As expansion of @ctrlplusb answer,
I would suggest you to also take a look to the env-dot-prop
package.
It allows you to set/get properties from process.env
using a dot-path
.
Let's assume that your process.env
contains the following:
process.env = {
FOO_BAR: 'baz'
'FOO_': '42'
}
Then you can manipulate the environment variables like that:
const envDotProp = require('env-dot-prop');
console.log(process.env);
//=> {FOO_BAR: 'baz', 'FOO_': '42'}
envDotProp.get('foo');
//=> {bar: 'baz', '': '42'}
envDotProp.get('foo.');
//=> '42'
envDotProp.get('foo.', {parse: true});
//=> 42
envDotProp.set('baz.foo', 'bar');
envDotProp.get('', {parse: true});
//=> {foo: {bar: 'baz', '': 42}, baz: {foo: 'bar'}}
console.log(process.env);
//=> {FOO_BAR: 'baz', 'FOO_': '42', BAZ_FOO: 'bar'}
envDotProp.delete('foo');
envDotProp.get('');
//=> {baz: {foo: 'bar'}}
console.log(process.env);
//=> {BAZ_FOO: 'bar'}
This helps you to parse the environment variables and use them as a config object in your app.
It also helps you implement a 12-factor configuration.
We can mock list properly for foreach loop. Please find below code snippet and explanation.
This is my actual class method where I want to create test case by mocking list.
this.nameList
is a list object.
public void setOptions(){
// ....
for (String str : this.nameList) {
str = "-"+str;
}
// ....
}
The foreach loop internally works on iterator, so here we crated mock of iterator.
Mockito framework has facility to return pair of values on particular method call by using Mockito.when().thenReturn()
, i.e. on hasNext()
we pass 1st true and on second call false, so that our loop will continue only two times. On next()
we just return actual return value.
@Test
public void testSetOptions(){
// ...
Iterator<SampleFilter> itr = Mockito.mock(Iterator.class);
Mockito.when(itr.hasNext()).thenReturn(true, false);
Mockito.when(itr.next()).thenReturn(Mockito.any(String.class);
List mockNameList = Mockito.mock(List.class);
Mockito.when(mockNameList.iterator()).thenReturn(itr);
// ...
}
In this way we can avoid sending actual list to test by using mock of list.
I got a does not exist error
Here is how I make it works:
adb shell pm list packages -f | findstr zalo
package:/data/app/com.zing.zalo-1/base.apk=com.zing.zalo
adb shell
mido:/ $ cp /data/app/com.zing.zalo-1/base.apk /sdcard/zalo.apk
mido:/ $ exit
adb pull /sdcard/zalo.apk Desktop
/sdcard/zalo.apk: 1 file pulled. 7.7 MB/s (41895394 bytes in 5.200s)
you can define it like this :
let table = $('.datatable-sales').DataTable({
processing: true,
responsive: true,
serverSide: true,
ajax: {
url: "<?php echo site_url("your url"); ?>",
cache: false,
type: "POST",
data: {
<?php echo your api; ?>,
}
}
or like this :
$.get({url: <?php echo json_encode(site_url('your api'))?>, cache: false})
hope it helps
You can change the class of the entire table and use the cascade in the CSS: http://jsbin.com/oyunuy/1/
I want to be able to close an alert box automatically using javascript after a certain amount of time or on a specific event (i.e. onkeypress)
A sidenote: if you have an Alert("data"), you won't be able to keep code running in background (AFAIK)... . the dialog box is a modal window, so you can't lose focus too. So you won't have any keypress or timer running...
With formatting
require 'json'
tempHash = {
"key_a" => "val_a",
"key_b" => "val_b"
}
File.open("public/temp.json","w") do |f|
f.write(JSON.pretty_generate(tempHash))
end
Output
{
"key_a":"val_a",
"key_b":"val_b"
}
I usually use the -p
flag with a git checkout from the other branch which I find easier and more granular than most other methods I have come across.
In principle:
git checkout <other_branch_name> <files/to/grab in/list/separated/by/spaces> -p
example:
git checkout mybranch config/important.yml app/models/important.rb -p
You then get a dialog asking you which changes you want in "blobs" this pretty much works out to every chunk of continuous code change which you can then signal y
(Yes) n
(No) etc for each chunk of code.
The -p
or patch
option works for a variety of commands in git including git stash save -p
which allows you to choose what you want to stash from your current work
I sometimes use this technique when I have done a lot of work and would like to separate it out and commit in more topic based commits using git add -p
and choosing what I want for each commit :)
I Encounter this problem before. I suspect that is some of ur cells are link towards other sheet, which the other sheets is returning #NAME? which ends up the current sheets is not working on calculation.
Try solve ur other sheets that is linked
I prefer to use something like Lodash:
import { pickBy, identity } from 'lodash'
const cleanedObject = pickBy(originalObject, identity)
Note that the identity function is just x => x
and its result will be false for all falsy values. So this removes undefined, "", 0, null, ...
If you only want the undefined
values removed you can do this:
const cleanedObject = pickBy(originalObject, v => v !== undefined)
It gives you a new object, which is usually preferable over mutating the original object like some of the other answers suggest.
You cannot put spaces around the =
sign when you do:
export foo=bar
Remove the spaces you have and you should be good to go.
If you type:
export foo = bar
the shell will interpret that as a request to export three names: foo
, =
and bar
. =
isn't a valid variable name, so the command fails. The variable name, equals sign and it's value must not be separated by spaces for them to be processed as a simultaneous assignment and export.
Try this new css and markup
Here is modified HTML:
<div class="product_container">
<div class="products" id="products">
<div id="product_15" class="products_box">
<img src="/images/ecommerce/card_default.png">
<div class="price">R$ 0,01</div>
</div>
<div id="product_15" class="products_box">
<img src="/images/ecommerce/card_default.png">
<div class="price">R$ 0,01</div>
</div>
<div id="product_15" class="products_box">
<img src="/images/ecommerce/card_default.png">
<div class="price">R$ 0,01</div>
</div>
</div>
And here is modified CSS:
<pre>
.product_container
{
text-align: center;
height: 150px;
}
.products {
left: 50%;
height:35px;
float:left;
position: relative;
margin: 0 auto;
width:auto;
}
.products .products_box
{
width:auto;
height:auto;
float:left;
right: 50%;
position: relative;
}
.price {
margin: 6px 2px;
width: 137px;
color: #666;
font-size: 14pt;
font-style: normal;
border: 1px solid #CCC;
background-color: #EFEFEF;
}
Make simple:
@GetMapping("/health")
public ResponseEntity<String> healthCheck() {
LOG.info("REST request health check");
return new ResponseEntity<>("{\"status\" : \"UP\"}", HttpStatus.OK);
}
If you are using the batch conversion, in the window click "options" in the "Batch conversion settings-output format" and tick the two boxes "save transparent color" (one under "PNG" and the other under "ICO").
I've heard people say you absolutely have to keep your schemas in the database. I'm not sure I agree. This really depends on the system you're working with. If your system is relatively small and the data is not terribly important. And the the speed at which you need to bring another development environment online is crucial.. then yes.. you can benefit from it. However when your schema is useless without the data and the database is extremely large, it becomes virtually impossible to "source control" your database. Sure, you can still keep your DDL code in source control but that's essentially useless. You can't get the data needed without backup/restore.
In larger database development efforts, I've found backup and restore as the preferred rollback option. Sure you can keep procs, views, functions etc in source control but keeping table.sql is not necessary. Also, if your deployment process is airtight, you'll most likely never have to "rollback" your production environment.
For Java Developers:
As @Niels said you have to place in values-v21/styles.xml:
<item name="android:statusBarColor">@color/black</item>
But add tools:targetApi="lollipop"
if you want single styles.xml, like:
<item name="android:statusBarColor" tools:targetApi="lollipop">@color/black</item>
For Kotlin Developers:
window.statusBarColor = ContextCompat.getColor(this, R.color.color_name)
Press Alt + Enter with the cursor on top of the import. The Optimize imports menu will show. Press Enter again. Your unused imports will be removed.
The cleanest approach is to copy the list and then insert the object into the copy. On Python 3 this can be done via list.copy
:
new = old.copy()
new.insert(index, value)
On Python 2 copying the list can be achieved via new = old[:]
(this also works on Python 3).
In terms of performance there is no difference to other proposed methods:
$ python --version
Python 3.8.1
$ python -m timeit -s "a = list(range(1000))" "b = a.copy(); b.insert(500, 3)"
100000 loops, best of 5: 2.84 µsec per loop
$ python -m timeit -s "a = list(range(1000))" "b = a.copy(); b[500:500] = (3,)"
100000 loops, best of 5: 2.76 µsec per loop
Adding this to the Vagrantfile
worked for me. These lines are the equivalent of you entering sudo su -
every time you login. Please notice that this requires reprovisioning the VM.
config.vm.provision "shell", inline: <<-SHELL
echo "sudo su -" >> .bashrc
SHELL
Highlight block of text, then:
Comment Block: Ctrl + K + C
Uncomment Block: Ctrl + K + U
Tested in Visual Studio 2012
Build solution will build any projects in the solution that have changed. Rebuild builds all projects no matter what, clean solution removes all temporary files ensuring that the next build is complete.
A slight improvement using column name, IMHO:
Private Sub GridView1_Init(sender As Object, e As System.EventArgs) Handles GridView1.Init
For Each dcf As DataControlField In GridView1.Columns
Select Case dcf.HeaderText.ToUpper
Case "CBSELECT"
dcf.Visible = Me.CheckBoxVisible
dcf.HeaderText = "<small>Select</small>"
End Select
Next
End Sub
This allows control over multiple column. I initially use a 'technical' column name, matching the control name within. This makes it obvious within the ASCX page that it's a control column. Then swap out the name as desired for presentation. If I spy the odd name in production, I know I skipped something. The "ToUpper" avoids case-issues.
Finally, this runs ONE time on any post instead of capturing the event during row-creation.
in my case I fixed it by putting compile 'com.android.support:recyclerview-v7:22.0.0'
as a dependency into my gradle build
(with Android studio v. 1.2.1.1 and all sdk's updated.)
It's really annoying when codes are updated so fast and the IDE can't keep track of them, and you have to manually fix for them, wasting time and resources.
But well, at last it works.
class MyParent:
def sayHi():
print('Mamma says hi')
from path.to.MyParent import MyParent
class ChildClass(MyParent):
pass
An instance of ChildClass
will then inherit the sayHi()
method.
old question but for newcomers that come around :
document.querySelector('div').outerHTML
This is an IDE issue. Change the setting in the PowerShell GUI. Go to the Tools tab and select Options, and then Debugging options. Then check the box Turn off requirement for scripts to be signed. Done.
You can use DDC (Domain Directory Controller). It is a new, easy to use, Java SDK. You don't even need to know LDAP to use it. It exposes an object-oriented API instead.
You can find it here.
There's no need to mess with your PYTHONPATH
or sys.path
here.
To properly use absolute imports in a package you should include the "root" packagename as well, e.g.:
from dirFoo.dirFoo1.foo1 import Foo1
from dirFoo.dirFoo2.foo2 import Foo2
Or you can use relative imports:
from .dirfoo1.foo1 import Foo1
from .dirfoo2.foo2 import Foo2
Let me try to explain (more on Blog) :
Car
constructor var Car = function(){}
, this is how things are internally:
We have one {prototype}
hidden link to Function.prototype
which is not accessible and one prototype
link to Car.prototype
which is accessible and has an actual constructor
of Car
. Both Function.prototype and Car.prototype have hidden links to Object.prototype
.When we want to create two equivalent objects by using the new
operator and create
method then we have to do it like this: Honda = new Car();
and Maruti = Object.create(Car.prototype)
.
What is happening?
Honda = new Car();
— When you create an object like this then hidden {prototype}
property is pointed to Car.prototype
. So here, the {prototype}
of the Honda object will always be Car.prototype
— we don't have any option to change the {prototype}
property of the object. What if I want to change the prototype of our newly created object?
Maruti = Object.create(Car.prototype)
— When you create an object like this you have an extra option to choose your object's {prototype}
property. If you want Car.prototype as the {prototype}
then pass it as a parameter in the function. If you don't want any {prototype}
for your object then you can pass null
like this: Maruti = Object.create(null)
.
Conclusion — By using the method Object.create
you have the freedom to choose your object {prototype}
property. In new Car();
, you don't have that freedom.
Preferred way in OO JavaScript :
Suppose we have two objects a
and b
.
var a = new Object();
var b = new Object();
Now, suppose a
has some methods which b
also wants to access. For that, we require object inheritance (a
should be the prototype of b
only if we want access to those methods). If we check the prototypes of a
and b
then we will find out that they share the prototype Object.prototype
.
Object.prototype.isPrototypeOf(b); //true
a.isPrototypeOf(b); //false (the problem comes into the picture here).
Problem — we want object a
as the prototype of b
, but here we created object b
with the prototype Object.prototype
.
Solution — ECMAScript 5 introduced Object.create()
, to achieve such inheritance easily. If we create object b
like this:
var b = Object.create(a);
then,
a.isPrototypeOf(b);// true (problem solved, you included object a in the prototype chain of object b.)
So, if you are doing object oriented scripting then Object.create()
is very useful for inheritance.
If you're still getting this error message:
TS7016: Could not find a declaration file for module './myjsfile'
Then you might need to add the following to tsconfig.json
{
"compilerOptions": {
...
"allowJs": true,
"checkJs": false,
...
}
}
This prevents typescript from trying to apply module types to the imported javascript.
I answer lately and I really recommand you to use SDKMAN instead of Homebrew.
With SDKMAN you can install easily different version of JAVA in your mac and switch from on version to another.
You can also use SDKMAN for ANT, GRADLE, KOTLIN, MAVEN, SCALA, etc...
To install a version in your mac you can run the command sdk install java 15.0.0.j9-adpt
This is caused by JAVA_HOME not being set correctly. It can be easily resolved by following the steps in this article.
I would try putting a
Log.e("SOMETAG", "dialog button was clicked");
before the dialog.dismiss() line in your code to see if it actually reaches that section.
The answers provided by Bohzo and Brabster will obviously work, but you could also just use:
rs3.getInt(1);
to get the value in the first, and in your case, only column.
Kyle's solution worked perfectly fine for me so I made my research in order to avoid any Js and CSS, but just sticking with HTML.
Adding a value of selected
to the item we want to appear as a header forces it to show in the first place as a placeholder.
Something like:
<option selected disabled>Choose here</option>
The complete markup should be along these lines:
<select>
<option selected disabled>Choose here</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
<option value="4">Four</option>
<option value="5">Five</option>
</select>
You can take a look at this fiddle, and here's the result:
If you do not want the sort of placeholder text to appear listed in the options once a user clicks on the select box just add the hidden
attribute like so:
<select>
<option selected disabled hidden>Choose here</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
<option value="4">Four</option>
<option value="5">Five</option>
</select>
Check the fiddle here and the screenshot below.
Here is the solution:
<select>
<option style="display:none;" selected>Select language</option>
<option>Option 1</option>
<option>Option 2</option>
</select>
Below, code snippet, will help you in understanding the mutex-lock-unlock concept. Attempt dry-run on the code. (further by varying the wait-time and process-time, you can build you understanding).
Code for your reference:
#include <stdio.h>
#include <pthread.h>
void in_progress_feedback(int);
int global = 0;
pthread_mutex_t mutex;
void *compute(void *arg) {
pthread_t ptid = pthread_self();
printf("ptid : %08x \n", (int)ptid);
int i;
int lock_ret = 1;
do{
lock_ret = pthread_mutex_trylock(&mutex);
if(lock_ret){
printf("lock failed(%08x :: %d)..attempt again after 2secs..\n", (int)ptid, lock_ret);
sleep(2); //wait time here..
}else{ //ret =0 is successful lock
printf("lock success(%08x :: %d)..\n", (int)ptid, lock_ret);
break;
}
} while(lock_ret);
for (i = 0; i < 10*10 ; i++)
global++;
//do some stuff here
in_progress_feedback(10); //processing-time here..
lock_ret = pthread_mutex_unlock(&mutex);
printf("unlocked(%08x :: %d)..!\n", (int)ptid, lock_ret);
return NULL;
}
void in_progress_feedback(int prog_delay){
int i=0;
for(;i<prog_delay;i++){
printf(". ");
sleep(1);
fflush(stdout);
}
printf("\n");
fflush(stdout);
}
int main(void)
{
pthread_t tid0,tid1;
pthread_mutex_init(&mutex, NULL);
pthread_create(&tid0, NULL, compute, NULL);
pthread_create(&tid1, NULL, compute, NULL);
pthread_join(tid0, NULL);
pthread_join(tid1, NULL);
printf("global = %d\n", global);
pthread_mutex_destroy(&mutex);
return 0;
}
The cors-everywhere addon works for me until Firefox 68, after 68 I need to adjust 'privacy.file_unique_origin' -> false (by open 'about:config') to solve 'CORS request not HTTP' for new CORS same-origin rule introduced.
<?php
//Loading all php files into of functions/ folder
$folder = "./functions/";
$files = glob($folder."*.php"); // return array files
foreach($files as $phpFile){
require_once("$phpFile");
}
Simply go with short one to open your Url in Browser:
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("YourUrlHere"));
startActivity(browserIntent);
Instead of using ">" to redirect like this:
java Foo > log
use ">>" to append normal "stdout" output to a new or existing file:
java Foo >> log
However, if you also want to capture "stderr" errors (such as why the Java program couldn't be started), you should also use the "2>&1" tag which redirects "stderr" (the "2") to "stdout" (the "1"). For example:
java Foo >> log 2>&1
Wget currently only supports x-www-form-urlencoded data. --post-file
is not for transmitting files as form attachments, it expects data with the form: key=value&otherkey=example
.
--post-data
and --post-file
work the same way: the only difference is that --post-data
allows you to specify the data in the command line, while --post-file
allows you to specify the path of the file that contain the data to send.
Here's the documentation:
--post-data=string
--post-file=file
Use POST as the method for all HTTP requests and send the specified data
in the request body. --post-data sends string as data, whereas
--post-file sends the contents of file. Other than that, they work in
exactly the same way. In particular, they both expect content of the
form "key1=value1&key2=value2", with percent-encoding for special
characters; the only difference is that one expects its content as a
command-line parameter and the other accepts its content from a file. In
particular, --post-file is not for transmitting files as form
attachments: those must appear as "key=value" data (with appropriate
percent-coding) just like everything else. Wget does not currently
support "multipart/form-data" for transmitting POST data; only
"application/x-www-form-urlencoded". Only one of --post-data and
--post-file should be specified.
Regarding your authentication token, it should either be provided in the header, in the path of the url, or in the data itself. This must be indicated somewhere in the documentation of the service you use. In a POST request, as in a GET request, you must specify the data using keys and values. This way the server will be able to receive multiple information with specific names. It's similar with variables.
Hence, you can't just send a magic token to the server, you also need to specify the name of the key. If the key is "token", then it should be token=YOUR_TOKEN
.
wget --post-data 'user=foo&password=bar' http://example.com/auth.php
Also, you should consider using curl if you can because it is easier to send files using it. There are many examples on the Internet for that.
This might sound silly, but make sure the "Offline" checkbox in Maven settings is unchecked. I was trying to create a project and got this error until I noticed the checkbox.
You can also get the value by element's name attribute.
var message = $("#formId textarea[name=message]").val();
Hercules is fantastic. It's a fully functioning tcp/udp client/server, amazing for debugging sockets. More details on the web site.
By default, unlike an exception, a warning doesn't interrupt.
After import warnings
, it is possible to specify a Warnings class when generating a warning. If one is not specified, it is literally UserWarning
by default.
>>> warnings.warn('This is a default warning.')
<string>:1: UserWarning: This is a default warning.
To simply use a preexisting class instead, e.g. DeprecationWarning
:
>>> warnings.warn('This is a particular warning.', DeprecationWarning)
<string>:1: DeprecationWarning: This is a particular warning.
Creating a custom warning class is similar to creating a custom exception class:
>>> class MyCustomWarning(UserWarning):
... pass
...
... warnings.warn('This is my custom warning.', MyCustomWarning)
<string>:1: MyCustomWarning: This is my custom warning.
For testing, consider assertWarns
or assertWarnsRegex
.
As an alternative, especially for standalone applications, consider the logging
module. It can log messages having a level of debug, info, warning, error, etc. Log messages having a level of warning or higher are by default printed to stderr.
It's a very bad idea to directly display any text on an irregular and ever changing background. No matter what you do, some of the time the text will be hard to read.
The best design would be to have the labels on a constant background with the images changing behind that.
You can set the labels background color from clear to white and set the from alpha to 50.0 you get a nice translucent effect. The only problem is that the label's background is a stark rectangle.
To get a label with a background with rounded corners you can use a button with user interaction disabled but the user might mistake that for a button.
The best method would be to create image of the label background you want and then put that in an imageview and put the label with the default transparent background onto of that.
Plain UIViews do not have an image background. Instead, you should make a UIImageView your main view and then rotate the images though its image property. If you set the UIImageView's mode to "Scale to fit" it will scale any image to fit the bounds of the view.
Have you tried HttpServerUtility.UrlDecode
or HttpUtility.UrlDecode
?
In the meantime (while you were updating your project), other commits have been made to the 'master' branch. Therefore, you must pull those changes first to be able to push your changes.
As other said, bubbling and capturing describe in which order some nested elements receive a given event.
I wanted to point out that for the innermost element may appear something strange. Indeed, in this case the order in which the event listeners are added does matter.
In the following example, capturing for div2
will be executed first than bubbling; while bubbling for div4
will be executed first than capturing.
function addClickListener (msg, num, type) {
document.querySelector("#div" + num)
.addEventListener("click", () => alert(msg + num), type);
}
bubble = (num) => addClickListener("bubble ", num, false);
capture = (num) => addClickListener("capture ", num, true);
// first capture then bubble
capture(1);
capture(2);
bubble(2);
bubble(1);
// try reverse order
bubble(3);
bubble(4);
capture(4);
capture(3);
_x000D_
#div1, #div2, #div3, #div4 {
border: solid 1px;
padding: 3px;
margin: 3px;
}
_x000D_
<div id="div1">
div 1
<div id="div2">
div 2
</div>
</div>
<div id="div3">
div 3
<div id="div4">
div 4
</div>
</div>
_x000D_
Webclient client = new Webclient();
string content = client.DownloadString(url);
Pass the URL of page who you want to get. You can parse the result using htmlagilitypack.
<script type="text/javascript">
function AlertFilesize(){
if(window.ActiveXObject){
var fso = new ActiveXObject("Scripting.FileSystemObject");
var filepath = document.getElementById('fileInput').value;
var thefile = fso.getFile(filepath);
var sizeinbytes = thefile.size;
}else{
var sizeinbytes = document.getElementById('fileInput').files[0].size;
}
var fSExt = new Array('Bytes', 'KB', 'MB', 'GB');
fSize = sizeinbytes; i=0;while(fSize>900){fSize/=1024;i++;}
alert((Math.round(fSize*100)/100)+' '+fSExt[i]);
}
</script>
<input id="fileInput" type="file" onchange="AlertFilesize();" />
Work on IE and FF
To get only the date portion use the ToString() method,
example: DateTime.Now.Date.ToString("dd/MM/yyyy")
Note: The mm in the dd/MM/yyyy format must be capitalized
cat ~/.docker/config.json
Sample Result:
{
"auths": {
"https://55511155511.dkr.ecr.us-east-1.amazonaws.com": {}
},
"HttpHeaders": {
"User-Agent": "Docker-Client/19.03.5 (darwin)"
},
"credsStore": "osxkeychain"
}
Notice that the "auths" value is an empty object and docker is using a credential store "osxkeychain".
Notice the Where:
field
auths
key in ~/.docker/config.json
matches the Where:
field in Keychain Access.If the auths
key in ~/.docker/config.json does NOT match they Where:
field in the keychain, you may get a Login Succeeded
from docker login...
but still get
ERROR: Service 'web' failed to build: Get https://55511155511.dkr.ecr.us-east-1.amazonaws.com/v2/path/to/image/latest: no basic auth credentials
when you try to pull.
In my case, I needed to add https://
Original
"auths": {
"55511155511.dkr.ecr.us-east-1.amazonaws.com": {}
},
Fixed
"auths": {
"https://55511155511.dkr.ecr.us-east-1.amazonaws.com": {}
},
I liked PostMan
, it was the main reason why I kept using Chrome, now I'm good with HttpRequester
https://addons.mozilla.org/En-us/firefox/addon/httprequester/?src=search
The function read_csv and read_table is almost the same. But you must assign the delimiter “,” when you use the function read_table in your program.
def get_from_action_data(fname, chunk_size=100000):
reader = pd.read_csv(fname, header=0, iterator=True)
chunks = []
loop = True
while loop:
try:
chunk = reader.get_chunk(chunk_size)[["user_id", "type"]]
chunks.append(chunk)
except StopIteration:
loop = False
print("Iteration is stopped")
df_ac = pd.concat(chunks, ignore_index=True)
SELECT CONVERT_TZ() will work for that.but its not working for me.
Why, what error do you get?
SELECT CONVERT_TZ(displaytime,'GMT','MET');
should work if your column type is timestamp, or date
http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html#function_convert-tz
Test how this works:
SELECT CONVERT_TZ(a_ad_display.displaytime,'+00:00','+04:00');
Check your timezone-table
SELECT * FROM mysql.time_zone;
SELECT * FROM mysql.time_zone_name;
http://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html
If those tables are empty, you have not initialized your timezone tables. According to link above you can use mysql_tzinfo_to_sql
program to load the Time Zone Tables. Please try this
shell> mysql_tzinfo_to_sql /usr/share/zoneinfo
or if not working read more: http://dev.mysql.com/doc/refman/5.5/en/mysql-tzinfo-to-sql.html
I developed a library for knowing the real viewport size for desktops and mobiles browsers, because viewport sizes are inconsistents across devices and cannot rely on all the answers of that post (according to all the research I made about this) : https://github.com/pyrsmk/W
Here is a special case, but might inspire you to create your own work around. The goal here is to count the total number of records from two different tables where records meet a particular criteria. I believe this technique will work for any case where you need to aggregate data from across multiple tables/sources.
I have some special intermediate classes setup, so the code which calls the named query is short and sweet, but you can use whatever method you normally use in conjunction with named queries to execute your query.
QueryParms parms=new QueryParms();
parms.put("PROCDATE",PROCDATE);
Long pixelAll = ((SourceCount)Fetch.row("PIXEL_ALL",parms,logger)).getCOUNT();
As you can see here, the named query begins to look an aweful lot like a union statement:
@Entity
@NamedQueries({
@NamedQuery(
name ="PIXEL_ALL",
query = "" +
" SELECT new SourceCount(" +
" (select count(a) from PIXEL_LOG_CURR1 a " +
" where to_char(a.TIMESTAMP, 'YYYYMMDD') = :PROCDATE " +
" )," +
" (select count(b) from PIXEL_LOG_CURR2 b" +
" where to_char(b.TIMESTAMP, 'YYYYMMDD') = :PROCDATE " +
" )" +
") from Dual1" +
""
)
})
public class SourceCount {
@Id
private Long COUNT;
public SourceCount(Long COUNT1, Long COUNT2) {
this.COUNT = COUNT1+COUNT2;
}
public Long getCOUNT() {
return COUNT;
}
public void setCOUNT(Long COUNT) {
this.COUNT = COUNT;
}
}
Part of the magic here is to create a dummy table and insert one record into it. In my case, I named it dual1 because my database is Oracle, but I don't think it matters what you call the dummy table.
@Entity
@Table(name="DUAL1")
public class Dual1 {
@Id
Long ID;
}
Don't forget to insert your dummy record:
SQL> insert into dual1 values (1);
if you have scenario in which you have to remove more then one values from the foreach array in this case you have to pass value by reference in for each: I try to explain this scenario:
foreach ($manSkuQty as $man_sku => &$man_qty) {
foreach ($manufacturerSkus as $key1 => $val1) {
// some processing here and unset first loops entries
// here dont include again for next iterations
if(some condition)
unset($manSkuQty[$key1]);
}
}
}
in second loop you want to unset first loops entries dont come again in the iteration for performance purpose or else then unset from memory as well because in memory they present and will come in iterations.
@csam is correct in theory, although his code will not complie and can be refractored to
public static IEnumerable<int> IndexOfAll(this string sourceString, string matchString)
{
matchString = Regex.Escape(matchString);
return from Match match in Regex.Matches(sourceString, matchString) select match.Index;
}
Observe that errorLogger is a wrapper around logger.trace. But the level of logger is ERROR so logger.trace will not log its message to logger's appenders.
The fix is to change logger.trace to logger.error in the body of errorLogger.
Here is another version of weighted_choice that uses numpy. Pass in the weights vector and it will return an array of 0's containing a 1 indicating which bin was chosen. The code defaults to just making a single draw but you can pass in the number of draws to be made and the counts per bin drawn will be returned.
If the weights vector does not sum to 1, it will be normalized so that it does.
import numpy as np
def weighted_choice(weights, n=1):
if np.sum(weights)!=1:
weights = weights/np.sum(weights)
draws = np.random.random_sample(size=n)
weights = np.cumsum(weights)
weights = np.insert(weights,0,0.0)
counts = np.histogram(draws, bins=weights)
return(counts[0])
To check for the existence of a directory using Dir
, you need to specify vbDirectory
as the second argument, as in something like:
If Dir("C:\2013 Recieved Schedules" & "\" & client, vbDirectory) = "" Then
Note that, with vbDirectory
, Dir
will return a non-empty string if the specified path already exists as a directory or as a file (provided the file doesn't have any of the read-only, hidden, or system attributes). You could use GetAttr
to be certain it's a directory and not a file.
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Comparator;
public class TestClass {
public static void main(String[] args) {
Student s1 = new Student("1","Nikhil");
Student s2 = new Student("1","*");
Student s3 = new Student("1",null);
Student s11 = new Student("2","Nikhil");
Student s12 = new Student("2","*");
Student s13 = new Student("2",null);
List<Student> list = new ArrayList<Student>();
list.add(s1);
list.add(s2);
list.add(s3);
list.add(s11);
list.add(s12);
list.add(s13);
list.sort(Comparator.comparing(Student::getName,Comparator.nullsLast(Comparator.naturalOrder())));
for (Iterator iterator = list.iterator(); iterator.hasNext();) {
Student student = (Student) iterator.next();
System.out.println(student);
}
}
}
output is
Student [name=*, id=1]
Student [name=*, id=2]
Student [name=Nikhil, id=1]
Student [name=Nikhil, id=2]
Student [name=null, id=1]
Student [name=null, id=2]
On the top of the screen you can find the Finder. Click Go -> Go to Folder -> search ~/.m2
If it is not found, as m2
is a hidden file you need to enable visibility by typing the following command in terminal:
defaults write com.apple.finder AppleShowAllFiles YES
Within the push
method of hashHistory
, you can specify your query parameters. For instance,
history.push({
pathname: '/dresses',
search: '?color=blue'
})
or
history.push('/dresses?color=blue')
You can check out this repository for additional examples on using history
status of 200 will be the default when using res.send
, res.json
, etc.
You can set the status like res.status(500).json({ error: 'something is wrong' });
Often I'll do something like...
router.get('/something', function(req, res, next) {
// Some stuff here
if(err) {
res.status(500);
return next(err);
}
// More stuff here
});
Then have my error middleware send the response, and do anything else I need to do when there is an error.
Additionally: res.sendStatus(status)
has been added as of version 4.9.0
http://expressjs.com/4x/api.html#res.sendStatus
Supose you have the following scenario:
* 1bd2200 (HEAD, master) another commit
* d258546 bad commit
* 0f1efa9 3rd commit
* bd8aa13 2nd commit
* 34c4f95 1st commit
Where you want to remove d258546 i.e. "bad commit".
You shall try an interactive rebase to remove it: git rebase -i 34c4f95
then your default editor will pop with something like this:
pick bd8aa13 2nd commit
pick 0f1efa9 3rd commit
pick d258546 bad commit
pick 1bd2200 another commit
# Rebase 34c4f95..1bd2200 onto 34c4f95
#
# Commands:
# p, pick = use commit
# r, reword = use commit, but edit the commit message
# e, edit = use commit, but stop for amending
# s, squash = use commit, but meld into previous commit
# f, fixup = like "squash", but discard this commit's log message
# x, exec = run command (the rest of the line) using shell
#
# These lines can be re-ordered; they are executed from top to bottom.
#
# If you remove a line here THAT COMMIT WILL BE LOST.
#
# However, if you remove everything, the rebase will be aborted.
#
# Note that empty commits are commented out
just remove the line with the commit you want to strip and save+exit the editor:
pick bd8aa13 2nd commit
pick 0f1efa9 3rd commit
pick 1bd2200 another commit
...
git will proceed to remove this commit from your history leaving something like this (mind the hash change in the commits descendant from the removed commit):
* 34fa994 (HEAD, master) another commit
* 0f1efa9 3rd commit
* bd8aa13 2nd commit
* 34c4f95 1st commit
Now, since I suppose that you already pushed the bad commit to gitlab, you'll need to repush your graph to the repository (but with the -f
option to prevent it from being rejected due to a non fastforwardeable history i.e. git push -f <your remote> <your branch>
)
Please be extra careful and make sure that none coworker is already using the history containing the "bad commit" in their branches.
Alternative option:
Instead of rewrite the history, you may simply create a new commit which negates the changes introduced by your bad commit, to do this just type git revert <your bad commit hash>
. This option is maybe not as clean, but is far more safe (in case you are not fully aware of what are you doing with an interactive rebase).
I believe what are you asking about is a variable interpolation in PHP.
Let's do a simple fixture:
$obj = (object) array('foo' => array('bar'), 'property' => 'value');
$var = 'foo';
Now we have an object, where:
print_r($obj);
Will give output:
stdClass Object
(
[foo] => Array
(
[0] => bar
)
[property] => value
)
And we have variable $var
containing string "foo".
If you'll try to use:
$give_me_foo = $obj->$var[0];
Instead of:
$give_me_foo = $obj->foo[0];
You get "Cannot use string offset as an array [...]" error message as a result, because what you are trying to do, is in fact sending message $var[0]
to object $obj
. And - as you can see from fixture - there is no content of $var[0]
defined. Variable $var
is a string and not an array.
What you can do in this case is to use curly braces, which will assure that at first is called content of $var
, and subsequently the rest of message-sent:
$give_me_foo = $obj->{$var}[0];
The result is "bar"
, as you would expect.
Set the architecture in build setting to Standard architectures(armv7,armv7s)
iPhone 5S is powered by A7 64bit processor. From apple docs
Xcode can build your app with both 32-bit and 64-bit binaries included. This combined binary requires a minimum deployment target of iOS 7 or later.
Note: A future version of Xcode will let you create a single app that supports the 32-bit runtime on iOS 6 and later, and that supports the 64-bit runtime on iOS 7.
From the documentation what i understood is
Update (Xcode 5.0.1)
In Xcode 5.0.1 they added the support to create 64 bit binary for iOS 5.1.1 onwards.
Xcode 5.0.1 can build your app with both 32-bit and 64-bit binaries included. This combined binary requires a minimum deployment target of iOS 5.1.1 or later. The 64-bit binary runs only on 64-bit devices running iOS 7.0.3 and later.
Update (Xcode 5.1)
Xcode 5.1 made significant change in the architecture section. This answer will be a followup for you.
Check this
Implemented in JavaScript (ES6):
/**
* Calculate x and y in circle's circumference
* @param {Object} input - The input parameters
* @param {number} input.radius - The circle's radius
* @param {number} input.angle - The angle in degrees
* @param {number} input.cx - The circle's origin x
* @param {number} input.cy - The circle's origin y
* @returns {Array[number,number]} The calculated x and y
*/
function pointsOnCircle({ radius, angle, cx, cy }){
angle = angle * ( Math.PI / 180 ); // Convert from Degrees to Radians
const x = cx + radius * Math.sin(angle);
const y = cy + radius * Math.cos(angle);
return [ x, y ];
}
Usage:
const [ x, y ] = pointsOnCircle({ radius: 100, angle: 180, cx: 150, cy: 150 });
console.log( x, y );
/**
* Calculate x and y in circle's circumference
* @param {Object} input - The input parameters
* @param {number} input.radius - The circle's radius
* @param {number} input.angle - The angle in degrees
* @param {number} input.cx - The circle's origin x
* @param {number} input.cy - The circle's origin y
* @returns {Array[number,number]} The calculated x and y
*/
function pointsOnCircle({ radius, angle, cx, cy }){
angle = angle * ( Math.PI / 180 ); // Convert from Degrees to Radians
const x = cx + radius * Math.sin(angle);
const y = cy + radius * Math.cos(angle);
return [ x, y ];
}
const canvas = document.querySelector("canvas");
const ctx = canvas.getContext("2d");
function draw( x, y ){
ctx.clearRect( 0, 0, canvas.width, canvas.height );
ctx.beginPath();
ctx.strokeStyle = "orange";
ctx.arc( 100, 100, 80, 0, 2 * Math.PI);
ctx.lineWidth = 3;
ctx.stroke();
ctx.closePath();
ctx.beginPath();
ctx.fillStyle = "indigo";
ctx.arc( x, y, 6, 0, 2 * Math.PI);
ctx.fill();
ctx.closePath();
}
let angle = 0; // In degrees
setInterval(function(){
const [ x, y ] = pointsOnCircle({ radius: 80, angle: angle++, cx: 100, cy: 100 });
console.log( x, y );
draw( x, y );
document.querySelector("#degrees").innerHTML = angle + "°";
document.querySelector("#points").textContent = x.toFixed() + "," + y.toFixed();
}, 100 );
_x000D_
<p>Degrees: <span id="degrees">0</span></p>
<p>Points on Circle (x,y): <span id="points">0,0</span></p>
<canvas width="200" height="200" style="border: 1px solid"></canvas>
_x000D_
echo -n 5a | perl -pe 's/([0-9a-f]{2})/chr hex $1/gie'
Note that this won't skip non-hex characters. If you want just the hex (no whitespace from the original string etc):
echo 5a | perl -ne 's/([0-9a-f]{2})/print chr hex $1/gie'
Also, zsh
and bash
support this natively in echo
:
echo -e '\x5a'
Used properly, this can be a useful technique.
Say you have a complex, performance critical subsystem with a fairly small public interface and a lot of non-reusable implementation code. The code runs to several thousand lines, a hundred or so private functions and quite a bit of private data. If you work with non-trivial embedded systems, you probably deal with this situation frequently enough.
Your solution will probably be layered, modular and decoupled and these aspects can be usefully represented and reinforced by coding different parts of the subsystem in different files.
With C, you can lose a lot by doing this. Almost all toolchains provide decent optimisation for a single compilation unit, but are very pessimistic about anything declared extern.
If you put everything into one C source module, you get -
Performance & code size improvements - function calls will be inlined in many cases. Even without inlining, the compiler has opportunities to produce more efficient code.
Link level data & function hiding.
Avoidance of namespace pollution and its corollary - you can use less unwieldy names.
Faster compilation & linkage.
But you also get an unholy mess when it comes to editing this file and you lose the implied modularity. This can be overcome by splitting the source into several files and including these to produce a single compilation unit.
You need to impose some conventions to manage this properly though. These will depend on your toolchain to some extent, but some general pointers are -
Put the public interface in a separate header file - you should be doing this anyway.
Have one main .c file that includes all the subsidiary .c files. This could also include the code for the public interface.
Use compiler guards to ensure that private headers and source modules are not included by external compilation units.
All private data & functions should be declared static.
Maintain the conceptual distinction between .c and .h files. This leverages existing conventions. The difference is that you will have a lot of static declarations in your headers.
If your toolchain doesn't impose any reason not to, name the private implementation files as .c and .h. If you use include guards, these will produce no code and introduce no new names (you may end up with some empty segments during linkage). The huge advantage is that other tools (e.g. IDEs) will treat these files appropriately.
One simple way is to wrap your Spinner + Drop Down Arrow Image inside a Layout. Set the background of Spinner as transparent so that the default arrow icon gets hidden. Something like this:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/background"
android:orientation="horizontal">
<Spinner
android:id="@+id/spinner"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="4"
android:gravity="center"
android:background="@android:color/transparent"
android:spinnerMode="dropdown" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:onClick="showDropDown"
android:src="@drawable/ic_chevron_down_blue" />
</LinearLayout>
Here background.xml is a drawable to produce a box type background.
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@android:color/transparent" />
<corners android:radius="2dp" />
<stroke
android:width="1dp"
android:color="#BDBDBD" />
</shape>
The above code produces this type of a Spinner and icon.
If you use the "select()" statement, you can do this:
$category = $catrep->createQueryBuilder('cc')
->select('DISTINCT cc.contenttype')
->Where('cc.contenttype = :type')
->setParameter('type', 'blogarticle')
->getQuery();
$categories = $category->getResult();
There is also an alternate solution for those who aren't afraid of using hex editors (e.g. XVI32) [thanks to Trevor for this]: in the unpacked 1 installer executable (jdk-8uXX-windows-i586.exe
in case of JDK) simply replace all occurrences of RegDeleteKeyExA
(the name of API found in "new" ADVAPI32.DLL
) with RegDeleteKeyA
(legacy API name), followed by two hex '00's (to preserve padding/segmentation boundaries). The installer will complain about unsupported Windows version, but will work nevertheless.
For reference, the raw hex strings will be:
52 65 67 44 65 6C 65 74 65 4B 65 79 45 78 41
replaced with
52 65 67 44 65 6C 65 74 65 4B 65 79 41 00 00
Note: this procedure applies to both offline (standalone) and online (downloader) package.
1: some newer installer versions are packed with UPX - you'd need to unpack them first, otherwise you simply won't be able to find the hex string required
By default, hibernate framework will immediately return id , when you are trying to save the entity using Save(entity)
method. There is no need to do it explicitly.
In case your primary key is int
you can use below code:
int id=(Integer) session.save(entity);
In case of string use below code:
String str=(String)session.save(entity);
v15.8.0
, LTS v14.15.4
, and v12.20.1
--- Feb 2021Async method (Unix):
'use strict';
const { spawn } = require( 'child_process' );
const ls = spawn( 'ls', [ '-lh', '/usr' ] );
ls.stdout.on( 'data', ( data ) => {
console.log( `stdout: ${ data }` );
} );
ls.stderr.on( 'data', ( data ) => {
console.log( `stderr: ${ data }` );
} );
ls.on( 'close', ( code ) => {
console.log( `child process exited with code ${ code }` );
} );
Async method (Windows):
'use strict';
const { spawn } = require( 'child_process' );
// NOTE: Windows Users, this command appears to be differ for a few users.
// You can think of this as using Node to execute things in your Command Prompt.
// If `cmd` works there, it should work here.
// If you have an issue, try `dir`:
// const dir = spawn( 'dir', [ '.' ] );
const dir = spawn( 'cmd', [ '/c', 'dir' ] );
dir.stdout.on( 'data', ( data ) => console.log( `stdout: ${ data }` ) );
dir.stderr.on( 'data', ( data ) => console.log( `stderr: ${ data }` ) );
dir.on( 'close', ( code ) => console.log( `child process exited with code ${code}` ) );
Sync:
'use strict';
const { spawnSync } = require( 'child_process' );
const ls = spawnSync( 'ls', [ '-lh', '/usr' ] );
console.log( `stderr: ${ ls.stderr.toString() }` );
console.log( `stdout: ${ ls.stdout.toString() }` );
From Node.js v15.8.0 Documentation
The same goes for Node.js v14.15.4 Documentation and Node.js v12.20.1 Documentation
you can use html entity as •
If you read a list from text file, you may get the last empty line as a list element. You can get rid of it like this:
list.pop()
for i in list:
i[12]=....
I had this same problem and it occurred because I had hit the enter key when adding code in a text string.
Because it was a long string of text I wanted to see it all without having to scroll in my text editor, however hitting enter added an invisible character to the string which was illegal. I was using Sublime Text as my editor.
Note that if the user may be in multiple zones used in the query, you may probably want to add .distinct()
. Otherwise you get one user multiple times:
users_in_zones = User.objects.filter(zones__in=[zone1, zone2, zone3]).distinct()
You'll need to use fs
for that: http://nodejs.org/api/fs.html
And in particular the fs.rename()
function:
var fs = require('fs');
fs.rename('/path/to/Afghanistan.png', '/path/to/AF.png', function(err) {
if ( err ) console.log('ERROR: ' + err);
});
Put that in a loop over your freshly-read JSON object's keys and values, and you've got a batch renaming script.
fs.readFile('/path/to/countries.json', function(error, data) {
if (error) {
console.log(error);
return;
}
var obj = JSON.parse(data);
for(var p in obj) {
fs.rename('/path/to/' + obj[p] + '.png', '/path/to/' + p + '.png', function(err) {
if ( err ) console.log('ERROR: ' + err);
});
}
});
(This assumes here that your .json
file is trustworthy and that it's safe to use its keys and values directly in filenames. If that's not the case, be sure to escape those properly!)
I would suggest you to use either an image or text. So, Remove the text and add it in your image(using Photoshop, maybe). Then, Use a width and height 100% for the image. it will do the trick. because the image can be resized based on the container. But, you have to manually resize the text. If you can provide the fiddle, I can help you achieve this.
You can use ::after
to create a 0px
-height block after the <h4>
, which effectively moves anything after the <h4>
to the next line:
h4 {_x000D_
display: inline;_x000D_
}_x000D_
h4::after {_x000D_
content: "";_x000D_
display: block;_x000D_
}
_x000D_
<ul>_x000D_
<li>_x000D_
Text, text, text, text, text. <h4>Sub header</h4>_x000D_
Text, text, text, text, text._x000D_
</li>_x000D_
</ul>
_x000D_
Make sure you have a start page specified, as well. Right click on the .aspx page you want to use as your start page and choose "Set as start page"
Take a look on pprint, The pprint module provides a capability to “pretty-print” arbitrary Python data structures in a form which can be used as input to the interpreter. If the formatted structures include objects which are not fundamental Python types, the representation may not be loadable. This may be the case if objects such as files, sockets or classes are included, as well as many other objects which are not representable as Python literals.
>>> import pprint
>>> stuff = ['spam', 'eggs', 'lumberjack', 'knights', 'ni']
>>> stuff.insert(0, stuff[:])
>>> pp = pprint.PrettyPrinter(indent=4)
>>> pp.pprint(stuff)
[ ['spam', 'eggs', 'lumberjack', 'knights', 'ni'],
'spam',
'eggs',
'lumberjack',
'knights',
'ni']
>>> pp = pprint.PrettyPrinter(width=41, compact=True)
>>> pp.pprint(stuff)
[['spam', 'eggs', 'lumberjack',
'knights', 'ni'],
'spam', 'eggs', 'lumberjack', 'knights',
'ni']
>>> tup = ('spam', ('eggs', ('lumberjack', ('knights', ('ni', ('dead',
... ('parrot', ('fresh fruit',))))))))
>>> pp = pprint.PrettyPrinter(depth=6)
>>> pp.pprint(tup)
('spam', ('eggs', ('lumberjack', ('knights', ('ni', ('dead', (...)))))))
Take a look at my jquery videoBG plugin
http://syddev.com/jquery.videoBG/
Make any HTML5 video a site background... has an image fallback for browsers that don't support html5
Really easy to use
Let me know if you need any help.
You have at least two issues in your code:
ng-change="getScoreData(Score)
Angular doesn't see getScoreData
method that refers to defined service
getScoreData: function (Score, callback)
We don't need to use callback since GET
returns promise. Use then
instead.
Here is a working example (I used random address only for simulation):
HTML
<select ng-model="score"
ng-change="getScoreData(score)"
ng-options="score as score.name for score in scores"></select>
<pre>{{ScoreData|json}}</pre>
JS
var fessmodule = angular.module('myModule', ['ngResource']);
fessmodule.controller('fessCntrl', function($scope, ScoreDataService) {
$scope.scores = [{
name: 'Bukit Batok Street 1',
URL: 'http://maps.googleapis.com/maps/api/geocode/json?address=Singapore, SG, Singapore, 153 Bukit Batok Street 1&sensor=true'
}, {
name: 'London 8',
URL: 'http://maps.googleapis.com/maps/api/geocode/json?address=Singapore, SG, Singapore, London 8&sensor=true'
}];
$scope.getScoreData = function(score) {
ScoreDataService.getScoreData(score).then(function(result) {
$scope.ScoreData = result;
}, function(result) {
alert("Error: No data returned");
});
};
});
fessmodule.$inject = ['$scope', 'ScoreDataService'];
fessmodule.factory('ScoreDataService', ['$http', '$q', function($http) {
var factory = {
getScoreData: function(score) {
console.log(score);
var data = $http({
method: 'GET',
url: score.URL
});
return data;
}
}
return factory;
}]);
Demo Fiddle
I came up with the same problem and I'm sharing how I fixed it. It may help some people.
First, check your Android version. If it is running on Android 6.0 and higher (API level 23+), then you need to :
**<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />**
<application ...>
...
</application>
Then, request that the user approve each permission at runtime
if (ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.CAMERA)
!= PackageManager.PERMISSION_GRANTED) {
// here, Permission is not granted
ActivityCompat.requestPermissions(this, new String[] {android.Manifest.permission.CAMERA}, 50);
}
For more information, have a look at the API documentation here
The necessary method is Mockito#verify:
public static <T> T verify(T mock,
VerificationMode mode)
mock
is your mocked object and mode
is the VerificationMode
that describes how the mock should be verified. Possible modes are:
verify(mock, times(5)).someMethod("was called five times");
verify(mock, never()).someMethod("was never called");
verify(mock, atLeastOnce()).someMethod("was called at least once");
verify(mock, atLeast(2)).someMethod("was called at least twice");
verify(mock, atMost(3)).someMethod("was called at most 3 times");
verify(mock, atLeast(0)).someMethod("was called any number of times"); // useful with captors
verify(mock, only()).someMethod("no other method has been called on the mock");
You'll need these static imports from the Mockito
class in order to use the verify
method and these verification modes:
import static org.mockito.Mockito.atLeast;
import static org.mockito.Mockito.atLeastOnce;
import static org.mockito.Mockito.atMost;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.only;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
So in your case the correct syntax will be:
Mockito.verify(mock, times(4)).send()
This verifies that the method send
was called 4 times on the mocked object. It will fail if it was called less or more than 4 times.
If you just want to check, if the method has been called once, then you don't need to pass a VerificationMode
. A simple
verify(mock).someMethod("was called once");
would be enough. It internally uses verify(mock, times(1)).someMethod("was called once");
.
It is possible to have multiple verification calls on the same mock to achieve a "between" verification. Mockito doesn't support something like this verify(mock, between(4,6)).someMethod("was called between 4 and 6 times");
, but we can write
verify(mock, atLeast(4)).someMethod("was called at least four times ...");
verify(mock, atMost(6)).someMethod("... and not more than six times");
instead, to get the same behaviour. The bounds are included, so the test case is green when the method was called 4, 5 or 6 times.
I've experienced the same problem. One of the responds to your question led me to the following idea (which worked eventually). I use Python 3.7.
# just an example
def func(): # define a function
func.y = 4 # here y is a local variable, which I want to access; func.y defines
# a method for my example function which will allow me to access
# function's local variable y
x = func.y + 8 # this is the main task for the function: what it should do
return x
func() # now I'm calling the function
a = func.y # I put it's local variable into my new variable
print(a) # and print my new variable
Then I launch this program in Windows PowerShell and get the answer 4. Conclusion: to be able to access a local function's variable one might add the name of the function and a dot before the name of the local variable (and then, of course, use this construction for calling the variable both in the function's body and outside of it). I hope this will help.
None of them are "better" than the others. The third is, to me, more readable, but to someone who doesn't use foreaches it might look odd (they might prefer the first). All 3 are pretty clear to anyone who understands Java, so pick whichever makes you feel better about the code.
The first one is the most basic, so it's the most universal pattern (works for arrays, all iterables that I can think of). That's the only difference I can think of. In more complicated cases (e.g. you need to have access to the current index, or you need to filter the list), the first and second cases might make more sense, respectively. For the simple case (iterable object, no special requirements), the third seems the cleanest.
Getting into a non-password protected Java keystore and changing the password can be done with a help of Java programming language itself.
That article contains the code for that:
pylint error: "Unable to import 'django.X'"
After activating the desired Python interpreter in your conda environment, VS Code will sometimes continue to use pylint from the default conda environment. For example:
/home/<username>/anaconda3/bin/pylint
$ conda activate <target environment>
$ conda install pylint
/home/<username>/anaconda3/envs/<target environment>/bin/pylint
Replace <username>
and <target environment>
according to your system configuration.
Now pylint will find the installed libraries, including Django, presuming that Django has been installed in <target environment>.
$ conda install pylint-django
Update the VS Code Settings to use the plugin:
--load-plugins=pylint_django
--django-settings-module=<PROJECT FOLDER>.settings
<PROJECT FOLDER>
with the folder containing the "settings.py" Django configuration file.The LTrim function to remove leading spaces and the RTrim function to remove trailing spaces from a string variable. It uses the Trim function to remove both types of spaces and means before and after spaces of string.
SELECT LTRIM(RTRIM(REVERSE(' NEXT LEVEL EMPLOYEE ')))
You can have multiple .gitignore
, each one of course in its own directory.
To check which gitignore rule is responsible for ignoring a file, use git check-ignore
: git check-ignore -v -- afile
.
And you can have different version of a .gitignore
file per branch: I have already seen that kind of configuration for ensuring one branch ignores a file while the other branch does not: see this question for instance.
If your repo includes several independent projects, it would be best to reference them as submodules though.
That would be the actual best practices, allowing each of those projects to be cloned independently (with their respective .gitignore
files), while being referenced by a specific revision in a global parent project.
See true nature of submodules for more.
Note that, since git 1.8.2 (March 2013) you can do a git check-ignore -v -- yourfile
in order to see which gitignore run (from which .gitignore
file) is applied to 'yourfile
', and better understand why said file is ignored.
See "which gitignore
rule is ignoring my file?"
\if what you have posted is exactly what you are using then your problem is a bit obvious. Now assuming in your web.config you have you connection string defined like this
<add name="SiteSqlServer" connectionString="Data Source=(local);Initial Catalog=some_db;User ID=sa;Password=uvx8Pytec" providerName="System.Data.SqlClient" />
In your code you should use the value in the name attribute to refer to the connection string you want (you could actually define several connection strings to different databases), so you would have
con.ConnectionString = ConfigurationManager.ConnectionStrings["SiteSqlServer"].ConnectionString;
proxy issue can cause this. IIS webconfig put this in
<defaultProxy useDefaultCredentials="true" enabled="true">
<proxy usesystemdefault="True" />
</defaultProxy>
Make a sample request to https://http-tools.appspot.com/reflect-http-request/some-unique-id and check what this request contains (request header, request body, request parameters) by its corresponding finder url https://http-tools.appspot.com/reflect-http-request-finder/some-unique-id. You can use any string instead of some-unique-id
, check out https://http-tools.appspot.com for more details.
Here is another way to get the function parameters without using any module.
def get_parameters(func):
keys = func.__code__.co_varnames[:func.__code__.co_argcount][::-1]
sorter = {j: i for i, j in enumerate(keys[::-1])}
values = func.__defaults__[::-1]
kwargs = {i: j for i, j in zip(keys, values)}
sorted_args = tuple(
sorted([i for i in keys if i not in kwargs], key=sorter.get)
)
sorted_kwargs = {
i: kwargs[i] for i in sorted(kwargs.keys(), key=sorter.get)
}
return sorted_args, sorted_kwargs
def f(a, b, c="hello", d="world"): var = a
print(get_parameters(f))
Output:
(('a', 'b'), {'c': 'hello', 'd': 'world'})
Add the following in your index.php
file. I first came across this when I moved my application from my XAMPP server to Apache 2.2 and PHP 5.4...
I would advise you do it in your index.php
file instead of the php.ini
file.
if( ! ini_get('date.timezone') )
{
date_default_timezone_set('GMT');
}
You don't need to install curl
to download the file into Docker container, use ADD
command, e.g.
ADD https://raw.githubusercontent.com/Homebrew/install/master/install /tmp
RUN ruby -e /tmp/install
Note: Add above lines to your Dockerfile
file.
Another example which installs Azure CLI:
ADD https://aka.ms/InstallAzureCLIDeb /tmp
RUN bash /tmp/InstallAzureCLIDeb
Take look at my code. It makes the font size smaller
to fit
whatever there.
But I think this doesn't lead to a good user experience
var containerWidth = $("#ui-id-2").width();
var items = $(".quickSearchAutocomplete .ui-menu-item");
var fontSize = 16;
items.each(function(){
// Displaying a value depends sometimes on your case. You may make it block or inline-table instead of inline-block or whatever value that make the div take overflow width.
$(this).css({"whiteSpace": "nowrap", "display": "inline-block"});
while ($(this).width() > containerWidth){
console.log("$(this).width()" + $(this).width() + "containerWidth" + containerWidth)
$(this).css("font-size", fontSize -= 0.5);
}
});
There are multiple ways of achieving this.
The routerLink attribute requires you to import the routingModule into the feature module in case you lazy loaded the feature module or just import the app-routing-module if it is not automatically added to the AppModule imports array.
<a [routerLink]="['/user', user.id]">John Doe</a>
<a routerLink="urlString">John Doe</a> // urlString is computed in your component
// Inject Router into your component
// Inject ActivatedRoute into your component. This will allow the route to be done related to the current url
this._router.navigate(['user',user.id], {relativeTo: this._activatedRoute})
this._router.navigateByUrl(urlString).then((bool) => {}).catch()
Another Alternative for those who are probing around and/or in interactive mode:
$Error[0].Exception.LoaderExceptions
Note: [0] grabs the most recent Error from the stack
Depends on why you want to rate limit.
If it's to protect against overloading the server, it actually makes sense to put NGINX in front of it, and configure rate limiting there. It makes sense because NGINX uses much less resources, something like a few MB per ten thousand connections. So, if the server is flooded, NGINX will do the rate limiting(using an insignificant amount of resources) and only pass the allowed traffic to Apache.
If all you're after is simplicity, then use something like mod_evasive.
As usual, if it's to protect against DDoS or DoS attacks, use a service like Cloudflare which also has rate limiting.
They are usually stored in the following folders:
/bin/
/usr/bin/
/sbin/
/usr/sbin/
If you're not sure, use the which
command:
~$ which firefox
/usr/bin/firefox
Using react hooks, you can do following way
const [countryList, setCountries] = useState([]);
setCountries((countryList) => [
...countryList,
"India",
]);
The call stack is implemented by the x86 instruction set and the operating system.
Instructions like push and pop adjust the stack pointer while the operating system takes care of allocating memory as the stack grows for each thread.
The fact that the x86 stack "grows down" from higher to lower addresses make this architecture more susceptible to the buffer overflow attack.
I have done experimentation on this.
It's true that System.gc();
only suggests to run the Garbage Collector.
But calling System.gc();
after setting all references to null
, will improve performance and memory occupation.
If you'd like to link to the root directory you can use
/
, or /index.html
If you'd like to link to a file in the same directory, simply put the file name
<a href="/employees.html">Employees Click Here</a>
To move back a folder, you can use
../
To link to the index page in the employees directory from the root directory, you'd do this
<a href="../employees/index.html">Employees Directory Index Page</a>
Thanks for the original answer here. With python 3 the following line of code:
print(json.dumps(result_dict,ensure_ascii=False))
was ok. Consider trying not writing too much text in the code if it's not imperative.
This might be good enough for the python console. However, to satisfy a server you might need to set the locale as explained here (if it is on apache2) http://blog.dscpl.com.au/2014/09/setting-lang-and-lcall-when-using.html
basically install he_IL or whatever language locale on ubuntu check it is not installed
locale -a
install it where XX is your language
sudo apt-get install language-pack-XX
For example:
sudo apt-get install language-pack-he
add the following text to /etc/apache2/envvrs
export LANG='he_IL.UTF-8'
export LC_ALL='he_IL.UTF-8'
Than you would hopefully not get python errors on from apache like:
print (js) UnicodeEncodeError: 'ascii' codec can't encode characters in position 41-45: ordinal not in range(128)
Also in apache try to make utf the default encoding as explained here:
How to change the default encoding to UTF-8 for Apache?
Do it early because apache errors can be pain to debug and you can mistakenly think it's from python which possibly isn't the case in that situation
It's not that your file is partially downloaded. It fails authentication and hence downloads e.g "index.html" but it names it myfile.zip (since this is what you want to download).
I followed the link suggested by @thomasbabuj and figured it out eventually.
You should try adding --auth-no-challenge
and as @thomasbabuj suggested replace your password entry
I.e
wget --auth-no-challenge --user=myusername --ask-password https://test.mydomain.com/files/myfile.zip
You can use std::to_string in C++11
int i = 3;
std::string str = std::to_string(i);
\b\d+,
\b------->word boundary
\d+------>one or digit
,-------->containing commas,
Eg:
sddsgg 70,000 sdsfdsf fdgfdg70,00
sfsfsd 5,44,4343 5.7788,44 555
It will match:
70,
5,
44,
,44
example:
c++ -Wall filefork.cpp -lrt -O2
For gcc
version 4.6.1, -lrt
must be after filefork.cpp otherwise you get a link error.
Some older gcc
version doesn't care about the position.
I just created my own version using CSS. As I need to disabled, then when document is ready use jQuery to make active. So that way a user cannot click on a button until after the document is ready. So i can substitute with AJAX instead. The way I came up with, was to add a class to the anchor tag itself and remove the class when document is ready. Could re-purpose this for your needs.
CSS:
a.disabled{
pointer-events: none;
cursor: default;
}
HTML:
<a class="btn btn-info disabled">Link Text</a>
JS:
$(function(){
$('a.disabled').on('click',function(event){
event.preventDefault();
}).removeClass('disabled');
});
Simple solution that works:
yarn test -g fileName
or
npm test -g fileName
Example:
yarn test -g cancelTransaction
or
npm test -g cancelTransaction
More about test filters:
Test Filters
--fgrep, -f Only run tests containing this string [string]
--grep, -g Only run tests matching this string or regexp [string]
--invert, -i Inverts --grep and --fgrep matches [boolean]
Run the below command to create a migration file:
rails g migration ChangeHasedPasswordToHashedPassword
Then in the file generated in the db/migrate
folder, write rename_column
as below:
class ChangeOldCoulmnToNewColumn < ActiveRecord::Migration
def change
rename_column :table_name, :hased_password, :hashed_password
end
end
I had a similar problem, when I wanted to create a command, \dx
, to abbreviate \;\mathrm{d}x
(i.e. put an extra space before the differential of the integral and have the "d" upright as well). But then I also wanted to make it flexible enough to include the variable of integration as an optional argument. I put the following code in the preamble.
\usepackage{ifthen}
\newcommand{\dx}[1][]{%
\ifthenelse{ \equal{#1}{} }
{\ensuremath{\;\mathrm{d}x}}
{\ensuremath{\;\mathrm{d}#1}}
}
Then
\begin{document}
$$\int x\dx$$
$$\int t\dx[t]$$
\end{document}
If you have integers in your file fscanf returns 1 until integer occurs. For example:
FILE *in = fopen("./task.in", "r");
int length = 0;
int counter;
int sequence;
for ( int i = 0; i < 10; i++ ) {
counter = fscanf(in, "%d", &sequence);
if ( counter == 1 ) {
length += 1;
}
}
To find out the end of the file with symbols you can use EOF. For example:
char symbol;
FILE *in = fopen("./task.in", "r");
for ( ; fscanf(in, "%c", &symbol) != EOF; ) {
printf("%c", symbol);
}
For zsh
the syntax is slightly different, but still shorter than most answers here:
> str1='mAtCh'
> str2='MaTcH'
> [[ "$str1:u" = "$str2:u" ]] && echo 'Strings Match!'
Strings Match!
>
This will convert both strings to uppercase before the comparison.
Another method makes use zsh's globbing flags
, which allows us to directly make use of case-insensitive matching by using the i
glob flag:
setopt extendedglob
[[ $str1 = (#i)$str2 ]] && echo "Match success"
[[ $str1 = (#i)match ]] && echo "Match success"
I have found one solution to this, not saying it's the best one, but it feels clean to me and doesn't require any major changes to my code. My code looked similar to yours until I realized it didn't work.
My Base Class
public class MyBaseClass
{
public string BaseProperty1 { get; set; }
public string BaseProperty2 { get; set; }
public string BaseProperty3 { get; set; }
public string BaseProperty4 { get; set; }
public string BaseProperty5 { get; set; }
}
My Derived Class
public class MyDerivedClass : MyBaseClass
{
public string DerivedProperty1 { get; set; }
public string DerivedProperty2 { get; set; }
public string DerivedProperty3 { get; set; }
}
Previous method to get a populated base class
public MyBaseClass GetPopulatedBaseClass()
{
var myBaseClass = new MyBaseClass();
myBaseClass.BaseProperty1 = "Something"
myBaseClass.BaseProperty2 = "Something else"
myBaseClass.BaseProperty3 = "Something more"
//etc...
return myBaseClass;
}
Before I was trying this, which gave me a unable to cast error
public MyDerivedClass GetPopulatedDerivedClass()
{
var newDerivedClass = (MyDerivedClass)GetPopulatedBaseClass();
newDerivedClass.UniqueProperty1 = "Some One";
newDerivedClass.UniqueProperty2 = "Some Thing";
newDerivedClass.UniqueProperty3 = "Some Thing Else";
return newDerivedClass;
}
I changed my code as follows bellow and it seems to work and makes more sense now:
Old
public MyBaseClass GetPopulatedBaseClass()
{
var myBaseClass = new MyBaseClass();
myBaseClass.BaseProperty1 = "Something"
myBaseClass.BaseProperty2 = "Something else"
myBaseClass.BaseProperty3 = "Something more"
//etc...
return myBaseClass;
}
New
public void FillBaseClass(MyBaseClass myBaseClass)
{
myBaseClass.BaseProperty1 = "Something"
myBaseClass.BaseProperty2 = "Something else"
myBaseClass.BaseProperty3 = "Something more"
//etc...
}
Old
public MyDerivedClass GetPopulatedDerivedClass()
{
var newDerivedClass = (MyDerivedClass)GetPopulatedBaseClass();
newDerivedClass.UniqueProperty1 = "Some One";
newDerivedClass.UniqueProperty2 = "Some Thing";
newDerivedClass.UniqueProperty3 = "Some Thing Else";
return newDerivedClass;
}
New
public MyDerivedClass GetPopulatedDerivedClass()
{
var newDerivedClass = new MyDerivedClass();
FillBaseClass(newDerivedClass);
newDerivedClass.UniqueProperty1 = "Some One";
newDerivedClass.UniqueProperty2 = "Some Thing";
newDerivedClass.UniqueProperty3 = "Some Thing Else";
return newDerivedClass;
}
Call
setSupportActionBar(toolbar)
inside
onViewCreated(...)
of Fragment
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);
((MainActivity)getActivity()).setSupportActionBar(toolbar);
setHasOptionsMenu(true);
}
This probably won't help too many people, but this was my case: I was using the Jira Rest Api and was using my personal credentials (the ones I use to log into Jira). I had updated my Jira password but forgot to update them in my code. I got the 403 error, I tried updating my password in the code but still got the error.
The solution: I tried logging into Jira (from their login page) and I had to enter the text to prove I wasn't a bot. After that I tried again from the code and it worked. Takeaway: The server may have locked you out.
try (Stream<String> stream = Files.lines(Paths.get(fileName))) {
stream.forEach(System.out::println);
}
You can divide column of dtype
timedelta
by np.timedelta64(1, 'D')
, but output is not int
, but float
, because NaN
values:
df_test['Difference'] = df_test['Difference'] / np.timedelta64(1, 'D')
print (df_test)
First_Date Second Date Difference
0 2016-02-09 2015-11-19 82.0
1 2016-01-06 2015-11-30 37.0
2 NaT 2015-12-04 NaN
3 2016-01-06 2015-12-08 29.0
4 NaT 2015-12-09 NaN
5 2016-01-07 2015-12-11 27.0
6 NaT 2015-12-12 NaN
7 NaT 2015-12-14 NaN
8 2016-01-06 2015-12-14 23.0
9 NaT 2015-12-15 NaN
If you are not willing to try regex (which you should), you can use this:
s.replace('\n\n','\n')
Repeat this several times to make sure there is no blank line left. Or chaining the commands:
s.replace('\n\n','\n').replace('\n\n','\n')
Just to encourage you to use regex, here are two introductory videos that I find intuitive:
• Regular Expressions (Regex) Tutorial
• Python Tutorial: re Module
You can very easily do this by
hr{_x000D_
transform: rotate(90deg);_x000D_
}
_x000D_
<html>_x000D_
<head>_x000D_
</head>_x000D_
<body>_x000D_
<hr>_x000D_
</body> _x000D_
</html>
_x000D_
Activity.java
@Override
public void onConfigurationChanged(Configuration newConfig) {
try {
super.onConfigurationChanged(newConfig);
if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
// land
} else if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
// port
}
} catch (Exception ex) {
}
AndroidManifest.xml
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name="QRCodeActivity" android:label="@string/app_name"
android:screenOrientation="landscape" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Using Environment class we can get application. Properties values
@Autowired,
private Environment env;
and access using
String password =env.getProperty(your property key);
var seconds_inputs = document.getElementsByClassName('deal_left_seconds');
var total_timers = seconds_inputs.length;
for ( var i = 0; i < total_timers; i++){
var str_seconds = 'seconds_'; var str_seconds_prod_id = 'seconds_prod_id_';
var seconds_prod_id = seconds_inputs[i].getAttribute('data-value');
var cal_seconds = seconds_inputs[i].getAttribute('value');
eval('var ' + str_seconds + seconds_prod_id + '= ' + cal_seconds + ';');
eval('var ' + str_seconds_prod_id + seconds_prod_id + '= ' + seconds_prod_id + ';');
}
function timer() {
for ( var i = 0; i < total_timers; i++) {
var seconds_prod_id = seconds_inputs[i].getAttribute('data-value');
var days = Math.floor(eval('seconds_'+seconds_prod_id) / 24 / 60 / 60);
var hoursLeft = Math.floor((eval('seconds_'+seconds_prod_id)) - (days * 86400));
var hours = Math.floor(hoursLeft / 3600);
var minutesLeft = Math.floor((hoursLeft) - (hours * 3600));
var minutes = Math.floor(minutesLeft / 60);
var remainingSeconds = eval('seconds_'+seconds_prod_id) % 60;
function pad(n) {
return (n < 10 ? "0" + n : n);
}
document.getElementById('deal_days_' + seconds_prod_id).innerHTML = pad(days);
document.getElementById('deal_hrs_' + seconds_prod_id).innerHTML = pad(hours);
document.getElementById('deal_min_' + seconds_prod_id).innerHTML = pad(minutes);
document.getElementById('deal_sec_' + seconds_prod_id).innerHTML = pad(remainingSeconds);
if (eval('seconds_'+ seconds_prod_id) == 0) {
clearInterval(countdownTimer);
document.getElementById('deal_days_' + seconds_prod_id).innerHTML = document.getElementById('deal_hrs_' + seconds_prod_id).innerHTML = document.getElementById('deal_min_' + seconds_prod_id).innerHTML = document.getElementById('deal_sec_' + seconds_prod_id).innerHTML = pad(0);
} else {
var value = eval('seconds_'+seconds_prod_id);
value--;
eval('seconds_' + seconds_prod_id + '= ' + value + ';');
}
}
}
var countdownTimer = setInterval('timer()', 1000);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="hidden" class="deal_left_seconds" data-value="1" value="10">
<div class="box-wrapper">
<div class="date box"> <span class="key" id="deal_days_1">00</span> <span class="value">DAYS</span> </div>
</div>
<div class="box-wrapper">
<div class="hour box"> <span class="key" id="deal_hrs_1">00</span> <span class="value">HRS</span> </div>
</div>
<div class="box-wrapper">
<div class="minutes box"> <span class="key" id="deal_min_1">00</span> <span class="value">MINS</span> </div>
</div>
<div class="box-wrapper hidden-md">
<div class="seconds box"> <span class="key" id="deal_sec_1">0p0</span> <span class="value">SEC</span> </div>
</div>
_x000D_
Try this:
str = String.valueOf(a)+String.valueOf(b)+String.valueOf(c);
Output:
ice
if [[ ${1:+isset} ]]
then echo "It was set and not null." >&2
else echo "It was not set or it was null." >&2
fi
if [[ ${1+isset} ]]
then echo "It was set but might be null." >&2
else echo "It was was not set." >&2
fi
The axios library creates a Promise() object. Promise is a built-in object in JavaScript ES6. When this object is instantiated using the new keyword, it takes a function as an argument. This single function in turn takes two arguments, each of which are also functions — resolve and reject.
Promises execute the client side code and, due to cool Javascript asynchronous flow, could eventually resolve one or two things, that resolution (generally considered to be a semantically equivalent to a Promise's success), or that rejection (widely considered to be an erroneous resolution). For instance, we can hold a reference to some Promise object which comprises a function that will eventually return a response object (that would be contained in the Promise object). So one way we could use such a promise is wait for the promise to resolve to some kind of response.
You might raise we don't want to be waiting seconds or so for our API to return a call! We want our UI to be able to do things while waiting for the API response. Failing that we would have a very slow user interface. So how do we handle this problem?
Well a Promise is asynchronous. In a standard implementation of engines responsible for executing Javascript code (such as Node, or the common browser) it will resolve in another process while we don't know in advance what the result of the promise will be. A usual strategy is to then send our functions (i.e. a React setState function for a class) to the promise, resolved depending on some kind of condition (dependent on our choice of library). This will result in our local Javascript objects being updated based on promise resolution. So instead of getters and setters (in traditional OOP) you can think of functions that you might send to your asynchronous methods.
I'll use Fetch in this example so you can try to understand what's going on in the promise and see if you can replicate my ideas within your axios code. Fetch is basically similar to axios without the innate JSON conversion, and has a different flow for resolving promises (which you should refer to the axios documentation to learn).
GetCache.js
const base_endpoint = BaseEndpoint + "cache/";
// Default function is going to take a selection, date, and a callback to execute.
// We're going to call the base endpoint and selection string passed to the original function.
// This will make our endpoint.
export default (selection, date, callback) => {
fetch(base_endpoint + selection + "/" + date)
// If the response is not within a 500 (according to Fetch docs) our promise object
// will _eventually_ resolve to a response.
.then(res => {
// Lets check the status of the response to make sure it's good.
if (res.status >= 400 && res.status < 600) {
throw new Error("Bad response");
}
// Let's also check the headers to make sure that the server "reckons" its serving
//up json
if (!res.headers.get("content-type").includes("application/json")) {
throw new TypeError("Response not JSON");
}
return res.json();
})
// Fulfilling these conditions lets return the data. But how do we get it out of the promise?
.then(data => {
// Using the function we passed to our original function silly! Since we've error
// handled above, we're ready to pass the response data as a callback.
callback(data);
})
// Fetch's promise will throw an error by default if the webserver returns a 500
// response (as notified by the response code in the HTTP header).
.catch(err => console.error(err));
};
Now we've written our GetCache method, lets see what it looks like to update a React component's state as an example...
Some React Component.jsx
// Make sure you import GetCache from GetCache.js!
resolveData() {
const { mySelection, date } = this.state; // We could also use props or pass to the function to acquire our selection and date.
const setData = data => {
this.setState({
data: data,
loading: false
// We could set loading to true and display a wee spinner
// while waiting for our response data,
// or rely on the local state of data being null.
});
};
GetCache("mySelelection", date, setData);
}
Ultimately, you don't "return" data as such, I mean you can but it's more idiomatic to change your way of thinking... Now we are sending data to asynchronous methods.
Happy Coding!
on python3:
from time import sleep, perf_counter as pc
t0 = pc()
sleep(1)
print(pc()-t0)
elegant and short.
It's important to evaluate the different ways you can create an HttpClient, and part of that is understanding HttpClientFactory.
This is not a direct answer I know - but you're better off starting here than ending up with new HttpClient(...)
everywhere.
Beware of properties inherited from the object's prototype (which could happen if you're including any libraries on your page, such as older versions of Prototype). You can check for this by using the object's hasOwnProperty()
method. This is generally a good idea when using for...in
loops:
var user = {};
function setUsers(data) {
for (var k in data) {
if (data.hasOwnProperty(k)) {
user[k] = data[k];
}
}
}
In Tomcat 7 (under Windows server) I didn't add or edit anything to any configuration file. I just renamed the ROOT folder to something else and renamed my application folder to ROOT and it worked fine.
This problem was fixed for me by using http version of repository:
npm config set registry http://registry.npmjs.org/
For me I had a typo and my remote branch didn't exist
Use git branch -a
to list remote branches
MockitoAnnotations & the runner have been well discussed above, so I'm going to throw in my tuppence for the unloved:
XXX mockedXxx = mock(XXX.class);
I use this because I find it a little bit more descriptive and I prefer (not out right ban) unit tests not to use member variables as I like my tests to be (as much as they can be) self contained.
Make a shortcut pointing to cmd.exe somwhere (e.g. desktop) then right-click on the copy and select "properties". Navigate to the "Shortcut" menu and change the "Start in:" directory.
You can't do it with only the standard library as the standard library doesn't have any timezones. You need pytz or dateutil.
>>> from datetime import datetime
>>> now = datetime.utcnow()
>>> from dateutil import tz
>>> HERE = tz.tzlocal()
>>> UTC = tz.gettz('UTC')
The Conversion:
>>> gmt = now.replace(tzinfo=UTC)
>>> gmt.astimezone(HERE)
datetime.datetime(2010, 12, 30, 15, 51, 22, 114668, tzinfo=tzlocal())
Or well, you can do it without pytz or dateutil by implementing your own timezones. But that would be silly.
$python 2.7.8
from timeit import timeit
import numpy
timeit("list(0 for i in xrange(0, 100000))", number=1000)
> 8.173301935195923
timeit("[0 for i in xrange(0, 100000)]", number=1000)
> 4.881675958633423
timeit("[0] * 100000", number=1000)
> 0.6624710559844971
timeit('list(itertools.repeat(0, 100000))', 'import itertools', number=1000)
> 1.0820629596710205
You should use [0] * n
to generate a list with n
zeros.
See why [] is faster than list()
There is a gotcha though, both itertools.repeat
and [0] * n
will create lists whose elements refer to same id
. This is not a problem with immutable objects like integers or strings but if you try to create list of mutable objects like a list of lists ([[]] * n
) then all the elements will refer to the same object.
a = [[]] * 10
a[0].append(1)
a
> [[1], [1], [1], [1], [1], [1], [1], [1], [1], [1]]
[0] * n
will create the list immediately while repeat
can be used to create the list lazily when it is first accessed.
If you're dealing with really large amount of data and your problem doesn't need variable length of list or multiple data types within the list it is better to use numpy
arrays.
timeit('numpy.zeros(100000, numpy.int)', 'import numpy', number=1000)
> 0.057849884033203125
numpy
arrays will also consume less memory.
One possible option to implement such behavior is
PUT /groups/api/v1/groups/{group id}/status
{
"Status":"Activated"
}
And obviously, if someone need to deactivate it, PUT
will have Deactivated
status in JSON.
In case of necessity of mass activation/deactivation, PATCH
can step into the game (not for exact group, but for groups
resource:
PATCH /groups/api/v1/groups
{
{ “op”: “replace”, “path”: “/group1/status”, “value”: “Activated” },
{ “op”: “replace”, “path”: “/group7/status”, “value”: “Activated” },
{ “op”: “replace”, “path”: “/group9/status”, “value”: “Deactivated” }
}
In general this is idea as @Andrew Dobrowolski suggesting, but with slight changes in exact realization.
For someone looking to solve same by using maven. Add below dependency in POM:
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<version>7.0.0.jre8</version>
</dependency>
And use below code for connection:
String connectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=master;user=sa;password=your_password";
try {
System.out.print("Connecting to SQL Server ... ");
try (Connection connection = DriverManager.getConnection(connectionUrl)) {
System.out.println("Done.");
}
} catch (Exception e) {
System.out.println();
e.printStackTrace();
}
Look for this link for other CRUD type of queries.
Looks like Facebook disabled passing parameters to the sharer.
We have changed the behavior of the sharer plugin to be consistent with other plugins and features on our platform.
The sharer will no longer accept custom parameters and facebook will pull the information that is being displayed in the preview the same way that it would appear on facebook as a post from the url OG meta tags.
Here's the URL to the post: https://developers.facebook.com/x/bugs/357750474364812/
According to the Python 2.7.2 documentation:
An object is hashable if it has a hash value which never changes during its lifetime (it needs a hash() method), and can be compared to other objects (it needs an eq() or cmp() method). Hashable objects which compare equal must have the same hash value.
Hashability makes an object usable as a dictionary key and a set member, because these data structures use the hash value internally.
All of Python’s immutable built-in objects are hashable, while no mutable containers (such as lists or dictionaries) are. Objects which are instances of user-defined classes are hashable by default; they all compare unequal, and their hash value is their id().
A tuple is immutable in the sense that you cannot add, remove or replace its elements, but the elements themselves may be mutable. List's hash value depends on the hash values of its elements, and so it changes when you change the elements.
Using id's for list hashes would imply that all lists compare differently, which would be surprising and inconvenient.
Although probably not the best method you could add:
#div1 {
...
font-size:0;
}
The problem with unhandled ObjectDisposedException happens when the process is timed out. In such case the other parts of the condition:
if (process.WaitForExit(timeout)
&& outputWaitHandle.WaitOne(timeout)
&& errorWaitHandle.WaitOne(timeout))
are not executed. I resolved this problem in a following way:
using (AutoResetEvent outputWaitHandle = new AutoResetEvent(false))
using (AutoResetEvent errorWaitHandle = new AutoResetEvent(false))
{
using (Process process = new Process())
{
// preparing ProcessStartInfo
try
{
process.OutputDataReceived += (sender, e) =>
{
if (e.Data == null)
{
outputWaitHandle.Set();
}
else
{
outputBuilder.AppendLine(e.Data);
}
};
process.ErrorDataReceived += (sender, e) =>
{
if (e.Data == null)
{
errorWaitHandle.Set();
}
else
{
errorBuilder.AppendLine(e.Data);
}
};
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
if (process.WaitForExit(timeout))
{
exitCode = process.ExitCode;
}
else
{
// timed out
}
output = outputBuilder.ToString();
}
finally
{
outputWaitHandle.WaitOne(timeout);
errorWaitHandle.WaitOne(timeout);
}
}
}
Dirk's answer is good but if you need the sort to persist you'll want to apply the sort back onto the name of that data frame. Using the example code:
dd <- dd[with(dd, order(-z, b)), ]
Just adding .First
to your bananaToken
should do it:
foodJsonObj["food"]["fruit"]["orange"].Parent.AddAfterSelf(bananaToken
.First
);
.First
basically moves past the {
to make it a JProperty
instead of a JToken
.
@Brian Rogers, Thanks I forgot the .Parent
. Edited
Look at the Default.aspx/Default.aspx.cs
and the Global.asax.cs
You can set up a default route:
routes.MapRoute(
"Default", // Route name
"", // URL with parameters
new { controller = "Home", action = "Index"} // Parameter defaults
);
Just change the Controller/Action names to your desired default. That should be the last route in the Routing Table.
An easy fix to this would be going to the SQL tab and just simply put in the code
ALTER TABLE `tablename`
ADD PRIMARY KEY (`id`);
Asuming that you have a row named id.
Just in case someone is working with Eclipse
Windows 8.1 OS | Eclipse Idle Luna
Declare top level variable private String username
Eclipse kindly generate a warning on the left of your screen click that warning and couple of suggestions show up, then select generate.
You could compile and link in one command:
gcc file1.c file2.c -o myprogram
And run with:
./myprogram
But to answer the question as asked, simply pass the object files to gcc
:
gcc file1.o file2.o -o myprogram
Best check for this problem : (If you are behind proxy),(tested on ubuntu 18.04), (will work on other ubuntu also),(mostly error in : https_proxy="http://192.168.0.251:808/)
Check these files:
#sudo cat /etc/environment :
http_proxy="http://192.168.0.251:808/"
https_proxy="http://192.168.0.251:808/"
ftp_proxy="ftp://192.168.0.251:808/"
socks_proxy="socks://192.168.0.251:808/"
#sudo cat /etc/apt/apt.conf :
Acquire::http::proxy "http://192.168.0.251:808/";
Acquire::https::proxy "http://192.168.0.251:808/";
Acquire::ftp::proxy "ftp://192.168.0.251:808/";
Acquire::socks::proxy "socks://192.168.0.251:808/";
Add docker stable repo
#sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Run apt-get update:
#sudo apt-get update
Check Docker CE
#apt-cache policy docker-ce
install Docker
#sudo apt-get install docker-ce
See an example below (this example uses the native JSON object). My changes are commented in CAPITALS:
function Foo(obj) // CONSTRUCTOR CAN BE OVERLOADED WITH AN OBJECT
{
this.a = 3;
this.b = 2;
this.test = function() {return this.a*this.b;};
// IF AN OBJECT WAS PASSED THEN INITIALISE PROPERTIES FROM THAT OBJECT
for (var prop in obj) this[prop] = obj[prop];
}
var fooObj = new Foo();
alert(fooObj.test() ); //Prints 6
// INITIALISE A NEW FOO AND PASS THE PARSED JSON OBJECT TO IT
var fooJSON = new Foo(JSON.parse('{"a":4,"b":3}'));
alert(fooJSON.test() ); //Prints 12
Might want to check out jQuery Timer to manage one or multiple timers.
http://code.google.com/p/jquery-timer/
var timer = $.timer(yourfunction, 10000);
function yourfunction() { alert('test'); }
Then you can control it with:
timer.play();
timer.pause();
timer.toggle();
timer.once();
etc...
To answer the title of your question directly because this comes up in Google first:
YES, TypeScript can export a function!
Here is a direct quote from the TS Documentation:
"Any declaration (such as a variable, function, class, type alias, or interface) can be exported by adding the export keyword."
I put an answer that might help here: jQuery simplemodal disable scrolling
It shows how to turn off the scroll bars without shifting the text around. You can ignore the parts about simplemodal.
Variable scope in Ruby is controlled by sigils to some degree. Variables starting with $
are global, variables with @
are instance variables, @@
means class variables, and names starting with a capital letter are constants. All other variables are locals. When you open a class or method, that's a new scope, and locals available in the previous scope aren't available.
I generally prefer to avoid creating global variables. There are two techniques that generally achieve the same purpose that I consider cleaner:
Create a constant in a module. So in this case, you would put all the classes that need the offset in the module Foo
and create a constant Offset
, so then all the classes could access Foo::Offset
.
Define a method to access the value. You can define the method globally, but again, I think it's better to encapsulate it in a module or class. This way the data is available where you need it and you can even alter it if you need to, but the structure of your program and the ownership of the data will be clearer. This is more in line with OO design principles.
If you don't have to use any specific SVN and you are using GitHub you can use their SVN connector.
More information is here: Collaborating on GitHub with Subversion
Other solutions mix regex syntaxes. To use perl/PCRE patterns for both search and replace, and only process matching files, this works quite well:
grep -rlIZPi 'match1' | xargs -0r perl -pi -e 's/match2/replace/gi;'
match1
and match2
are usually identical but match1
can be simplified to remove more advanced features that are only relevant to the substitution, e.g. capturing groups.
Translation: grep
recursively and list matching filenames, each separated by nul to protect any special characters; pipe any filenames to xargs
which is expecting a nul-separated list; if any filenames are received, pass them to perl
to perform the actual substitutions.
For case-sensitive matching, drop the i
flag from grep
and the i
pattern modifier from the s///
expression, but not the i
flag from perl
itself. Remove the I
flag from grep
to include binary files.
You can use QString.arg like this
QString my_formatted_string = QString("%1/%2-%3.txt").arg("~", "Tom", "Jane");
// You get "~/Tom-Jane.txt"
This method is preferred over sprintf because:
Changing the position of the string without having to change the ordering of substitution, e.g.
// To get "~/Jane-Tom.txt"
QString my_formatted_string = QString("%1/%3-%2.txt").arg("~", "Tom", "Jane");
Or, changing the type of the arguments doesn't require changing the format string, e.g.
// To get "~/Tom-1.txt"
QString my_formatted_string = QString("%1/%2-%3.txt").arg("~", "Tom", QString::number(1));
As you can see, the change is minimal. Of course, you generally do not need to care about the type that is passed into QString::arg() since most types are correctly overloaded.
One drawback though: QString::arg() doesn't handle std::string. You will need to call: QString::fromStdString() on your std::string to make it into a QString before passing it to QString::arg(). Try to separate the classes that use QString from the classes that use std::string. Or if you can, switch to QString altogether.
UPDATE: Examples are updated thanks to Frank Osterfeld.
UPDATE: Examples are updated thanks to alexisdm.
Angular 2 Provides a very nice feature called as Opaque Constants. Create a class & Define all the constants there using opaque constants.
import { OpaqueToken } from "@angular/core";
export let APP_CONFIG = new OpaqueToken("my.config");
export interface MyAppConfig {
apiEndpoint: string;
}
export const AppConfig: MyAppConfig = {
apiEndpoint: "http://localhost:8080/api/"
};
Inject it in providers in app.module.ts
You will be able to use it across every components.
EDIT for Angular 4 :
For Angular 4 the new concept is Injection Token & Opaque token is Deprecated in Angular 4.
Injection Token Adds functionalities on top of Opaque Tokens, it allows to attach type info on the token via TypeScript generics, plus Injection tokens, removes the need of adding @Inject
Example Code
Angular 2 Using Opaque Tokens
const API_URL = new OpaqueToken('apiUrl'); //no Type Check
providers: [
{
provide: DataService,
useFactory: (http, apiUrl) => {
// create data service
},
deps: [
Http,
new Inject(API_URL) //notice the new Inject
]
}
]
Angular 4 Using Injection Tokens
const API_URL = new InjectionToken<string>('apiUrl'); // generic defines return value of injector
providers: [
{
provide: DataService,
useFactory: (http, apiUrl) => {
// create data service
},
deps: [
Http,
API_URL // no `new Inject()` needed!
]
}
]
Injection tokens are designed logically on top of Opaque tokens & Opaque tokens are deprecated in Angular 4.
Just throwing in some coffee.
app.directive 'ngAltFocus', ->
restrict: 'A'
scope: ngAltFocus: '='
link: (scope, el, attrs) ->
scope.$watch 'ngAltFocus', (nv) -> el[0].focus() if nv
You can easily pick image from asset without UIImage(named: "green-square-Retina")
.
Instead use the image object directly from bundle.
Start typing the image name and you will get suggestions with actual image from bundle. It is advisable practice and less prone to error.
See this Stackoverflow answer for reference.
Another way:
var := coalesce (var, 5);
COALESCE is the ANSI equivalent (more or less) of Oracle's NVL function.
If you are popping it in the DOM then try wrapping it in
<pre>
<code>{JSON.stringify(REPLACE_WITH_OBJECT, null, 4)}</code>
</pre>
makes a little easier to visually parse.
function printTable()
{
local -r delimiter="${1}"
local -r data="$(removeEmptyLines "${2}")"
if [[ "${delimiter}" != '' && "$(isEmptyString "${data}")" = 'false' ]]
then
local -r numberOfLines="$(wc -l <<< "${data}")"
if [[ "${numberOfLines}" -gt '0' ]]
then
local table=''
local i=1
for ((i = 1; i <= "${numberOfLines}"; i = i + 1))
do
local line=''
line="$(sed "${i}q;d" <<< "${data}")"
local numberOfColumns='0'
numberOfColumns="$(awk -F "${delimiter}" '{print NF}' <<< "${line}")"
# Add Line Delimiter
if [[ "${i}" -eq '1' ]]
then
table="${table}$(printf '%s#+' "$(repeatString '#+' "${numberOfColumns}")")"
fi
# Add Header Or Body
table="${table}\n"
local j=1
for ((j = 1; j <= "${numberOfColumns}"; j = j + 1))
do
table="${table}$(printf '#| %s' "$(cut -d "${delimiter}" -f "${j}" <<< "${line}")")"
done
table="${table}#|\n"
# Add Line Delimiter
if [[ "${i}" -eq '1' ]] || [[ "${numberOfLines}" -gt '1' && "${i}" -eq "${numberOfLines}" ]]
then
table="${table}$(printf '%s#+' "$(repeatString '#+' "${numberOfColumns}")")"
fi
done
if [[ "$(isEmptyString "${table}")" = 'false' ]]
then
echo -e "${table}" | column -s '#' -t | awk '/^\+/{gsub(" ", "-", $0)}1'
fi
fi
fi
}
function removeEmptyLines()
{
local -r content="${1}"
echo -e "${content}" | sed '/^\s*$/d'
}
function repeatString()
{
local -r string="${1}"
local -r numberToRepeat="${2}"
if [[ "${string}" != '' && "${numberToRepeat}" =~ ^[1-9][0-9]*$ ]]
then
local -r result="$(printf "%${numberToRepeat}s")"
echo -e "${result// /${string}}"
fi
}
function isEmptyString()
{
local -r string="${1}"
if [[ "$(trimString "${string}")" = '' ]]
then
echo 'true' && return 0
fi
echo 'false' && return 1
}
function trimString()
{
local -r string="${1}"
sed 's,^[[:blank:]]*,,' <<< "${string}" | sed 's,[[:blank:]]*$,,'
}
SAMPLE RUNS
$ cat data-1.txt
HEADER 1,HEADER 2,HEADER 3
$ printTable ',' "$(cat data-1.txt)"
+-----------+-----------+-----------+
| HEADER 1 | HEADER 2 | HEADER 3 |
+-----------+-----------+-----------+
$ cat data-2.txt
HEADER 1,HEADER 2,HEADER 3
data 1,data 2,data 3
$ printTable ',' "$(cat data-2.txt)"
+-----------+-----------+-----------+
| HEADER 1 | HEADER 2 | HEADER 3 |
+-----------+-----------+-----------+
| data 1 | data 2 | data 3 |
+-----------+-----------+-----------+
$ cat data-3.txt
HEADER 1,HEADER 2,HEADER 3
data 1,data 2,data 3
data 4,data 5,data 6
$ printTable ',' "$(cat data-3.txt)"
+-----------+-----------+-----------+
| HEADER 1 | HEADER 2 | HEADER 3 |
+-----------+-----------+-----------+
| data 1 | data 2 | data 3 |
| data 4 | data 5 | data 6 |
+-----------+-----------+-----------+
$ cat data-4.txt
HEADER
data
$ printTable ',' "$(cat data-4.txt)"
+---------+
| HEADER |
+---------+
| data |
+---------+
$ cat data-5.txt
HEADER
data 1
data 2
$ printTable ',' "$(cat data-5.txt)"
+---------+
| HEADER |
+---------+
| data 1 |
| data 2 |
+---------+
REF LIB at: https://github.com/gdbtek/linux-cookbooks/blob/master/libraries/util.bash
Just to clarify, do you have JAVA_HOME set as a system variable or set in Eclipse classpath variables? I'm pretty sure (but not totally sure!) that the system variable is used by the command line compiler (and Ant), but that Eclipse modifies this accroding to the JDK used
Here's something important that's missing from the other answers: the command-line parameters are exposed to your Ruby shell script through the ARGV (global) array.
So, if you had a script called my_shell_script:
#!/usr/bin/env ruby
puts "I was passed: "
ARGV.each do |value|
puts value
end
...make it executable (as others have mentioned):
chmod u+x my_shell_script
And call it like so:
> ./my_shell_script one two three four five
You'd get this:
I was passed:
one
two
three
four
five
The arguments work nicely with filename expansion:
./my_shell_script *
I was passed:
a_file_in_the_current_directory
another_file
my_shell_script
the_last_file
Most of this only works on UNIX (Linux, Mac OS X), but you can do similar (though less convenient) things in Windows.
The solution by Eerik Sven Puudist ...
var isSubmitting = false;
$(document).ready(function () {
$('form').submit(function(){
isSubmitting = true
})
$('form').data('initial-state', $('form').serialize());
$(window).on('beforeunload', function() {
if (!isSubmitting && $('form').serialize() != $('form').data('initial-state')){
return 'You have unsaved changes which will not be saved.'
}
});
})
... spontaneously did the job for me in a complex object-oriented setting without any changes necessary.
The only change I applied was to refer to the concrete form (only one form per file) called "formForm" ('form' -> '#formForm'):
<form ... id="formForm" name="formForm" ...>
Especially well done is the fact that the submit button is being "left alone".
Additionally, it works for me also with the lastest version of Firefox (as of February 7th, 2019).
You can use:
EQU - equal
NEQ - not equal
LSS - less than
LEQ - less than or equal
GTR - greater than
GEQ - greater than or equal
AVOID USING:
() ! ~ - * / % + - << >> & | = *= /= %= += -= &= ^= |= <<= >>=
I wrote a simple bash script to get around this stupid problem. Pass in the path to a named copy of your provision (downloaded from developer.apple.com) and it will identify the matching GUID-renamed file in your provision library:
#!/bin/bash
if [ -z "$1" ] ; then
echo -e "\nUsage: $0 <myprovision>\n"
exit
fi
if [ ! -f "$1" ] ; then
echo -e "\nFile not found: $1\n"
exit
fi
provisionpath="$HOME/Library/MobileDevice/Provisioning Profiles"
provisions=$( ls "$provisionpath" )
for i in $provisions ; do
match=$( diff "$1" "$provisionpath/$i" )
if [ "$match" = "" ] ; then
echo -e "\nmatch: $provisionpath/$i\n"
fi
done
You're looking for the document.documentElement.scrollTop
property.
The obj
directory is for intermediate object files and other transient data files that are generated by the compiler or build system during a build. The bin
directory is the directory that final output binaries (and any dependencies or other deployable files) will be written to.
You can change the actual directories used for both purposes within the project settings, if you like.
In the .css try
.jumbotron {_x000D_
background-color:red !important; _x000D_
}
_x000D_
In the example you gave, there is no difference, in terms of output, between append
and +=
. But there is a difference between append
and +
(which the question originally asked about).
>>> a = []
>>> id(a)
11814312
>>> a.append("hello")
>>> id(a)
11814312
>>> b = []
>>> id(b)
11828720
>>> c = b + ["hello"]
>>> id(c)
11833752
>>> b += ["hello"]
>>> id(b)
11828720
As you can see, append
and +=
have the same result; they add the item to the list, without producing a new list. Using +
adds the two lists and produces a new list.
Yep, both and
and or
operators short-circuit -- see the docs.
You can use the methods of the File class: http://docs.oracle.com/javase/7/docs/api/java/io/File.html
That is a constraint on the generic parameter T
. It must be a class
(reference type) and must have a public parameter-less default constructor.
That means T
can't be an int
, float
, double
, DateTime
or any other struct
(value type).
It could be a string
, or any other custom reference type, as long as it has a default or parameter-less constructor.
Previous answers are correct but here is one more way of doing this and some tips:
Option #1 Go to you Jenkins job and search for "add build step" and then just copy and paste your script there
Option #2 Go to Jenkins and do the same again "add build step" but this time put the fully qualified path for your script in there example : ./usr/somewhere/helloWorld.sh
things to watch for /tips:
SQL injection should not be prevented by trying to validate your input; instead, that input should be properly escaped before being passed to the database.
How to escape input totally depends on what technology you are using to interface with the database. In most cases and unless you are writing bare SQL (which you should avoid as hard as you can) it will be taken care of automatically by the framework so you get bulletproof protection for free.
You should explore this question further after you have decided exactly what your interfacing technology will be.
Zeep is a decent SOAP library for Python that matches what you're asking for: http://docs.python-zeep.org
Typically, software will run in different environments:
development
testing
staging
production
The dependencies which are declared in the require
section of composer.json
are typically dependencies which are required for running an application or a package in
staging
production
environments, whereas the dependencies declared in the require-dev
section are typically dependencies which are required in
developing
testing
environments.
For example, in addition to the packages used for actually running an application, packages might be needed for developing the software, such as:
friendsofphp/php-cs-fixer
(to detect and fix coding style issues)squizlabs/php_codesniffer
(to detect and fix coding style issues)phpunit/phpunit
(to drive the development using tests)Now, in development
and testing
environments, you would typically run
$ composer install
to install both production
and development
dependencies.
However, in staging
and production
environments, you only want to install dependencies which are required for running the application, and as part of the deployment process, you would typically run
$ composer install --no-dev
to install only production
dependencies.
In other words, the sections
require
require-dev
indicate to composer
which packages should be installed when you run
$ composer install
or
$ composer install --no-dev
That is all.
Note Development dependencies of packages your application or package depend on will never be installed
For reference, see:
You could also create a custom model field type - see http://docs.djangoproject.com/en/dev/howto/custom-model-fields/#howto-custom-model-fields
In this case, you could 'inherit' from the built-in IntegerField and override its validation logic.
The more I think about this, I realize how useful this would be for many Django apps. Perhaps a IntegerRangeField type could be submitted as a patch for the Django devs to consider adding to trunk.
This is working for me:
from django.db import models
class IntegerRangeField(models.IntegerField):
def __init__(self, verbose_name=None, name=None, min_value=None, max_value=None, **kwargs):
self.min_value, self.max_value = min_value, max_value
models.IntegerField.__init__(self, verbose_name, name, **kwargs)
def formfield(self, **kwargs):
defaults = {'min_value': self.min_value, 'max_value':self.max_value}
defaults.update(kwargs)
return super(IntegerRangeField, self).formfield(**defaults)
Then in your model class, you would use it like this (field being the module where you put the above code):
size = fields.IntegerRangeField(min_value=1, max_value=50)
OR for a range of negative and positive (like an oscillator range):
size = fields.IntegerRangeField(min_value=-100, max_value=100)
What would be really cool is if it could be called with the range operator like this:
size = fields.IntegerRangeField(range(1, 50))
But, that would require a lot more code since since you can specify a 'skip' parameter - range(1, 50, 2) - Interesting idea though...
If you want to refer to a nested table by multiple keys you can just assign them to separate keys. The tables are not duplicated, and still reference the same values.
arr = {}
apples = {'a', "red", 5 }
arr.apples = apples
arr[1] = apples
This code block lets you iterate through all the key-value pairs in a table (http://lua-users.org/wiki/TablesTutorial):
for k,v in pairs(t) do
print(k,v)
end
From http://www.codeave.com/javascript/code.asp?u_log=7004:
var input = document.getElementById('myTextInput');_x000D_
input.focus();_x000D_
input.select();
_x000D_
<input id="myTextInput" value="Hello world!" />
_x000D_
I ran into this issue using Phusion Passenger (running as an nginx module) on a Redhat server. We already had a Javascript runtime installed. Other Rails apps in the same parent directory worked fine.
It turned out that we had a permissions issue. Run "ls -l" and see if the folder has the same owner and group as other working apps on the system. I had to run chown and chgrp on the folder (with the recursive switch) to fix it.
grep -l "classname" *.jar
gives you the name of the jar
find . -name "*.jar" -exec jar -t -f {} \; | grep "classname"
gives you the package of the class
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
public class MultiString {
public HashMap<String, Integer> countIntem( String[] array ) {
Arrays.sort(array);
HashMap<String, Integer> map = new HashMap<String, Integer>();
Integer count = 0;
String first = array[0];
for( int counter = 0; counter < array.length; counter++ ) {
if(first.hashCode() == array[counter].hashCode()) {
count = count + 1;
} else {
map.put(first, count);
count = 1;
}
first = array[counter];
map.put(first, count);
}
return map;
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String[] array = { "name1", "name1", "name2", "name2", "name2",
"name3", "name1", "name1", "name2", "name2", "name2", "name3" };
HashMap<String, Integer> countMap = new MultiString().countIntem(array);
System.out.println(countMap);
}
}
Gives you O(n) complexity.
using(var tw = new StreamWriter(path, File.Exists(path)))
{
tw.WriteLine(message);
}
From the documentation
class
typing.Union
Union type; Union[X, Y] means either X or Y.
Hence the proper way to represent more than one return data type is
from typing import Union
def foo(client_id: str) -> Union[list,bool]
But do note that typing is not enforced. Python continues to remain a dynamically-typed language. The annotation syntax has been developed to help during the development of the code prior to being released into production. As PEP 484 states, "no type checking happens at runtime."
>>> def foo(a:str) -> list:
... return("Works")
...
>>> foo(1)
'Works'
As you can see I am passing a int value and returning a str. However the __annotations__
will be set to the respective values.
>>> foo.__annotations__
{'return': <class 'list'>, 'a': <class 'str'>}
Please Go through PEP 483 for more about Type hints. Also see What are Type hints in Python 3.5?
Kindly note that this is available only for Python 3.5 and upwards. This is mentioned clearly in PEP 484.
As mentioned by Chris Fritz (Vue.js Core Team Emeriti) in VueCONF US 2019
if we had Kia enter
.native
and then the root element of the base input changed from an input to a label suddenly this component is broken and it's not obvious and in fact, you might not even catch it right away unless you have a really good test. Instead by avoiding the use of the.native
modifier which I currently consider an anti-pattern will be removed in Vue 3 you'll be able to explicitly define that the parent might care about which element listeners are added to...
$listeners
:So, if you are using Vue 2 a better option to resolve this issue would be to use a fully transparent wrapper logic. For this Vue provides a $listeners
property containing an object of listeners being used on the component. For example:
{
focus: function (event) { /* ... */ }
input: function (value) { /* ... */ },
}
and then we just need to add v-on="$listeners"
to the test
component like:
Test.vue (child component)
<template>
<div v-on="$listeners">
click here
</div>
</template>
Now the <test>
component is a fully transparent wrapper, meaning it can be used exactly like a normal <div>
element: all the listeners will work, without the .native
modifier.
Demo:
Vue.component('test', {_x000D_
template: `_x000D_
<div class="child" v-on="$listeners">_x000D_
Click here_x000D_
</div>`_x000D_
})_x000D_
_x000D_
new Vue({_x000D_
el: "#myApp",_x000D_
data: {},_x000D_
methods: {_x000D_
testFunction: function(event) {_x000D_
console.log('test clicked')_x000D_
}_x000D_
}_x000D_
})
_x000D_
div.child{border:5px dotted orange; padding:20px;}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js"></script>_x000D_
<div id="myApp">_x000D_
<test @click="testFunction"></test>_x000D_
</div>
_x000D_
$emit
method:We can also use $emit
method for this purpose, which helps us to listen to child components events in parent component. For this, we first need to emit a custom event from child component like:
Test.vue (child component)
<test @click="$emit('my-event')"></test>
Important: Always use kebab-case for event names. For more information and demo regading this point please check out this answer: VueJS passing computed value from component to parent.
Now, we just need to listen to this emitted custom event in parent component like:
App.vue
<test @my-event="testFunction"></test>
So, basically instead of v-on:click
or the shorthand @click
we will simply use v-on:my-event
or just @my-event
.
Demo:
Vue.component('test', {_x000D_
template: `_x000D_
<div class="child" @click="$emit('my-event')">_x000D_
Click here_x000D_
</div>`_x000D_
})_x000D_
_x000D_
new Vue({_x000D_
el: "#myApp",_x000D_
data: {},_x000D_
methods: {_x000D_
testFunction: function(event) {_x000D_
console.log('test clicked')_x000D_
}_x000D_
}_x000D_
})
_x000D_
div.child{border:5px dotted orange; padding:20px;}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js"></script>_x000D_
<div id="myApp">_x000D_
<test @my-event="testFunction"></test>_x000D_
</div>
_x000D_
v-bind="$attrs"
:Vue 3 is going to make our life much easier in many ways. One of the examples for it is that it will help us to create a simpler transparent wrapper with very less config by just using v-bind="$attrs"
. By using this on child components not only our listener will work directly from the parent but also any other attribute will also work just like it a normal <div>
only.
So, with respect to this question, we will not need to update anything in Vue 3 and your code will still work fine as <div>
is the root element here and it will automatically listen to all child events.
Demo #1:
const { createApp } = Vue;_x000D_
_x000D_
const Test = {_x000D_
template: `_x000D_
<div class="child">_x000D_
Click here_x000D_
</div>`_x000D_
};_x000D_
_x000D_
const App = {_x000D_
components: { Test },_x000D_
setup() {_x000D_
const testFunction = event => {_x000D_
console.log("test clicked");_x000D_
};_x000D_
return { testFunction };_x000D_
}_x000D_
};_x000D_
_x000D_
createApp(App).mount("#myApp");
_x000D_
div.child{border:5px dotted orange; padding:20px;}
_x000D_
<script src="//unpkg.com/vue@next"></script>_x000D_
<div id="myApp">_x000D_
<test v-on:click="testFunction"></test>_x000D_
</div>
_x000D_
But for complex components with nested elements where we need to apply attributes and events to main <input />
instead of the parent label we can simply use v-bind="$attrs"
Demo #2:
const { createApp } = Vue;_x000D_
_x000D_
const BaseInput = {_x000D_
props: ['label', 'value'],_x000D_
template: `_x000D_
<label>_x000D_
{{ label }}_x000D_
<input v-bind="$attrs">_x000D_
</label>`_x000D_
};_x000D_
_x000D_
const App = {_x000D_
components: { BaseInput },_x000D_
setup() {_x000D_
const search = event => {_x000D_
console.clear();_x000D_
console.log("Searching...", event.target.value);_x000D_
};_x000D_
return { search };_x000D_
}_x000D_
};_x000D_
_x000D_
createApp(App).mount("#myApp");
_x000D_
input{padding:8px;}
_x000D_
<script src="//unpkg.com/vue@next"></script>_x000D_
<div id="myApp">_x000D_
<base-input _x000D_
label="Search: "_x000D_
placeholder="Search"_x000D_
@keyup="search">_x000D_
</base-input><br/>_x000D_
</div>
_x000D_
as 'whoami' has been obsoleted, it's probably more forward compatible to use:
id -un