: print
is now a function in 3.x
So use instead:
print("a")
Below is how I got this working.
The Key point was: I needed to use the ViewModel associated with the view in order for the runtime to be able to resolve the object in the request.
[I know that that there is a way to bind an object other than the default ViewModel object but ended up simply populating the necessary properties for my needs as I could not get it to work]
[HttpPost]
public ActionResult GetDataForInvoiceNumber(MyViewModel myViewModel)
{
var invoiceNumberQueryResult = _viewModelBuilder.HydrateMyViewModelGivenInvoiceDetail(myViewModel.InvoiceNumber, myViewModel.SelectedCompanyCode);
return Json(invoiceNumberQueryResult, JsonRequestBehavior.DenyGet);
}
The JQuery script used to call this action method:
var requestData = {
InvoiceNumber: $.trim(this.value),
SelectedCompanyCode: $.trim($('#SelectedCompanyCode').val())
};
$.ajax({
url: '/en/myController/GetDataForInvoiceNumber',
type: 'POST',
data: JSON.stringify(requestData),
dataType: 'json',
contentType: 'application/json; charset=utf-8',
error: function (xhr) {
alert('Error: ' + xhr.statusText);
},
success: function (result) {
CheckIfInvoiceFound(result);
},
async: true,
processData: false
});
These are all of the vaules I am aware of. Please help udating the array if you know of any other values.
function ismobile(){
if(/android|webos|iphone|ipad|ipod|blackberry|opera mini|Windows Phone|iemobile|WPDesktop|XBLWP7/i.test(navigator.userAgent.toLowerCase())) {
return true;
}
else
return false;
}
A lot of times the first couple chars will be a magic number for various file formats. You could check for this in addition to your exception checking above.
1: C is a type of computer programming language. While embedded C is a set of language extensions for the C Programming language.
2: C has a free-format program source code, in a desktop computer. while embedded C has different format based on embedded processor (micro- controllers/microprocessors).
3: C have normal optimization, in programming. while embedded C high level optimization in programming.
4: C programming must have required operating system. while embedded C may or may not be required operating system.
5: C can use resources from OS, memory, etc, i.e all resources from desktop computer can be used by C. while embedded C can use limited resources, like RAM, ROM, and I/Os on an embedded processor.
If you need workaround, as this form can be placed in 3rd party systems, you can use Apache mod_rewrite like this:
RewriteRule ^dummy.link$ index.php?a=1&b=2 [QSA,L]
then your new form will look like this:
<form ... action="http:/www.blabla.com/dummy.link" method="GET">
<input type="hidden" name="c" value="3" />
</form>
and Apache will append 3rd parameter to query
Hi I'm also relatively new but I can give you basic help.
UPDATE 12.01.2016:
The bold line is the current branch.
You can also just double click a branch to use checkout.
And here some helpful links:
Download: https://remarkableapp.github.io/
So essentially you have a list of lists, with mylist being the name of the main list and the first element being $f10010_1
which is printed out (and which contains 4 more lists).
I think the easiest way to do this is to use lapply
with the addition of dataframe
(assuming that each list inside each element of the main list (like the lists in $f10010_1
) has the same length):
lapply(mylist, function(x) write.table( data.frame(x), 'test.csv' , append= T, sep=',' ))
The above will convert $f10010_1
into a dataframe then do the same with every other element and append one below the other in 'test.csv'
You can also type ?write.table
on your console to check what other arguments you need to pass when you write the table to a csv file e.g. whether you need row names or column names etc.
So I know this is a rapidly changing field but (as of 2015-09-08) I found the following in the Docker Registry HTTP API V2:
GET /v2/_catalog
GET /v2/<name>/tags/list
Based on that the following worked for me on a local registry (registry:2 IMAGE ID 1e847b14150e365a95d76a9cc6b71cd67ca89905e3a0400fa44381ecf00890e1 created on 2015-08-25T07:55:17.072):
$ curl -X GET http://localhost:5000/v2/_catalog
{"repositories":["ubuntu"]}
$ curl -X GET http://localhost:5000/v2/ubuntu/tags/list
{"name":"ubuntu","tags":["latest"]}
Another workaround would be to make use of prettier to format the JSON. The example below is using 'json' parser but it could also use 'json5', see list of valid parsers.
const prettier = require("prettier");
console.log(prettier.format(JSON.stringify(object),{ semi: false, parser: "json" }));
You are looking for the command scandir.
$path = '/tmp';
$files = scandir($path);
Following code will remove .
and ..
from the returned array from scandir
:
$files = array_diff(scandir($path), array('.', '..'));
Yes, in VS2010 they changed this behavior somewhy.
Open your project and navigate to the following menu: Project -> YourProjectName Properties -> Configuration Properties -> Linker -> System. There in the field SubSystem use the drop-down to select Console (/SUBSYSTEM:CONSOLE) and apply the change.
"Start without debugging" should do the right thing now.
Or, if you write in C++ or in C, put
system("pause");
at the end of your program, then you'll get "Press any key to continue..." even when running in debug mode.
To add on to the Enterprise distribution cert solution: you can open Keychain and inspect the cert. If there is any red text saying the trust chain can't be verified or it being revoked, it WILL NOT WORK! On my computer, our distribution cert was showing as revoked even though the web portal showed it as still valid. We got a new distribution cert, which was green (valid) in Keychain, and this solved the issue.
I came here because I had funny-char-syndrome on my requests
output. I thought response.text
would give me a properly decoded string, but in the output I found funny double-chars where German umlauts should have been.
Turns out response.encoding
was empty somehow and so response
did not know how to properly decode the content and just treated it as ASCII (I guess).
My solution was to get the raw bytes with 'response.content' and manually apply decode('utf_8')
to it. The result was schöne Umlaute.
The correctly decoded
für
vs. the improperly decoded
fAzr
Here is a simple analogy; Imagine you are downloading movies online, with O(1), if it takes 5 minutes to download one movie, it will still take the same time to download 20 movies. So it doesn't matter how many movies you are downloading, they will take the same time(5 minutes) whether it's one or 20 movies. A normal example of this analogy is when you go to a movie library, whether you are taking one movie or 5, you will simply just pick them at once. Hence spending the same time.
However, with O(n), if it takes 5 minutes to download one movie, it will take about 50 minutes to download 10 movies. So time is not constant or is somehow proportional to the number of movies you are downloading.
If waiting for all tasks in the ExecutorService
to finish isn't precisely your goal, but rather waiting until a specific batch of tasks has completed, you can use a CompletionService
— specifically, an ExecutorCompletionService
.
The idea is to create an ExecutorCompletionService
wrapping your Executor
, submit some known number of tasks through the CompletionService
, then draw that same number of results from the completion queue using either take()
(which blocks) or poll()
(which does not). Once you've drawn all the expected results corresponding to the tasks you submitted, you know they're all done.
Let me state this one more time, because it's not obvious from the interface: You must know how many things you put into the CompletionService
in order to know how many things to try to draw out. This matters especially with the take()
method: call it one time too many and it will block your calling thread until some other thread submits another job to the same CompletionService
.
There are some examples showing how to use CompletionService
in the book Java Concurrency in Practice.
Or by direct string access:
$string[strlen($string)-1];
Note that this doesn't work for multibyte strings. If you need to work with multibyte string, consider using the mb_*
string family of functions.
As of PHP 7.1.0 negative numeric indices are also supported, e.g just $string[-1];
give the read / write permission to the IIS user or group users
Start -> run -> inetmgr
enable the ASP.NET authentication for your default website
3. For 64-bit (x64), create this folder: C:\Windows\SysWOW64\config\systemprofile\Desktop
For 32-bit (x86), create this folder: C:\Windows\System32\config\systemprofile\Desktop
The windows service, if running under the systemprofile, needs the Desktop folder. This folder was automatically created on XP and older Windows Server versions, but not for Vista and Windows 2008 Server.
inspired by @dilettante answer, here's my solution as an extension function in kotlin:
/* sets a valid id that isn't in use */
fun View.findAndSetFirstValidId() {
var i: Int
do {
i = Random.nextInt()
} while (findViewById<View>(i) != null)
id = i
}
It's really just a coding style. The compiler generates the exact same for both variants.
See also here for the performance question:
In VS 2010 just make the browser as your default broswer in which you want to run your application and there is no need to set anything in visual studio.
I did it for google chrome and its working for me. I just made google chrome as my default browser and its working fine. I am almost sure that this should work in VS 2008 also.
If you want to $broadcast
use the $rootScope
:
$scope.startScanner = function() {
$rootScope.$broadcast('scanner-started');
}
And then to receive, use the $scope
of your controller:
$scope.$on('scanner-started', function(event, args) {
// do what you want to do
});
If you want you can pass arguments when you $broadcast
:
$rootScope.$broadcast('scanner-started', { any: {} });
And then receive them:
$scope.$on('scanner-started', function(event, args) {
var anyThing = args.any;
// do what you want to do
});
Documentation for this inside the Scope docs.
What's new in Python 3.0 says:
All text is Unicode; however encoded Unicode is represented as binary data
If you want to ensure you are outputting utf-8, here's an example from this page on unicode in 3.0:
b'\x80abc'.decode("utf-8", "strict")
The best way to find out what properties and methods are available to an HTML node (object) is to do something like:
console.log($("#my-node"));
From jQuery 1.6+ you can just use outerHTML to include the HTML tags in your string output:
var node = $("#my-node").outerHTML;
I thought I'd try code this up for fun:
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
'5': ['9', '10'],
'4': ['7', '8'],
'7': ['11', '12']
}
def bfs(graph, forefront, end):
# assumes no cycles
next_forefront = [(node, path + ',' + node) for i, path in forefront if i in graph for node in graph[i]]
for node,path in next_forefront:
if node==end:
return path
else:
return bfs(graph,next_forefront,end)
print bfs(graph,[('1','1')],'11')
# >>>
# 1, 4, 7, 11
If you want cycles you could add this:
for i, j in for_front: # allow cycles, add this code
if i in graph:
del graph[i]
According to the documentation.
If you are running on the TensorFlow or CNTK backends, your code will automatically run on GPU if any available GPU is detected.
You can check what all devices are used by tensorflow by -
from tensorflow.python.client import device_lib
print(device_lib.list_local_devices())
Also as suggested in this answer
import tensorflow as tf
sess = tf.Session(config=tf.ConfigProto(log_device_placement=True))
This will print whether your tensorflow is using a CPU or a GPU backend. If you are running this command in jupyter notebook, check out the console from where you have launched the notebook.
If you are sceptic whether you have installed the tensorflow gpu version or not. You can install the gpu version via pip.
pip install tensorflow-gpu
while (fscanf(input,"%s",arr) != EOF && count!=7) {
len=strlen(arr);
count++;
}
I would just set padding: -whateverYouWantpx;
Here's the exact definition of UsedRange
(MSDN reference) :
Every Worksheet object has a UsedRange property that returns a Range object representing the area of a worksheet that is being used. The UsedRange property represents the area described by the farthest upper-left and farthest lower-right nonempty cells in a worksheet and includes all cells in between.
So basically, what that line does is :
.UsedRange
-> "Draws" a box around the outer-most cells with content inside..Columns
-> Selects the entire columns of those cells.Count
-> Returns an integer corresponding to how many columns there are (in this selection)- 8
-> Subtracts 8 from the previous integer.I assume VBA calculates the UsedRange by finding the non-empty cells with lowest and highest index values.
Most likely, you're getting an error because the number of lines in your range is smaller than 3, and therefore the number returned is negative.
XDocument xdoc = XDocument.Load("data.xml");
var lv1s = xdoc.Root.Descendants("level1");
var lvs = lv1s.SelectMany(l=>
new string[]{ l.Attribute("name").Value }
.Union(
l.Descendants("level2")
.Select(l2=>" " + l2.Attribute("name").Value)
)
);
foreach (var lv in lvs)
{
result.AppendLine(lv);
}
Ps. You have to use .Root on any of these versions.
If you get this error when you are running it, then probably its because you have not included mysql-connector JAR file to your webserver's lib folder.
Now it is important to add mysql-connector-java-5.1.25-bin.jar to your classpath and also to your webserver's lib directory. Tomcat lib path is given as an example Tomcat 6.0\lib
In fact, in R, this operation is very easy:
If the matrix 'a' contains some NaN, you just need to use the following code to replace it by 0:
a <- matrix(c(1, NaN, 2, NaN), ncol=2, nrow=2)
a[is.nan(a)] <- 0
a
If the data frame 'b' contains some NaN, you just need to use the following code to replace it by 0:
#for a data.frame:
b <- data.frame(c1=c(1, NaN, 2), c2=c(NaN, 2, 7))
b[is.na(b)] <- 0
b
Note the difference is.nan
when it's a matrix vs. is.na
when it's a data frame.
Doing
#...
b[is.nan(b)] <- 0
#...
yields: Error in is.nan(b) : default method not implemented for type 'list'
because b is a data frame.
Note: Edited for small but confusing typos
#footer:after
{
content: "";
width: 40px;
height: 3px;
background-color: #529600;
left: 0;
position: relative;
display: block;
top: 10px;
}
According to Microsoft: Controller action return types in ASP.NET Core web API, scroll down almost to the bottom, you find the following blurb about 404 relating to an object not found in the database. Here they suggest that a 404 is appropriate for Empty Data.
Dim
and Private
work the same, though the common convention is to use Private
at the module level, and Dim
at the Sub/Function level. Public
and Global
are nearly identical in their function, however Global
can only be used in standard modules, whereas Public
can be used in all contexts (modules, classes, controls, forms etc.) Global
comes from older versions of VB and was likely kept for backwards compatibility, but has been wholly superseded by Public
.
It should be sufficient to use
git ls-files --others -i --exclude-standard
as that covers everything covered by
git ls-files --others -i --exclude-from=.git/info/exclude
therefore the latter is redundant.
~/.gitconfig
file:
git config --global alias.ignored "ls-files --others -i --exclude-standard"
Now you can just type git ignored
to see the list. Much easier to remember, and faster to type.
If you prefer the more succinct display of Jason Geng's solution, you can add an alias for that like this:
git config --global alias.ignored "status --ignored -s"
However the more verbose output is more useful for troubleshooting problems with your .gitignore files, as it lists every single cotton-pickin' file that is ignored. You would normally pipe the results through grep
to see if a file you expect to be ignored is in there, or if a file you don't want to be ignore is in there.
git ignored | grep some-file-that-isnt-being-ignored-properly
Then, when you just want to see a short display, it's easy enough to remember and type
git status --ignored
(The -s
can normally be left off.)
This is happening because of the CORS error. CORS stands for Cross Origin Resource Sharing. In simple words, this error occurs when we try to access a domain/resource from another domain.
Read More about it here: CORS error with jquery
To fix this, if you have access to the other domain, you will have to allow Access-Control-Allow-Origin in the server. This can be added in the headers. You can enable this for all the requests/domains or a specific domain.
How to get a cross-origin resource sharing (CORS) post request working
These links may help
You could use preg_split
instead of explode
and split on [ ]+
(one or more spaces). But I think in this case you could go with preg_match_all
and capturing:
preg_match_all('/[ ]php[ ]+\S+[ ]+(\S+)/', $input, $matches);
$result = $matches[1];
The pattern matches a space, php
, more spaces, a string of non-spaces (the path), more spaces, and then captures the next string of non-spaces. The first space is mostly to ensure that you don't match php
as part of a user name but really only as a command.
An alternative to capturing is the "keep" feature of PCRE. If you use \K
in the pattern, everything before it is discarded in the match:
preg_match_all('/[ ]php[ ]+\S+[ ]+\K\S+/', $input, $matches);
$result = $matches[0];
I would use preg_match()
. I do something similar for many of my system management scripts. Here is an example:
$test = "user 12052 0.2 0.1 137184 13056 ? Ss 10:00 0:00 php /home/user/public_html/utilities/runProcFile.php cust1 cron
user 12054 0.2 0.1 137184 13064 ? Ss 10:00 0:00 php /home/user/public_html/utilities/runProcFile.php cust3 cron
user 12055 0.6 0.1 137844 14220 ? Ss 10:00 0:00 php /home/user/public_html/utilities/runProcFile.php cust4 cron
user 12057 0.2 0.1 137184 13052 ? Ss 10:00 0:00 php /home/user/public_html/utilities/runProcFile.php cust89 cron
user 12058 0.2 0.1 137184 13052 ? Ss 10:00 0:00 php /home/user/public_html/utilities/runProcFile.php cust435 cron
user 12059 0.3 0.1 135112 13000 ? Ss 10:00 0:00 php /home/user/public_html/utilities/runProcFile.php cust16 cron
root 12068 0.0 0.0 106088 1164 pts/1 S+ 10:00 0:00 sh -c ps aux | grep utilities > /home/user/public_html/logs/dashboard/currentlyPosting.txt
root 12070 0.0 0.0 103240 828 pts/1 R+ 10:00 0:00 grep utilities";
$lines = explode("\n", $test);
foreach($lines as $line){
if(preg_match("/.php[\s+](cust[\d]+)[\s+]cron/i", $line, $matches)){
print_r($matches);
}
}
The above prints:
Array
(
[0] => .php cust1 cron
[1] => cust1
)
Array
(
[0] => .php cust3 cron
[1] => cust3
)
Array
(
[0] => .php cust4 cron
[1] => cust4
)
Array
(
[0] => .php cust89 cron
[1] => cust89
)
Array
(
[0] => .php cust435 cron
[1] => cust435
)
Array
(
[0] => .php cust16 cron
[1] => cust16
)
You can set $test
to equal the output from exec. the values you are looking for would be in the if
statement under the foreach
. $matches[1]
will have the custx value.
I was able to fix this!
Had the same problems as stated above, made sure nothing was using port 80 and still not working and getting the message that Apache and Mysql were detected with the wrong path.
I did install XAMPP once before, uninstalled and reinstalled. I even manually uninstalled but still had issues.
The fix. Make sure you backup your system first!
Start Services via Control Panel>Admin Tools (also with Ctrl+R and services.msc
)
Look for Apache and MySQL services. Look at the patch indicated in the description (right click on service then click on properties). Chances are that you have Apache listed twice, one from your correct install and one from a previous install. Even if you only see one, look at the path, chances are it's from a previous install and causing your install not to work. In either case, you need to delete those incorrect services.
a. Got to command prompt (run as administrator): Start > all programs > Accessories > right click on Command Prompt > Select 'run as administrator'
b. on command prompt type sc delete service
, where service is the service you're wanting to delete, such as apache2.1 (or sc delete Apache2.4
). It should be exactly as it appears in your services. If the service has spaces such as Apache 2.1 then enter it in quotes, i.e. sc delete "Apache 2.1"
c. press enter. Now refresh or close/open your services window and you'll see it`s gone.
DO THIS for all services that XAMPP finds as running with an incorrect path.
Once you do this, go ahead and restart the XAMPP control panel (as administrator) and voila! all works. No conflicts
C's treatment of arrays is very different from Java's, and you'll have to adjust your thinking accordingly. Arrays in C are not first-class objects (that is, an array expression does not retain it's "array-ness" in most contexts). In C, an expression of type "N-element array of T
" will be implicitly converted ("decay") to an expression of type "pointer to T
", except when the array expression is an operand of the sizeof
or unary &
operators, or if the array expression is a string literal being used to initialize another array in a declaration.
Among other things, this means that you cannot pass an array expression to a function and have it received as an array type; the function actually receives a pointer type:
void foo(char *a, size_t asize)
{
// do something with a
}
int bar(void)
{
char str[6] = "Hello";
foo(str, sizeof str);
}
In the call to foo
, the expression str
is converted from type char [6]
to char *
, which is why the first parameter of foo
is declared char *a
instead of char a[6]
. In sizeof str
, since the array expression is an operand of the sizeof
operator, it's not converted to a pointer type, so you get the number of bytes in the array (6).
If you're really interested, you can read Dennis Ritchie's The Development of the C Language to understand where this treatment comes from.
The upshot is that functions cannot return array types, which is fine since array expressions cannot be the target of an assignment, either.
The safest method is for the caller to define the array, and pass its address and size to the function that's supposed to write to it:
void returnArray(const char *srcArray, size_t srcSize, char *dstArray, char dstSize)
{
...
dstArray[i] = some_value_derived_from(srcArray[i]);
...
}
int main(void)
{
char src[] = "This is a test";
char dst[sizeof src];
...
returnArray(src, sizeof src, dst, sizeof dst);
...
}
Another method is for the function to allocate the array dynamically and return the pointer and size:
char *returnArray(const char *srcArray, size_t srcSize, size_t *dstSize)
{
char *dstArray = malloc(srcSize);
if (dstArray)
{
*dstSize = srcSize;
...
}
return dstArray;
}
int main(void)
{
char src[] = "This is a test";
char *dst;
size_t dstSize;
dst = returnArray(src, sizeof src, &dstSize);
...
free(dst);
...
}
In this case, the caller is responsible for deallocating the array with the free
library function.
Note that dst
in the above code is a simple pointer to char
, not a pointer to an array of char
. C's pointer and array semantics are such that you can apply the subscript operator []
to either an expression of array type or pointer type; both src[i]
and dst[i]
will access the i
'th element of the array (even though only src
has array type).
You can declare a pointer to an N-element array of T
and do something similar:
char (*returnArray(const char *srcArr, size_t srcSize))[SOME_SIZE]
{
char (*dstArr)[SOME_SIZE] = malloc(sizeof *dstArr);
if (dstArr)
{
...
(*dstArr)[i] = ...;
...
}
return dstArr;
}
int main(void)
{
char src[] = "This is a test";
char (*dst)[SOME_SIZE];
...
dst = returnArray(src, sizeof src);
...
printf("%c", (*dst)[j]);
...
}
Several drawbacks with the above. First of all, older versions of C expect SOME_SIZE
to be a compile-time constant, meaning that function will only ever work with one array size. Secondly, you have to dereference the pointer before applying the subscript, which clutters the code. Pointers to arrays work better when you're dealing with multi-dimensional arrays.
I added these two lines of code and work fine for me.
Works in Swift 5+
func adjustUITextViewHeight(textView : UITextView)
{
textView.translatesAutoresizingMaskIntoConstraints = true
textView.isScrollEnabled = false
textView.sizeToFit()
}
/*Maximum value that can be entered is 2,147,483,647
* Program to convert entered number into string
* */
import java.util.Scanner;
public class NumberToWords
{
public static void main(String[] args)
{
double num;//for taking input number
Scanner obj=new Scanner(System.in);
do
{
System.out.println("\n\nEnter the Number (Maximum value that can be entered is 2,147,483,647)");
num=obj.nextDouble();
if(num<=2147483647)//checking if entered number exceeds maximum integer value
{
int number=(int)num;//type casting double number to integer number
splitNumber(number);//calling splitNumber-it will split complete number in pairs of 3 digits
}
else
System.out.println("Enter smaller value");//asking user to enter a smaller value compared to 2,147,483,647
}while(num>2147483647);
}
//function to split complete number into pair of 3 digits each
public static void splitNumber(int number)
{ //splitNumber array-contains the numbers in pair of 3 digits
int splitNumber[]=new int[4],temp=number,i=0,index;
//splitting number into pair of 3
if(temp==0)
System.out.println("zero");
while(temp!=0)
{
splitNumber[i++]=temp%1000;
temp/=1000;
}
//passing each pair of 3 digits to another function
for(int j=i-1;j>-1;j--)
{ //toWords function will split pair of 3 digits to separate digits
if(splitNumber[j]!=0)
{toWords(splitNumber[j]);
if(j==3)//if the number contained more than 9 digits
System.out.print("billion,");
else if(j==2)//if the number contained more than 6 digits & less than 10 digits
System.out.print("million,");
else if(j==1)
System.out.print("thousand,");//if the number contained more than 3 digits & less than 7 digits
}
}
}
//function that splits number into individual digits
public static void toWords(int number)
//splitSmallNumber array contains individual digits of number passed to this function
{ int splitSmallNumber[]=new int[3],i=0,j;
int temp=number;//making temporary copy of the number
//logic to split number into its constituent digits
while(temp!=0)
{
splitSmallNumber[i++]=temp%10;
temp/=10;
}
//printing words for each digit
for(j=i-1;j>-1;j--)
//{ if the digit is greater than zero
if(splitSmallNumber[j]>=0)
//if the digit is at 3rd place or if digit is at (1st place with digit at 2nd place not equal to zero)
{ if(j==2||(j==0 && (splitSmallNumber[1]!=1)))
{
switch(splitSmallNumber[j])
{
case 1:System.out.print("one ");break;
case 2:System.out.print("two ");break;
case 3:System.out.print("three ");break;
case 4:System.out.print("four ");break;
case 5:System.out.print("five ");break;
case 6:System.out.print("six ");break;
case 7:System.out.print("seven ");break;
case 8:System.out.print("eight ");break;
case 9:System.out.print("nine ");break;
}
}
//if digit is at 2nd place
if(j==1)
{ //if digit at 2nd place is 0 or 1
if(((splitSmallNumber[j]==0)||(splitSmallNumber[j]==1))&& splitSmallNumber[2]!=0 )
System.out.print("hundred ");
switch(splitSmallNumber[1])
{ case 1://if digit at 2nd place is 1 example-213
switch(splitSmallNumber[0])
{
case 1:System.out.print("eleven ");break;
case 2:System.out.print("twelve ");break;
case 3:System.out.print("thirteen ");break;
case 4:System.out.print("fourteen ");break;
case 5:System.out.print("fifteen ");break;
case 6:System.out.print("sixteen ");break;
case 7:System.out.print("seventeen ");break;
case 8:System.out.print("eighteen ");break;
case 9:System.out.print("nineteen ");break;
case 0:System.out.print("ten ");break;
}break;
//if digit at 2nd place is not 1
case 2:System.out.print("twenty ");break;
case 3:System.out.print("thirty ");break;
case 4:System.out.print("forty ");break;
case 5:System.out.print("fifty ");break;
case 6:System.out.print("sixty ");break;
case 7:System.out.print("seventy ");break;
case 8:System.out.print("eighty ");break;
case 9:System.out.print("ninety ");break;
//case 0: System.out.println("hundred ");break;
}
}
}
}
}
Say your array looked like
arr = [ { a: 1, b: 2, c: 3 }, { a: 4, b: 5, c: 6 }, { a: 7, b: 8, c: 9 } ]
(or possibly other keys) you could do
arr.map((o) => {
return Object.keys(o)
}).reduce((prev, curr) => {
return prev.concat(curr)
}).filter((col, i, array) => {
return array.indexOf(col) === i
});
["a", "b", "c"]
In case above-accepted answer did not work, try below solution. You can use it for port 8080 or for any other ports.
sudo lsof -i tcp:3000
Replace 3000 with whichever port you want. Run below command to kill that process.
sudo kill -9 PID
PID is process ID you want to kill.
Below is the output of commands on mac Terminal.
Below is the server side code that would call the handler and recieve the stream data and loads into xml doc
Stream stream = null;
**Create a web request with the specified URL**
WebRequest myWebRequest = WebRequest.Create(@"http://localhost/XMLProvider/XMLProcessorHandler.ashx");
**Senda a web request and wait for response.**
WebResponse webResponse = myWebRequest.GetResponse();
**Get the stream object from response object**
stream = webResponse.GetResponseStream();
XmlDocument xmlDoc = new XmlDocument();
**Load stream data into xml**
xmlDoc.Load(stream);
Just upgrade pip worked for me:
pip install --upgrade pip
.card-img-top {
width: 100%;
height: 30vh;
object-fit: contain;
}
Contain will help in getting Complete Image displayed inside Card.
Adjust height "30vh" according to your need!
Action
is a Type of Delegate provided by the .NET framework. The Action
points to a method with no parameters and does not return a value.
() =>
is lambda expression syntax. Lambda expressions are not of Type Delegate
. Invoke requires Delegate
so Action
can be used to wrap the lambda expression and provide the expected Type
to Invoke()
Invoke
causes said Action
to execute on the thread that created the Control's window handle. Changing threads is often necessary to avoid Exceptions
. For example, if one tries to set the Rtf
property on a RichTextBox
when an Invoke is necessary, without first calling Invoke, then a Cross-thread operation not valid
exception will be thrown. Check Control.InvokeRequired
before calling Invoke.
BeginInvoke
is the Asynchronous version of Invoke
. Asynchronous means the thread will not block the caller as opposed to a synchronous call which is blocking.
Three years later, I ran into the same problem. Here's my solution, everybody feel free to cut-n-paste. The simplest things keep us up all night! Running on an ATMega, and Adafruit Feather M0:
void setup() {
// turn on Serial so we can see...
Serial.begin(9600);
// the culprit:
uint8_t my_str[6]; // an array big enough for a 5 character string
// give it something so we can see what it's doing
my_str[0] = 'H';
my_str[1] = 'e';
my_str[2] = 'l';
my_str[3] = 'l';
my_str[4] = 'o';
my_str[5] = 0; // be sure to set the null terminator!!!
// can we see it?
Serial.println((char*)my_str);
// can we do logical operations with it as-is?
Serial.println((char*)my_str == 'Hello');
// okay, it can't; wrong data type (and no terminator!), so let's do this:
String str((char*)my_str);
// can we see it now?
Serial.println(str);
// make comparisons
Serial.println(str == 'Hello');
// one more time just because
Serial.println(str == "Hello");
// one last thing...!
Serial.println(sizeof(str));
}
void loop() {
// nothing
}
And we get:
Hello // as expected
0 // no surprise; wrong data type and no terminator in comparison value
Hello // also, as expected
1 // YAY!
1 // YAY!
6 // as expected
Hope this helps someone!
A lot has been said already, but to make it simple, here's my take. Interfaces are intended to have method contracts to be implemented by the consumers or classes and not to have fields to store values.
You may argue that then why properties are allowed? So the simple answer is - properties are internally defined as methods only.
This is how I did it.
JFrame.setDefaultLookAndFeelDecorated(true);
JDialog.setDefaultLookAndFeelDecorated(true);
JFrame frame = new JFrame("SAP Multiple Entries");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel(new GridLayout(10,10,10,10));
frame.setLayout(new FlowLayout());
frame.setSize(512, 512);
JButton button = new JButton("Select File");
button.setPreferredSize(new Dimension(256, 256));
panel.add(button);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JFileChooser fileChooser = new JFileChooser();
int returnValue = fileChooser.showOpenDialog(null);
if (returnValue == JFileChooser.APPROVE_OPTION) {
File selectedFile = fileChooser.getSelectedFile();
keep = selectedFile.getAbsolutePath();
// System.out.println(keep);
//out.println(file.flag);
if(file.flag==true) {
JOptionPane.showMessageDialog(null, "It is done! \nLocation: " + file.path , "Success Message", JOptionPane.INFORMATION_MESSAGE);
}
else{
JOptionPane.showMessageDialog(null, "failure", "not okay", JOptionPane.INFORMATION_MESSAGE);
}
}
}
});
frame.add(button);
frame.pack();
frame.setVisible(true);
dialog.getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT,WindowManager.LayoutParams.WRAP_CONTENT);
In my case the problem was using the language tag "en_US" in Locale.forLanguageTag(..)
instead of "en-US" - use a dash instead of underline!
Also use Locale.forLanguageTag("en-US")
instead of new Locale("en_US")
or new Locale("en_US")
to define a language ("en") with a region ("US") - but new Locale("en")
works.
I tried various method it didn't work.But this worked.Hope it will work for you as well. The file/directory must be at this locations:
projec/your_app/templates project/your_app/static
import os
PROJECT_DIR = os.path.realpath(os.path.dirname(_____file_____))
STATIC_ROOT = '/your_path/static/'
example:
STATIC_ROOT = '/home/project_name/your_app/static/'
STATIC_URL = '/static/'
STATICFILES_DIRS =(
PROJECT_DIR+'/static',
##//don.t forget comma
)
TEMPLATE_DIRS = (
PROJECT_DIR+'/templates/',
)
inside body
{% load staticfiles %}
//for image
img src="{% static "fb.png" %}" alt="image here"
//note that fb.png is at /home/project/app/static/fb.png
If fb.png was inside /home/project/app/static/image/fb.png then
img src="{% static "images/fb.png" %}" alt="image here"
Just change it to
var appointmentNoShow = from a in appointments
from p in properties
from c in clients
where a.Id == p.OID &&
(a.Start.Date >= startDate.Date && a.Start.Date <= endDate)
What worked for me was:
$('select option').each(function(){$(this).removeAttr('selected');});
You can do it programmatically by reading the java
system properties
@Test
public void javaVersion() {
System.out.println(System.getProperty("java.version"));
System.out.println(System.getProperty("java.runtime.version"));
System.out.println(System.getProperty("java.home"));
System.out.println(System.getProperty("java.vendor"));
System.out.println(System.getProperty("java.vendor.url"));
System.out.println(System.getProperty("java.class.path"));
}
This will output somthing like
1.7.0_17
1.7.0_17-b02
C:\workspaces\Oracle\jdk1.7\jre
Oracle Corporation
http://java.oracle.com/
C:\workspaces\Misc\Miscellaneous\bin; ...
The first line shows the version number. You can parse it an see whether it fits your minimun required java version or not. You can find a description for the naming convention here and more infos here.
vi myfile.csv
:%s/replaceme/withthis/
:wq
and press EnterNow you will have the new pattern in your file.
System.out.println()
also outputs to LogCat. The benefit of using good old System.out.println()
is that you can print an object like System.out.println(object)
to the console if you need to check if a variable is initialized or not.
Log.d
, Log.v
, Log.w
etc methods only allow you to print strings to the console and not objects. To circumvent this (if you desire), you must use String.format
.
Also worth noting for completeness, my usual method for doing this with 2 same-length arrays @keys
and @vals
which you would prefer were a hash...
my %hash = map { $keys[$_] => $vals[$_] } (0..@keys-1);
If you don't want to calculate it using java's Calendar you can use Androids Time class It is supposed to be faster but I didn't notice much difference when i switched.
I could not find any pre-defined functions to determine time between 2 dates for an age in Android. There are some nice helper functions to get formatted time between dates in the DateUtils but that's probably not what you want.
You're thinking it wrong.
What you are trying to do:
If stdin exists use it, else check whether the user supplied a filename.
What you should be doing instead:
If the user supplies a filename, then use the filename. Else use stdin.
You cannot know the total length of an incoming stream unless you read it all and keep it buffered. You just cannot seek backwards into pipes. This is a limitation of how pipes work. Pipes are not suitable for all tasks and sometimes intermediate files are required.
Run either of these a few second apart. You'll detect the high CPU connection. Or: stored CPU in a local variable, WAITFOR DELAY, compare stored and current CPU values
select * from master..sysprocesses
where status = 'runnable' --comment this out
order by CPU
desc
select * from master..sysprocesses
order by CPU
desc
May not be the most elegant but it'd effective and quick.
This has happened to me also, after undating to IOS11 on my iPhone. When I try to connect to the corporate network it bring up the corporate cert and says it isn't trusted. I press the 'trust' button and the connection fails and the cert does not appear in the trusted certs list.
I would check to see if the SqlDataReader has rows returned first:
SqlDataReader dr = cmd10.ExecuteReader();
if (dr.HasRows)
{
...
}
If you want to declare the dictionary once and never change it then declare it as readonly:
private static readonly Dictionary<string, string> ErrorCodes
= new Dictionary<string, string>
{
{ "1", "Error One" },
{ "2", "Error Two" }
};
If you want to dictionary items to be readonly (not just the reference but also the items in the collection) then you will have to create a readonly dictionary class that implements IDictionary.
Check out ReadOnlyCollection for reference.
BTW const can only be used when declaring scalar values inline.
I often do this:
arr = ["a", "b", "c"]
(0...arr.length).map do |int|
[arr[int], int + 2]
end
#=> [["a", 2], ["b", 3], ["c", 4]]
Instead of directly iterating over the elements of the array, you're iterating over a range of integers and using them as the indices to retrieve the elements of the array.
I had the same problem minutes ago. I've mentioned changing the 'deployment target' fixed my problem.
Swift 4.
Use this extension to create a solid colored image
extension UIImage {
public func coloredImage(color: UIColor) -> UIImage? {
return coloredImage(color: color, size: CGSize(width: 1, height: 1))
}
public func coloredImage(color: UIColor, size: CGSize) -> UIImage? {
UIGraphicsBeginImageContextWithOptions(size, false, 0)
color.setFill()
UIRectFill(CGRect(origin: CGPoint(), size: size))
guard let image = UIGraphicsGetImageFromCurrentImageContext() else { return nil }
UIGraphicsEndImageContext()
return image
}
}
Here is an alternative solution to @Terrance's answer. You can easly outsource the conversion. The Gson library does wonderful work converting various data structures into JSON and the other way around.
public static void execute() {
Map<String, String> comment = new HashMap<String, String>();
comment.put("subject", "Using the GSON library");
comment.put("message", "Using libraries is convenient.");
String json = new GsonBuilder().create().toJson(comment, Map.class);
makeRequest("http://192.168.0.1:3000/post/77/comments", json);
}
public static HttpResponse makeRequest(String uri, String json) {
try {
HttpPost httpPost = new HttpPost(uri);
httpPost.setEntity(new StringEntity(json));
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
return new DefaultHttpClient().execute(httpPost);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
Similar can be done by using Jackson instead of Gson. I also recommend taking a look at Retrofit which hides a lot of this boilerplate code for you. For more experienced developers I recommend trying out RxAndroid.
If it still actual for someone, my solution was as follows:
.container{
overflow: hidden;
overflow-y: auto;
}
Here's a very simple way to do it;
int main()
{
int s=7,l=1;
vector <bool> v;
v.clear();
while (l <= 4)
{
v.push_back(s%2);
s /= 2;
l++;
}
for (l=(v.size()-1); l >= 0; l--)
{
cout<<v[l]<<" ";
}
return 0;
}
If you are on Linux then make sure your File name must match with the string passed in the load model methods the first argument.
$this->load->model('Order_Model','order_model');
You can use the second argument using that you can call methods from your model and it will work on Linux and windows as well
$result = $this->order_model->get_order_details($orderID);
The parser is getting confused by the header of the file. It reads the first row and infers the number of columns from that row. But the first two rows aren't representative of the actual data in the file.
Try it with data = pd.read_csv(path, skiprows=2)
Here we go... just copy the code to a module, it's ready to use
Private Type hashtable
key As Variant
value As Variant
End Type
Private GetErrMsg As String
Private Function CreateHashTable(htable() As hashtable) As Boolean
GetErrMsg = ""
On Error GoTo CreateErr
ReDim htable(0)
CreateHashTable = True
Exit Function
CreateErr:
CreateHashTable = False
GetErrMsg = Err.Description
End Function
Private Function AddValue(htable() As hashtable, key As Variant, value As Variant) As Long
GetErrMsg = ""
On Error GoTo AddErr
Dim idx As Long
idx = UBound(htable) + 1
Dim htVal As hashtable
htVal.key = key
htVal.value = value
Dim i As Long
For i = 1 To UBound(htable)
If htable(i).key = key Then Err.Raise 9999, , "Key [" & CStr(key) & "] is not unique"
Next i
ReDim Preserve htable(idx)
htable(idx) = htVal
AddValue = idx
Exit Function
AddErr:
AddValue = 0
GetErrMsg = Err.Description
End Function
Private Function RemoveValue(htable() As hashtable, key As Variant) As Boolean
GetErrMsg = ""
On Error GoTo RemoveErr
Dim i As Long, idx As Long
Dim htTemp() As hashtable
idx = 0
For i = 1 To UBound(htable)
If htable(i).key <> key And IsEmpty(htable(i).key) = False Then
ReDim Preserve htTemp(idx)
AddValue htTemp, htable(i).key, htable(i).value
idx = idx + 1
End If
Next i
If UBound(htable) = UBound(htTemp) Then Err.Raise 9998, , "Key [" & CStr(key) & "] not found"
htable = htTemp
RemoveValue = True
Exit Function
RemoveErr:
RemoveValue = False
GetErrMsg = Err.Description
End Function
Private Function GetValue(htable() As hashtable, key As Variant) As Variant
GetErrMsg = ""
On Error GoTo GetValueErr
Dim found As Boolean
found = False
For i = 1 To UBound(htable)
If htable(i).key = key And IsEmpty(htable(i).key) = False Then
GetValue = htable(i).value
Exit Function
End If
Next i
Err.Raise 9997, , "Key [" & CStr(key) & "] not found"
Exit Function
GetValueErr:
GetValue = ""
GetErrMsg = Err.Description
End Function
Private Function GetValueCount(htable() As hashtable) As Long
GetErrMsg = ""
On Error GoTo GetValueCountErr
GetValueCount = UBound(htable)
Exit Function
GetValueCountErr:
GetValueCount = 0
GetErrMsg = Err.Description
End Function
To use in your VB(A) App:
Public Sub Test()
Dim hashtbl() As hashtable
Debug.Print "Create Hashtable: " & CreateHashTable(hashtbl)
Debug.Print ""
Debug.Print "ID Test Add V1: " & AddValue(hashtbl, "Hallo_0", "Testwert 0")
Debug.Print "ID Test Add V2: " & AddValue(hashtbl, "Hallo_0", "Testwert 0")
Debug.Print "ID Test 1 Add V1: " & AddValue(hashtbl, "Hallo.1", "Testwert 1")
Debug.Print "ID Test 2 Add V1: " & AddValue(hashtbl, "Hallo-2", "Testwert 2")
Debug.Print "ID Test 3 Add V1: " & AddValue(hashtbl, "Hallo 3", "Testwert 3")
Debug.Print ""
Debug.Print "Test 1 Removed V1: " & RemoveValue(hashtbl, "Hallo_1")
Debug.Print "Test 1 Removed V2: " & RemoveValue(hashtbl, "Hallo_1")
Debug.Print "Test 2 Removed V1: " & RemoveValue(hashtbl, "Hallo-2")
Debug.Print ""
Debug.Print "Value Test 3: " & CStr(GetValue(hashtbl, "Hallo 3"))
Debug.Print "Value Test 1: " & CStr(GetValue(hashtbl, "Hallo_1"))
Debug.Print ""
Debug.Print "Hashtable Content:"
For i = 1 To UBound(hashtbl)
Debug.Print CStr(i) & ": " & CStr(hashtbl(i).key) & " - " & CStr(hashtbl(i).value)
Next i
Debug.Print ""
Debug.Print "Count: " & CStr(GetValueCount(hashtbl))
End Sub
yes please download curl-devel as instructed above. also don't forget to link to lib curl:
-L/path/of/curl/lib/libcurl.a (g++)
cheers
We can create object to Downcasting. In this type also. : calling the base class methods
Animal a=new Dog();
a.callme();
((Dog)a).callme2();
You may try this one,
declare @Number INT = 5
print 'There are ' + CONVERT(VARCHAR, @Number) + ' alias combinations did not match a record'
drop table test
create table test(
CollectionDate date NULL,
CollectionTime [time](0) NULL,
CollectionDateTime as (isnull(convert(datetime,CollectionDate)+convert(datetime,CollectionTime),CollectionDate))
-- if CollectionDate is datetime no need to convert it above
)
insert test (CollectionDate, CollectionTime)
values ('2013-12-10', '22:51:19.227'),
('2013-12-10', null),
(null, '22:51:19.227')
select * from test
CollectionDate CollectionTime CollectionDateTime
2013-12-10 22:51:19 2013-12-10 22:51:19.000
2013-12-10 NULL 2013-12-10 00:00:00.000
NULL 22:51:19 NULL
Try this in your .htaccess:
.htaccess
ErrorDocument 404 http://example.com/404/
ErrorDocument 500 http://example.com/500/
# or map them to one error document:
# ErrorDocument 404 /pages/errors/error_redirect.php
# ErrorDocument 500 /pages/errors/error_redirect.php
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} ^/404/$
RewriteRule ^(.*)$ /pages/errors/404.php [L]
RewriteCond %{REQUEST_URI} ^/500/$
RewriteRule ^(.*)$ /pages/errors/500.php [L]
# or map them to one error document:
#RewriteCond %{REQUEST_URI} ^/404/$ [OR]
#RewriteCond %{REQUEST_URI} ^/500/$
#RewriteRule ^(.*)$ /pages/errors/error_redirect.php [L]
The ErrorDocument
redirects all 404s to a specific URL, all 500s to another url (replace with your domain).
The Rewrite rules map that URL to your actual 404.php script. The RewriteCond regular expressions can be made more generic if you want, but I think you have to explicitly define all ErrorDocument codes you want to override.
Local Redirect:
Change .htaccess ErrorDocument to a file that exists (must exist, or you'll get an error):
ErrorDocument 404 /pages/errors/404_redirect.php
404_redirect.php
<?php
header('Location: /404/');
exit;
?>
Redirect based on error number
Looks like you'll need to specify an ErrorDocument
line in .htaccess for every error you want to redirect (see: Apache ErrorDocument and Apache Custom Error). The .htaccess example above has multiple examples in it. You can use the following as the generic redirect script to replace 404_redirect.php above.
error_redirect.php
<?php
$error_url = $_SERVER["REDIRECT_STATUS"] . '/';
$error_path = $error_url . '.php';
if ( ! file_exists($error_path)) {
// this is the default error if a specific error page is not found
$error_url = '404/';
}
header('Location: ' . $error_url);
exit;
?>
SELECT username FROM all_users ORDER BY username;
gets only the self ip, on the current active wlan[wireless LAN] ie the computer's ip on the (wifi router or network switch).
note: its not the public ip of the device and does not involve any external requests or packages or public apis.
The core idea is to parse the output of shell command: ipconfig
, or ifconfig on linux. we are using subprocess to acquire the output.
def wlan_ip():
import subprocess
result=subprocess.run('ipconfig',stdout=subprocess.PIPE,text=True).stdout.lower()
scan=0
for i in result.split('\n'):
if 'wireless' in i: #use "wireless" or wireless adapters and "ethernet" for wired connections
scan=1
if scan:
if 'ipv4' in i:
return i.split(':')[1].strip()
print(wlan_ip())
we get this output, we captured it in python using subprocess output.
C:\Users\dell>ipconfig
Wireless LAN adapter Wi-Fi:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::f485:4a6a:e7d5:1b1c%4
IPv4 Address. . . . . . . . . . . : 192.168.0.131
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
and we parsed the string in python, in a manner that selects the wireless adapter's ip on current network.
Couldn't find any official documentation (no surprise there) but according to this interesting article, those elements are injected in order to enable Word to convert the HTML back to fully compatible Word document, with everything preserved.
The relevant paragraph:
Microsoft added the special tags to Word's HTML with an eye toward backward compatibility. Microsoft wanted you to be able to save files in HTML complete with all of the tracking, comments, formatting, and other special Word features found in traditional DOC files. If you save a file in HTML and then reload it in Word, theoretically you don't loose anything at all.
This makes lots of sense.
For your specific question.. the o
in the <o:p>
means "Office namespace" so anything following the o:
in a tag means "I'm part of Office namespace" - in case of <o:p>
it just means paragraph, the equivalent of the ordinary <p>
tag.
I assume that every HTML tag has its Office "equivalent" and they have more.
Probably to guarantee that public webservices will be unique.
It always makes me think of delicious deep fried treats...
You can use my code here
//Print Button Event Handeler
private void btnPrint_Click(object sender, EventArgs e)
{
PrintDocument pd = new PrintDocument();
pd.PrintPage += PrintPage;
//here to select the printer attached to user PC
PrintDialog printDialog1 = new PrintDialog();
printDialog1.Document = pd;
DialogResult result = printDialog1.ShowDialog();
if (result == DialogResult.OK)
{
pd.Print();//this will trigger the Print Event handeler PrintPage
}
}
//The Print Event handeler
private void PrintPage(object o, PrintPageEventArgs e)
{
try
{
if (File.Exists(this.ImagePath))
{
//Load the image from the file
System.Drawing.Image img = System.Drawing.Image.FromFile(@"C:\myimage.jpg");
//Adjust the size of the image to the page to print the full image without loosing any part of it
Rectangle m = e.MarginBounds;
if ((double)img.Width / (double)img.Height > (double)m.Width / (double)m.Height) // image is wider
{
m.Height = (int)((double)img.Height / (double)img.Width * (double)m.Width);
}
else
{
m.Width = (int)((double)img.Width / (double)img.Height * (double)m.Height);
}
e.Graphics.DrawImage(img, m);
}
}
catch (Exception)
{
}
}
I'm pretty sure C-style casting syntax works in Objective C, so try that, too:
int myInt = (int) myFloat;
It might silence a compiler warning, at least.
Use the join
method from the Array type.
a.value = [a, b, c, d, e, f];
var stringValueYouWant = a.join();
The join
method will return a string that is the concatenation of all the array elements. It will use the first parameter you pass as a separator - if you don't use one, it will use the default separator, which is the comma.
Are you meaning?
data2 <- data1[good,]
With
data1[good]
you're selecting columns in a wrong way (using a logical vector of complete rows).
Consider that parameter pollutant
is not used; is it a column name that you want to extract? if so it should be something like
data2 <- data1[good, pollutant]
Furthermore consider that you have to rbind
the data.frame
s inside the for
loop, otherwise you get only the last data.frame (its completed.cases)
And last but not least, i'd prefer generating filenames eg with
id <- 1:322
paste0( directory, "/", gsub(" ", "0", sprintf("%3d",id)), ".csv")
A little modified chunk of ?sprintf
The string fmt
(in our case "%3d"
) contains normal characters, which are passed through to the output string, and also conversion specifications which operate on the arguments provided through ...
. The allowed conversion specifications start with a %
and end with one of the letters in the set aAdifeEgGosxX%
. These letters denote the following types:
d
: integerEg a more general example
sprintf("I am %10d years old", 25)
[1] "I am 25 years old"
^^^^^^^^^^
| |
1 10
Main issue is that you first need to set the location of your x and y ticks. Also, it helps to use the more object-oriented interface to matplotlib. Namely, interact with the axes
object directly.
import matplotlib.pyplot as plt
import numpy as np
column_labels = list('ABCD')
row_labels = list('WXYZ')
data = np.random.rand(4,4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data)
# put the major ticks at the middle of each cell, notice "reverse" use of dimension
ax.set_yticks(np.arange(data.shape[0])+0.5, minor=False)
ax.set_xticks(np.arange(data.shape[1])+0.5, minor=False)
ax.set_xticklabels(row_labels, minor=False)
ax.set_yticklabels(column_labels, minor=False)
plt.show()
Hope that helps.
Update a row or column of a table
$update = "UPDATE daily_patients SET queue_status = 'pending' WHERE doctor_id = $room_no and serial_number= $serial_num";
if ($con->query($update) === TRUE) {
echo "Record updated successfully";
} else {
echo "Error updating record: " . $con->error;
}
If someone is sniffing your plain-text HTTP traffic (or cache/cookies) for passwords just turning the password into a hash won't help - The hash password can be "replayed" just as well as plain-text. The client would need to hash the password with something somewhat random (like the date and time) See the section on "AUTH CRAM-MD5" here: http://www.fehcom.de/qmail/smtpauth.html
If you have a unix host within AWS, then use s3cmd from s3tools.org. Set up permissions so that your key as read access to your development bucket. Then run:
s3cmd cp -r s3://productionbucket/feed/feedname/date s3://developmentbucket/feed/feedname
slightly improved version from milosmns...
public static String getPrettyXml(String xml) {
if (xml == null || xml.trim().length() == 0) return "";
int stack = 0;
StringBuilder pretty = new StringBuilder();
String[] rows = xml.trim().replaceAll(">", ">\n").replaceAll("<", "\n<").split("\n");
for (int i = 0; i < rows.length; i++) {
if (rows[i] == null || rows[i].trim().length() == 0) continue;
String row = rows[i].trim();
if (row.startsWith("<?")) {
pretty.append(row + "\n");
} else if (row.startsWith("</")) {
String indent = repeatString(--stack);
pretty.append(indent + row + "\n");
} else if (row.startsWith("<") && row.endsWith("/>") == false) {
String indent = repeatString(stack++);
pretty.append(indent + row + "\n");
if (row.endsWith("]]>")) stack--;
} else {
String indent = repeatString(stack);
pretty.append(indent + row + "\n");
}
}
return pretty.toString().trim();
}
private static String repeatString(int stack) {
StringBuilder indent = new StringBuilder();
for (int i = 0; i < stack; i++) {
indent.append(" ");
}
return indent.toString();
}
To add to Sonz's answer above, following worked for us.
//Instead of
XmlString.Replace("�", "[0x00]");
// use this
XmlString.Replace("\x00", "[0x00]");
You'd use REGEXP_REPLACE
in order to remove all non-digit characters from a string:
select regexp_replace(column_name, '[^0-9]', '')
from mytable;
or
select regexp_replace(column_name, '[^[:digit:]]', '')
from mytable;
Of course you can write a function extract_number
. It seems a bit like overkill though, to write a funtion that consists of only one function call itself.
create function extract_number(in_number varchar2) return varchar2 is
begin
return regexp_replace(in_number, '[^[:digit:]]', '');
end;
<div>{{modal.title | slice: 0: 20}}</div>
Add a class .disabled
and use this CSS:
?.disabled {border: 1px solid #999; color: #333; opacity: 0.5;}
.disabled option {color: #000; opacity: 1;}?
I made a simple (stupid or not) bash script, that extracts the longs from the adb shell, converts them to timestamps and shows it in red.
echo "Please set a search filter"
read search
adb shell dumpsys alarm | grep $search | (while read i; do echo $i; _DT=$(echo $i | grep -Eo 'when\s+([0-9]{10})' | tr -d '[[:alpha:][:space:]]'); if [ $_DT ]; then echo -e "\e[31m$(date -d @$_DT)\e[0m"; fi; done;)
try it ;)
The approach you suggest is not guaranteed to give you the result you're looking for - what if you had a tbody
for example:
<table id="myTable">
<tbody>
<tr>...</tr>
<tr>...</tr>
</tbody>
</table>
You would end up with the following:
<table id="myTable">
<tbody>
<tr>...</tr>
<tr>...</tr>
</tbody>
<tr>...</tr>
</table>
I would therefore recommend this approach instead:
$('#myTable tr:last').after('<tr>...</tr><tr>...</tr>');
You can include anything within the after()
method as long as it's valid HTML, including multiple rows as per the example above.
Update: Revisiting this answer following recent activity with this question. eyelidlessness makes a good comment that there will always be a tbody
in the DOM; this is true, but only if there is at least one row. If you have no rows, there will be no tbody
unless you have specified one yourself.
DaRKoN_ suggests appending to the tbody
rather than adding content after the last tr
. This gets around the issue of having no rows, but still isn't bulletproof as you could theoretically have multiple tbody
elements and the row would get added to each of them.
Weighing everything up, I'm not sure there is a single one-line solution that accounts for every single possible scenario. You will need to make sure the jQuery code tallies with your markup.
I think the safest solution is probably to ensure your table
always includes at least one tbody
in your markup, even if it has no rows. On this basis, you can use the following which will work however many rows you have (and also account for multiple tbody
elements):
$('#myTable > tbody:last-child').append('<tr>...</tr><tr>...</tr>');
You can use this site to find subdomains Find subdomains
This tool will try a zone transfer and also query search engines for list of subdomains.
With jQuery 3.x use something like:
$('<img src="'+ imgPath +'">').on('load', function() {
$(this).width(some).height(some).appendTo('#some_target');
});
you can drop the Constraint which is restricting you. If the column has access to other table. suppose a view is accessing the column which you are altering then it wont let you alter the column unless you drop the view. and after making changes you can recreate the view.
If you can live with limited parallel capablilities, the following solution will work:
private static <T> Stream<T> nonEmptyStream(
Stream<T> stream, Supplier<RuntimeException> e) {
Spliterator<T> it=stream.spliterator();
return StreamSupport.stream(new Spliterator<T>() {
boolean seen;
public boolean tryAdvance(Consumer<? super T> action) {
boolean r=it.tryAdvance(action);
if(!seen && !r) throw e.get();
seen=true;
return r;
}
public Spliterator<T> trySplit() { return null; }
public long estimateSize() { return it.estimateSize(); }
public int characteristics() { return it.characteristics(); }
}, false);
}
Here is some example code using it:
List<String> l=Arrays.asList("hello", "world");
nonEmptyStream(l.stream(), ()->new RuntimeException("No strings available"))
.forEach(System.out::println);
nonEmptyStream(l.stream().filter(s->s.startsWith("x")),
()->new RuntimeException("No strings available"))
.forEach(System.out::println);
The problem with (efficient) parallel execution is that supporting splitting of the Spliterator
requires a thread-safe way to notice whether either of the fragments has seen any value in a thread-safe manner. Then the last of the fragments executing tryAdvance
has to realize that it is the last one (and it also couldn’t advance) to throw the appropriate exception. So I didn’t add support for splitting here.
all(getattr(someTime,x)==getattr(today(),x) for x in ['year','month','day'])
One should compare using .date()
, but I leave this method as an example in case one wanted to, for example, compare things by month or by minute, etc.
Try to change the buildToolsVersion for 23.0.2 in Gradle Script build.gradle (Module App)
and set buildToolsVersion "23.0.2"
then rebuild
Maybe it is sufficient if you wrap a Card
around the Widget
and play a bit with the elevation
prop.
I use this trick to make my ListTile
look nicer in Lists
.
For your code it could look like this:
return Card(
elevation: 3, // PLAY WITH THIS VALUE
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
// ... MORE OF YOUR CODE
],
),
);
Now we've got CSS grid. Welcome to 2019.
/* Required */_x000D_
body {_x000D_
margin: 0;_x000D_
height: 100%;_x000D_
}_x000D_
_x000D_
#wrapper {_x000D_
height: 100vh;_x000D_
display: grid;_x000D_
grid-template-rows: 30px 1fr 30px;_x000D_
}_x000D_
_x000D_
#content {_x000D_
overflow-y: scroll;_x000D_
}_x000D_
_x000D_
/* Optional */_x000D_
#wrapper > * {_x000D_
padding: 5px;_x000D_
}_x000D_
_x000D_
#header {_x000D_
background-color: #ff0000ff;_x000D_
}_x000D_
_x000D_
#content {_x000D_
background-color: #00ff00ff;_x000D_
}_x000D_
_x000D_
#footer {_x000D_
background-color: #0000ffff;_x000D_
}
_x000D_
<body>_x000D_
<div id="wrapper">_x000D_
<div id="header">Header Content</div>_x000D_
<div id="content">_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum._x000D_
</div>_x000D_
<div id="footer">Footer Content</div>_x000D_
</div>_x000D_
</body>
_x000D_
Generally to count distinct values in single column, you can use Series.value_counts
:
df.domain.value_counts()
#'vk.com' 5
#'twitter.com' 2
#'facebook.com' 1
#'google.com' 1
#Name: domain, dtype: int64
To see how many unique values in a column, use Series.nunique
:
df.domain.nunique()
# 4
To get all these distinct values, you can use unique
or drop_duplicates
, the slight difference between the two functions is that unique
return a numpy.array
while drop_duplicates
returns a pandas.Series
:
df.domain.unique()
# array(["'vk.com'", "'twitter.com'", "'facebook.com'", "'google.com'"], dtype=object)
df.domain.drop_duplicates()
#0 'vk.com'
#2 'twitter.com'
#4 'facebook.com'
#6 'google.com'
#Name: domain, dtype: object
As for this specific problem, since you'd like to count distinct value with respect to another variable, besides groupby
method provided by other answers here, you can also simply drop duplicates firstly and then do value_counts()
:
import pandas as pd
df.drop_duplicates().domain.value_counts()
# 'vk.com' 3
# 'twitter.com' 2
# 'facebook.com' 1
# 'google.com' 1
# Name: domain, dtype: int64
Don't use str() method directly in html instead use with y=x|string()
<div class="row">
{% for x in range(photo_upload_count) %}
{% with y=x|string() %}
<div col-md-4 >
<div class="col-md-12">
<div class="card card-primary " style="border:1px solid #000">
<div class="card-body">
{% if data['profile_photo']!= None: %}
<img class="profile-user-img img-responsive" src="{{ data['photo_'+y] }}" width="200px" alt="User profile picture">
{% else: %}
<img class="profile-user-img img-responsive" src="static/img/user.png" width="200px" alt="User profile picture">
{% endif %}
</div>
<div class="card-footer text-center">
<a href="{{value}}edit_photo/{{ 'photo_'+y }}" class="btn btn-primary">Edit</a>
</div>
</div>
</div>
</div>
{% endwith %}
{% endfor %}
</div>
FROM openjdk:8-jdk-alpine
RUN apk update && apk add wget openssl lsof procps curl
RUN apk update
RUN mkdir -p /apps/agent
RUN mkdir -p /apps/lib
ADD ./app/agent /apps/agent
ADD ./app/lib /apps/lib
ADD ./app/* /apps/app/
RUN ls -lrt /apps/app/
CMD sh /apps/app/launch.sh
by using DockerFile, I'm copying agent and lib directories to /apps/agent,/apps/lib directories and bunch of files to target.
I wrote xdpyprobe program which is intended for this purpose. Unlike xset, xdpyinfo and other general tools, it does not do any extra actions (just checks X server and exits) and it may not produce any output (if "-q" option is specified).
@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
SET old=Vacation2010
SET new=December
for /f "tokens=*" %%f in ('dir /b *.jpg') do (
SET newname=%%f
SET newname=!newname:%old%=%new%!
move "%%f" "!newname!"
)
What this does is it loops over all .jpg files in the folder where the batch file is located and replaces the Vacation2010 with December inside the filenames.
Agile and Scrum are terms used in project management. The Agile methodology employs incremental and iterative work beats that are also called sprints. Scrum, on the other hand is the type of agile approach that is used in software development.
Agile is the practice and Scrum is the process to following this practice same as eXtreme Programming (XP) and Kanban are the alternative process to following Agile development practice.
I had precisely this problem, but I needed sequential plots to have highly contrasting color. I was also doing plots with a common sub-plot containing reference data, so I wanted the color sequence to be consistently repeatable.
I initially tried simply generating colors randomly, reseeding the RNG before each plot. This worked OK (commented-out in code below), but could generate nearly indistinguishable colors. I wanted highly contrasting colors, ideally sampled from a colormap containing all colors.
I could have as many as 31 data series in a single plot, so I chopped the colormap into that many steps. Then I walked the steps in an order that ensured I wouldn't return to the neighborhood of a given color very soon.
My data is in a highly irregular time series, so I wanted to see the points and the lines, with the point having the 'opposite' color of the line.
Given all the above, it was easiest to generate a dictionary with the relevant parameters for plotting the individual series, then expand it as part of the call.
Here's my code. Perhaps not pretty, but functional.
from matplotlib import cm
cmap = cm.get_cmap('gist_rainbow') #('hsv') #('nipy_spectral')
max_colors = 31 # Constant, max mumber of series in any plot. Ideally prime.
color_number = 0 # Variable, incremented for each series.
def restart_colors():
global color_number
color_number = 0
#np.random.seed(1)
def next_color():
global color_number
color_number += 1
#color = tuple(np.random.uniform(0.0, 0.5, 3))
color = cmap( ((5 * color_number) % max_colors) / max_colors )
return color
def plot_args(): # Invoked for each plot in a series as: '**(plot_args())'
mkr = next_color()
clr = (1 - mkr[0], 1 - mkr[1], 1 - mkr[2], mkr[3]) # Give line inverse of marker color
return {
"marker": "o",
"color": clr,
"mfc": mkr,
"mec": mkr,
"markersize": 0.5,
"linewidth": 1,
}
My context is JupyterLab and Pandas, so here's sample plot code:
restart_colors() # Repeatable color sequence for every plot
fig, axs = plt.subplots(figsize=(15, 8))
plt.title("%s + T-meter"%name)
# Plot reference temperatures:
axs.set_ylabel("°C", rotation=0)
for s in ["T1", "T2", "T3", "T4"]:
df_tmeter.plot(ax=axs, x="Timestamp", y=s, label="T-meter:%s" % s, **(plot_args()))
# Other series gets their own axis labels
ax2 = axs.twinx()
ax2.set_ylabel(units)
for c in df_uptime_sensors:
df_uptime[df_uptime["UUID"] == c].plot(
ax=ax2, x="Timestamp", y=units, label="%s - %s" % (units, c), **(plot_args())
)
fig.tight_layout()
plt.show()
The resulting plot may not be the best example, but it becomes more relevant when interactively zoomed in.
Use
for /r path %%var in (*.*) do some_command %%var
with:
edit (not by the author): There is a comprehensive list of IoC frameworks available at https://github.com/quozd/awesome-dotnet/blob/master/README.md#ioc:
Original answer follows.
I suppose I might be being a bit picky here but it's important to note that DI (Dependency Injection) is a programming pattern and is facilitated by, but does not require, an IoC (Inversion of Control) framework. IoC frameworks just make DI much easier and they provide a host of other benefits over and above DI.
That being said, I'm sure that's what you were asking. About IoC Frameworks; I used to use Spring.Net and CastleWindsor a lot, but the real pain in the behind was all that pesky XML config you had to write! They're pretty much all moving this way now, so I have been using StructureMap for the last year or so, and since it has moved to a fluent config using strongly typed generics and a registry, my pain barrier in using IoC has dropped to below zero! I get an absolute kick out of knowing now that my IoC config is checked at compile-time (for the most part) and I have had nothing but joy with StructureMap and its speed. I won't say that the others were slow at runtime, but they were more difficult for me to setup and frustration often won the day.
Update
I've been using Ninject on my latest project and it has been an absolute pleasure to use. Words fail me a bit here, but (as we say in the UK) this framework is 'the Dogs'. I would highly recommend it for any green fields projects where you want to be up and running quickly. I got all I needed from a fantastic set of Ninject screencasts by Justin Etheredge. I can't see that retro-fitting Ninject into existing code being a problem at all, but then the same could be said of StructureMap in my experience. It'll be a tough choice going forward between those two, but I'd rather have competition than stagnation and there's a decent amount of healthy competition out there.
Other IoC screencasts can also be found here on Dimecasts.
As far as i know %d
means decadic which is number without decimal point. if you want to load double value, use %lf
conversion (long float). for printf your values are wrong for same reason, %d
is used only for integer (and possibly chars if you know what you are doing) numbers.
Example:
double a,b;
printf("--------\n"); //seperate lines
scanf("%lf",&a);
printf("--------\n");
scanf("%lf",&b);
printf("%lf %lf",a,b);
An improved solution with filtering possibilities. This result is more convenient as you can refer any object property directly with array paths like:
["aProperty.aSetting1", "aProperty.aSetting2", "aProperty.aSetting3", "aProperty.aSetting4", "aProperty.aSetting5", "bProperty.bSetting1.bPropertySubSetting", "bProperty.bSetting2", "cProperty.cSetting"]
/**
* Recursively searches for properties in a given object.
* Ignores possible prototype endless enclosures.
* Can list either all properties or filtered by key name.
*
* @param {Object} object Object with properties.
* @param {String} key Property key name to search for. Empty string to
* get all properties list .
* @returns {String} Paths to properties from object root.
*/
function getPropertiesByKey(object, key) {
var paths = [
];
iterate(
object,
"");
return paths;
/**
* Single object iteration. Accumulates to an outer 'paths' array.
*/
function iterate(object, path) {
var chainedPath;
for (var property in object) {
if (object.hasOwnProperty(property)) {
chainedPath =
path.length > 0 ?
path + "." + property :
path + property;
if (typeof object[property] == "object") {
iterate(
object[property],
chainedPath,
chainedPath);
} else if (
property === key ||
key.length === 0) {
paths.push(
chainedPath);
}
}
}
return paths;
}
}
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="1" >
<TableRow
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<RadioGroup
android:layout_width="fill_parent"
android:layout_height="match_parent" >
<RadioButton
android:id="@+id/butonSecim1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_weight=".50"
android:text="@string/buton1Text" />
<RadioButton
android:id="@+id/butonSecim2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_weight=".50"
android:text="@string/buton2Text" />
</RadioGroup>
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TableLayout
android:id="@+id/bilgiAlani"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:visibility="invisible" >
<TableRow
android:id="@+id/BilgiAlanitableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/bilgiMesaji"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight=".100"
android:ems="10"
android:gravity="left|top"
android:inputType="textMultiLine" />
</TableRow>
</TableLayout>
</TableRow>
<TableRow
android:id="@+id/tableRow3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/metin4"
android:layout_height="match_parent"
android:layout_weight=".100"
android:text="deneme" />
</TableRow>
<TableRow
android:id="@+id/tableRow4"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/metin5"
android:layout_height="match_parent"
android:layout_weight=".100"
android:text="deneme" />
</TableRow>
</TableLayout>
</ScrollView>
Does this do what you want?
p <- ggplot(myData, aes(foo, bar)) + geom_whateverGeomYouWant(more = options) +
p + scale_x_continuous(expand=c(0,0)) +
scale_y_continuous(expand=c(0,0)) +
opts(legend.position = "none")
Google has a specific API for this: https://developers.google.com/maps/documentation/timezone/
eg: https://maps.googleapis.com/maps/api/timezone/json?location=40.704822,-74.0137431×tamp=0
{
dstOffset: 0,
rawOffset: -18000,
status: "OK",
timeZoneId: "America/New_York",
timeZoneName: "Eastern Standard Time"
}
They require a unix timestamp on the querystring. From the response returned it appears that timeZoneName
takes into account daylight savings, based on the timestamp, while timeZoneId
is a DST-independent name for the timezone.
For my use, in Python, I am just passing timestamp=0
and using the timeZoneId
value to get a tz_info
object from pytz, I can then use that to localize any particular datetime in my own code.
I believe for PHP similarly you can find "America/New_York" in http://pecl.php.net/package/timezonedb
Android Studio -> Device File Explorer (right bottom corner) -> data -> data -> {package.id} -> shared-prefs
Note: You need to connect mobile device to android studio and selected application should be in debug mode
This error occurred when I attempted to install ctds on CentOS 7 with Python3.6. I did all the tricks mentioned here including yum install python34-devel
. The problem was Python.h
was found in /usr/include/python3.4m but not in /usr/include/python3.6m
. I tried to use --global-option
to point to include dir (pip3.6 install --global-option=build_ext --global-option="--include-dirs=/usr/include/python3.4m" ctds
). This resulted in a lpython3.6m
not found when linking ctds.
Finally what worked was fixing the development environment for Python3.6 needs to correct with the include and libs.
yum -y install https://dl.iuscommunity.org/pub/ius/stable/CentOS/7/x86_64/python36u-libs-3.6.3-1.ius.centos7.x86_64.rpm
Python.h needs to be in your include path for gcc. Whichever version of python is used, for example if it's 3.6, then it should be in /usr/include/python3.6m/Python.h
typically.
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;
public class IpAddress {
NetworkInterface ifcfg;
Enumeration<InetAddress> addresses;
String address;
public String getIpAddress(String host) {
try {
ifcfg = NetworkInterface.getByName(host);
addresses = ifcfg.getInetAddresses();
while (addresses.hasMoreElements()) {
address = addresses.nextElement().toString();
address = address.replace("/", "");
}
} catch (Exception e) {
e.printStackTrace();
}
return ifcfg.toString();
}
}
Maybe
if (inventory.contains("bread") && !inventory.contains("water"))
Or
if (inventory.contains("bread")) {
if (!inventory.contains("water")) {
// do something here
}
}
Simple example to achieve the below:
ApplicationDbContext forumDB = new ApplicationDbContext();
MonitorDbContext monitor = new MonitorDbContext();
Just scope the properties in the main context: (used to create and maintain the DB) Note: Just use protected: (Entity is not exposed here)
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext()
: base("QAForum", throwIfV1Schema: false)
{
}
protected DbSet<Diagnostic> Diagnostics { get; set; }
public DbSet<Forum> Forums { get; set; }
public DbSet<Post> Posts { get; set; }
public DbSet<Thread> Threads { get; set; }
public static ApplicationDbContext Create()
{
return new ApplicationDbContext();
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
}
}
MonitorContext: Expose separate Entity here
public class MonitorDbContext: DbContext
{
public MonitorDbContext()
: base("QAForum")
{
}
public DbSet<Diagnostic> Diagnostics { get; set; }
// add more here
}
Diagnostics Model:
public class Diagnostic
{
[Key]
public Guid DiagnosticID { get; set; }
public string ApplicationName { get; set; }
public DateTime DiagnosticTime { get; set; }
public string Data { get; set; }
}
If you like you could mark all entities as protected inside the main ApplicationDbContext, then create additional contexts as needed for each separation of schemas.
They all use the same connection string, however they use separate connections, so do not cross transactions and be aware of locking issues. Generally your designing separation so this shouldn't happen anyway.
Try This
private String getFilename() {
String filepath = Environment.getExternalStorageDirectory().getPath();
File file = new File(filepath + "/AudioRecorder" );
if (!file.exists()) {
file.mkdirs();
}
return (file.getAbsolutePath() + "/" + System.currentTimeMillis() + ".mp4");
}
Open a TCP socket on port 80, start listening for new connections, implement this. Depending on your purposes, you can ignore almost everything. At the easiest, you can send the same response for every request, which just involves writing text to the socket.
Although I would probably only use this method if I absolutely required the best possible performance (e.g. for writing some sort of board game AI involving bitboards), the most efficient solution is to use inline ASM. See the Optimisations section of this blog post for code with an explanation.
[...], the
bsrl
assembly instruction computes the position of the most significant bit. Thus, we could use thisasm
statement:asm ("bsrl %1, %0" : "=r" (position) : "r" (number));
You can solve it using dictionary
to_modify = [5,4,3,2,1,0]
indexes = [0,1,3,5]
replacements = [0,0,0,0]
dic = {}
for i in range(len(indexes)):
dic[indexes[i]]=replacements[i]
print(dic)
for index, item in enumerate(to_modify):
for i in indexes:
to_modify[i]=dic[i]
print(to_modify)
The output will be
{0: 0, 1: 0, 3: 0, 5: 0}
[0, 0, 3, 0, 1, 0]
Here is a solution I made using the above ideas that can be used for TextBoxFor and PasswordFor:
public static class HtmlHelperEx
{
public static MvcHtmlString TextBoxWithPlaceholderFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, TProperty>> expression, object htmlAttributes)
{
var metadata = ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData);
return htmlHelper.TextBoxFor(expression, htmlAttributes.AddAttribute("placeholder", metadata.Watermark));
}
public static MvcHtmlString PasswordWithPlaceholderFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, TProperty>> expression, object htmlAttributes)
{
var metadata = ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData);
return htmlHelper.PasswordFor(expression, htmlAttributes.AddAttribute("placeholder", metadata.Watermark));
}
}
public static class HtmlAttributesHelper
{
public static IDictionary<string, object> AddAttribute(this object htmlAttributes, string name, object value)
{
var dictionary = htmlAttributes == null ? new Dictionary<string, object>() : htmlAttributes.ToDictionary();
if (!String.IsNullOrWhiteSpace(name) && value != null && !String.IsNullOrWhiteSpace(value.ToString()))
dictionary.Add(name, value);
return dictionary;
}
public static IDictionary<string, object> ToDictionary(this object obj)
{
return TypeDescriptor.GetProperties(obj)
.Cast<PropertyDescriptor>()
.ToDictionary(property => property.Name, property => property.GetValue(obj));
}
}
For me, this works only Steps for MIUI 9 and Above:
Settings -> Additional Settings -> Developer options ->
Turn off "MIUI optimization" and Restart
Turn On "USB Debugging"
Turn On "Install via USB"
Set USB Configuration to Charging
MTP(Media Transfer Protocol) is the default mode. Works even in MTP in some cases
Try This :) I created my on model of count all results
in library_model
function count_all_results($column_name = array(),$where=array(), $table_name = array())
{
$this->db->select($column_name);
// If Where is not NULL
if(!empty($where) && count($where) > 0 )
{
$this->db->where($where);
}
// Return Count Column
return $this->db->count_all_results($table_name[0]);//table_name array sub 0
}
Your Controller will look like this
public function my_method()
{
$data = array(
$countall = $this->model->your_method_model()
);
$this->load->view('page',$data);
}
Then Simple Call The Library Model In Your Model
function your_method_model()
{
return $this->library_model->count_all_results(
['id'],
['where],
['table name']
);
}
You can use the following regex to get integer and floating values from a string:
re.findall(r'[\d\.\d]+', 'hello -34 42 +34.478m 88 cricket -44.3')
['34', '42', '34.478', '88', '44.3']
Thanks Rex
Link with -static. When you link with -static the linker embeds the library inside the executable, so the executable will be bigger, but it can be executed on a system with an older version of glibc because the program will use it's own library instead of that of the system.
When I'm in my work place with terminal only, I use:
git log --oneline --graph --color --all --decorate
When the OS support GUI, I use:
gitk --all
When I'm in my home Windows PC, I use my own GitVersionTree
Create the symlink to latest version
ln -s -f /usr/local/bin/python3.8 /usr/local/bin/python
Close and open a new terminal
and try
python --version
IE 7 on windows8 with bootstrap 3.0.0.
.navbar {
position: static;
}
.navbar .nav > li {
z-index: 1001;
}
fixed
size_t should be defined in your standard library's headers. In my experience, it usually is simply a typedef to unsigned int. The point, though, is that it doesn't have to be. Types like size_t allow the standard library vendor the freedom to change its underlying data types if appropriate for the platform. If you assume size_t is always unsigned int (via casting, etc), you could run into problems in the future if your vendor changes size_t to be e.g. a 64-bit type. It is dangerous to assume anything about this or any other library type for this reason.
Putting simple, Androids Context
is a mess that you won't love until you stop worrying about.
Android Context
s are:
God-objects.
Thing that you want to pass around all your application when you are starting developing for Android, but will avoid doing it when you get a little bit closer to programming, testing and Android itself.
Unclear dependency.
Common source of memory leaks.
PITA for testing.
Actual context used by Android system to dispatch permissions, resources, preferences, services, broadcasts, styles, showing dialogs and inflating layout. And you need different Context
instances for some separate things (obviously, you can't show a dialog from an application or service context; layouts inflated from application and activity contexts may differ).
You can use the a stringstream from the C++ standard libraray:
stringstream ss(str);
int x;
ss >> x;
if(ss) { // <-- error handling
// use x
} else {
// not a number
}
The stream state will be set to fail if a non-digit is encountered when trying to read an integer.
See Stream pitfalls for pitfalls of errorhandling and streams in C++.
I'd suggest:
document.querySelector('.rateRecipe.btns-one-small').click();
The above code assumes that the given element has both of those classes; otherwise, if the space is meant to imply an ancestor-descendant relationship:
document.querySelector('.rateRecipe .btns-one-small').click();
The method getElementsByClassName()
takes a single class-name (rather than document.querySelector()
/document.querySelectorAll()
, which take a CSS selector), and you passed two (presumably class-names) to the method.
References:
Replace the dependency in the POM.xml file
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.2.3</version>
</dependency>
By the dependency
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
</dependency>
Multi-Line Comment in VS Code
To comment the code select the lines and hit: Alt + Shift + A
To Uncomment select the commented code and hit: Alt + Shift + A
Try This
var data = 'allow~5';
var result=data.split('~');
RESULT
alert(result[0]);
Appearently Browsers still have troubles (although Chrome and Firefox Nightly do fine). I have a hacky approach for the people that really have to use a number field (maybe because of the little arrows that text fields dont have).
I added a keyup
event Handler to the form input and tracked the state and set the value once it comes valid again.
var currentString = '';_x000D_
var badState = false;_x000D_
var lastCharacter = null;_x000D_
_x000D_
document.getElementById("field").addEventListener("keyup",($event) => {_x000D_
if ($event.target.value && !$event.target.validity.badInput) {_x000D_
currentString = $event.target.value;_x000D_
} else if ($event.target.validity.badInput) {_x000D_
if (badState && lastCharacter && lastCharacter.match(/[\.,]/) && !isNaN(+$event.key)) {_x000D_
$event.target.value = ((+currentString) + (+$event.key / 10));_x000D_
badState = false;_x000D_
} else {_x000D_
badState = true;_x000D_
}_x000D_
}_x000D_
document.getElementById("number").textContent = $event.target.value;_x000D_
lastCharacter = $event.key;_x000D_
});_x000D_
_x000D_
document.getElementById("field").addEventListener("blur",($event) => {_x000D_
if (badState) {_x000D_
$event.target.value = (+currentString);_x000D_
badState = false;_x000D_
document.getElementById("number").textContent = $event.target.value;_x000D_
}_x000D_
});
_x000D_
#result{_x000D_
padding: 10px;_x000D_
background-color: orange;_x000D_
font-size: 25px;_x000D_
width: 400px;_x000D_
margin-top: 10px;_x000D_
display: inline-block;_x000D_
}_x000D_
_x000D_
#field{_x000D_
padding: 5px;_x000D_
border-radius: 5px;_x000D_
border: 1px solid grey;_x000D_
width: 400px;_x000D_
}
_x000D_
<input type="number" id="field" keyup="keyUpFunction" step="0.01" placeholder="Field for both comma separators">_x000D_
_x000D_
<span id="result" >_x000D_
<span >Current value: </span>_x000D_
<span id="number"></span>_x000D_
</span>
_x000D_
@Directive({_x000D_
selector: '[appFloatHelper]'_x000D_
})_x000D_
export class FloatHelperDirective {_x000D_
private currentString = '';_x000D_
private badState = false;_x000D_
private lastCharacter: string = null;_x000D_
_x000D_
@HostListener("blur", ['$event']) onBlur(event) {_x000D_
if (this.badState) {_x000D_
this.model.update.emit((+this.currentString));_x000D_
this.badState = false;_x000D_
}_x000D_
}_x000D_
_x000D_
constructor(private renderer: Renderer2, private el: ElementRef, private change: ChangeDetectorRef, private zone: NgZone, private model: NgModel) {_x000D_
this.renderer.listen(this.el.nativeElement, 'keyup', (e: KeyboardEvent) => {_x000D_
if (el.nativeElement.value && !el.nativeElement.validity.badInput) {_x000D_
this.currentString = el.nativeElement.value;_x000D_
} else if (el.nativeElement.validity.badInput) {_x000D_
if (this.badState && this.lastCharacter && this.lastCharacter.match(/[\.,]/) && !isNaN(+e.key)) {_x000D_
model.update.emit((+this.currentString) + (+e.key / 10));_x000D_
el.nativeElement.value = (+this.currentString) + (+e.key / 10);_x000D_
this.badState = false;_x000D_
} else {_x000D_
this.badState = true;_x000D_
}_x000D_
} _x000D_
this.lastCharacter = e.key;_x000D_
});_x000D_
}_x000D_
_x000D_
}
_x000D_
<input type="number" matInput placeholder="Field for both comma separators" appFloatHelper [(ngModel)]="numberModel">
_x000D_
Change your Method as following and check it will work
private void initViews() {
inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.id_number_edit_text_custom, this, true);
View view = (View) inflater.inflate(R.layout.main, null);
editText = (EditText) view.findViewById(R.id.id_number_custom);
loadButton = (ImageButton) view.findViewById(R.id.load_data_button);
loadButton.setVisibility(RelativeLayout.INVISIBLE);
loadData();
}
HttpURLConnection
has a setConnectTimeout method.
Just set the timeout to 5000 milliseconds, and then catch java.net.SocketTimeoutException
Your code should look something like this:
try {
HttpURLConnection.setFollowRedirects(false);
HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
con.setRequestMethod("HEAD");
con.setConnectTimeout(5000); //set timeout to 5 seconds
return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
} catch (java.net.SocketTimeoutException e) {
return false;
} catch (java.io.IOException e) {
return false;
}
It can be done simply by using the following codes inside onCreate. By using android's default layout
Snackbar.make(findViewById(android.R.id.content),"Your Message",Snackbar.LENGTH_LONG).show();
Back to Jonathan002's original question about
"... what version supports the new ES6 import statements?"
based on the article by Dr. Axel Rauschmayer, there is a plan to have it supported by default (without the experimental command line flag) in Node.js 10.x LTS. According to node.js's release plan as it is on 3/29, 2018, it's likely to become available after Apr 2018, while LTS of it will begin on October 2018.
function load_tpl(selected=""){
$("#load_tpl").empty();
for(x in ds_tpl){
$("#load_tpl").append('<li><a id="'+ds_tpl[x]+'" href="#" >'+ds_tpl[x]+'</a></li>');
}
$.each($("#load_tpl a"),function(){
$(this).on("click",function(e){
alert(e.target.id);
});
});
}
If your date column is a string of the format '2017-01-01' you can use pandas astype to convert it to datetime.
df['date'] = df['date'].astype('datetime64[ns]')
or use datetime64[D] if you want Day precision and not nanoseconds
print(type(df_launath['date'].iloc[0]))
yields
<class 'pandas._libs.tslib.Timestamp'>
the same as when you use pandas.to_datetime
You can try it with other formats then '%Y-%m-%d' but at least this works.
In case you have to deal with the arguably unfriendly logs
client (CloudWatch Logs put-log-events
), this is what I had to do to properly catch Boto3 client exceptions:
try:
### Boto3 client code here...
except boto_exceptions.ClientError as error:
Log.warning("Catched client error code %s",
error.response['Error']['Code'])
if error.response['Error']['Code'] in ["DataAlreadyAcceptedException",
"InvalidSequenceTokenException"]:
Log.debug(
"Fetching sequence_token from boto error response['Error']['Message'] %s",
error.response["Error"]["Message"])
# NOTE: apparently there's no sequenceToken attribute in the response so we have
# to parse response["Error"]["Message"] string
sequence_token = error.response["Error"]["Message"].split(":")[-1].strip(" ")
Log.debug("Setting sequence_token to %s", sequence_token)
This works both at first attempt (with empty LogStream) and subsequent ones.
I found one interesting site which seems pretty detailed on how you could setup a ubuntu for iPhone development. But it's a little old from November 2008 for the SDK 2.0.
Ubuntu 8.10 for iPhone open toolchain SDK2.0
The instructions also include something about the Android SDK/Emulator which you can leave out.
sed -i '/pattern/d' file
Use 'd' to delete a line. This works at least with GNU-Sed.
If your Sed doesn't have the option, to change a file in place, maybe you can use an intermediate file, to store the modification:
sed '/pattern/d' file > tmpfile && mv tmpfile file
Writing directly to the source usually doesn't work: sed '/pattern/d' file > file
so make a copy before trying out, if you doubt it.
you need to convert to char first because converting to int adds those days to 1900-01-01
select CONVERT (datetime,convert(char(8),rnwl_efctv_dt ))
here are some examples
select CONVERT (datetime,5)
1900-01-06 00:00:00.000
select CONVERT (datetime,20100101)
blows up, because you can't add 20100101 days to 1900-01-01..you go above the limit
convert to char first
declare @i int
select @i = 20100101
select CONVERT (datetime,convert(char(8),@i))
Just in case you were not able to accomplish the above code, here is a simple way of using it with jquery:
$.getJSON("http://www.geoplugin.net/json.gp?jsoncallback=?",
function (data) {
for (var i in data) {
document.write('data["i"] = ' + i + '<br/>');
}
}
);
The T
doesn't really stand for anything. It is just the separator that the ISO 8601 combined date-time format requires. You can read it as an abbreviation for Time.
The Z
stands for the Zero timezone, as it is offset by 0 from the Coordinated Universal Time (UTC).
Both characters are just static letters in the format, which is why they are not documented by the datetime.strftime()
method. You could have used Q
or M
or Monty Python
and the method would have returned them unchanged as well; the method only looks for patterns starting with %
to replace those with information from the datetime
object.
I do the following, handles any overflows:
var totalPages = totalResults.IsDivisble(recordsperpage) ? totalResults/(recordsperpage) : totalResults/(recordsperpage) + 1;
And use this extension for if there's 0 results:
public static bool IsDivisble(this int x, int n)
{
return (x%n) == 0;
}
Also, for the current page number (wasn't asked but could be useful):
var currentPage = (int) Math.Ceiling(recordsperpage/(double) recordsperpage) + 1;
I have resolved it by adding below line in my context:
modelBuilder.Entity<YourObject>().Property(e => e.YourColumn).HasMaxLength(4000);
Somehow, [MaxLength]
didn't work for me.