Newbe Dev Stack

Example 1: bootstrap Margin and padding Use the margin and padding spacing utilities to control how elements and components are spaced and sized. Bootstrap 4 includes a five-level scale for spacing utilities, based on a 1rem value default $spacer variable. Choose values for all viewports (e.g., .mr-3 for margin-right: 1rem), or pick responsive variants to target specific viewports (e.g., .mr-md-3 for margin-right: 1rem starting at the md breakpoint). Margin Y 0 Margin Y 1 Margin Y 2 Margin Y 3 Margin Y 4 Margin Y 5 Margin Y Auto Example 2: spacing bootstrap The classes are named using the format {property}{sides}-{size} for xs and {property}{sides}-{breakpoint}-{size} for sm, md, lg, and xl. Where property is one of: m - for classes that set margin p - for classes that set padding Where sides is one of: t - for classes that set margin-top or padding-top b - for classes that set margin-bottom or padding-bottom l - for classes that set margin-left or paddi...

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Answer : It looks like you edited this code snippet: if [ -d "$HOME/bin" ] ; then PATH="$HOME/bin:$PATH" fi which is included in ~/.profile by default. The answer which lead you to do so is confusing IMNSHO. I'd suggest that you change that code back to what it looked like before, and instead add a new line underneath it: if [ -d "$HOME/bin" ] ; then PATH="$HOME/bin:$PATH" fi PATH="$PATH:/usr/local/Android/android-studio/bin" Then, next time you log in, PATH ought to be altered, whether $HOME/bin exists or not.

Answer : for anyone interested, here is complete solution, based on Laila's approach. Warning! My solution is intended to work only with WooCommerce "manage stock" option disabled ! I am not working with exact amounts of items in stock. All code goes to functions.php , as usual. Back-end part Removing native stock status dropdown field. Adding CSS class to distinguish my new custom field. Dropdown has now new option "On Request". function add_custom_stock_type() { ?> <script type="text/javascript"> jQuery(function(){ jQuery('._stock_status_field').not('.custom-stock-status').remove(); }); </script> <?php woocommerce_wp_select( array( 'id' => '_stock_status', 'wrapper_class' => 'hide_if_variable custom-stock-status', 'label' => __( 'Stock status', 'woocommerce' ), 'options' => array( '...

Example 1: conda list environments conda info -- envs Example 2: how to see all the environments in Conda conda env list

Answer : I've solved my problem, it was caused by StackNavigator. To solve it , just add some extra options const HomeStack = StackNavigator( { Home: { screen: HomeScreen, }, Item: { screen: ItemScreen, navigationOptions: ({ navigation }) => ({ title: `${navigation.state.params.title}`, }), }, }, ** { headerMode: 'screen', cardStyle: { backgroundColor: '#FFFFFF' }, }, ** ); For React Navigation 5 and above <Stack.Navigator initialRouteName='dashboard' screenOptions={{ headerStyle: { elevation: 0 }, cardStyle: { backgroundColor: '#fff' } }} > <Stack.Screen name="Home" component={HomeStack} /> </Stack.Navigator> For React Navigation 4 and earlier const HomeStack = StackNavigator( { Home: { screen: HomeScreen, }, }, { headerMode: 'screen', cardStyle: { backgroundColor: '#fff...

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Example 1: price range slider bootstrap 4 < input type = " range " name = " range " step = " 50000 " min = " 100000 " max = " 1000000 " value = " " onchange = " rangePrimary.value=value " > < input type = " text " id = " rangePrimary " /> Example 2: bootstrap range slider < label for = " customRange3 " class = " form-label " > Example range </ label > < input type = " range " class = " form-range " min = " 0 " max = " 5 " step = " 0.5 " id = " customRange3 " >

Answer : You're doing it right. The bound parameters are the one declared in a "prepared statement" using ?. Then they are bound using execute() with their value as a parameter to be bound to the statement. The protection comes from using bound parameters, not from using prepared statement Means it is not enough just to use prepare() but keep all variables in the query like this: $sql = $db->prepare("SELECT * FROM employees WHERE name ='$name'"); $sql->execute(); $rows = $sql->fetchAll(); Someone who said that meant "although technically you are using a prepared statement, you aren't binding variables to it". So it makes the query vulnerable all the same. To be protected, you have to substitute all variables in the query with placeholders, and then bind them: $sql = $db->prepare("SELECT * FROM employees WHERE name = ?"); $sql->bindParam(1, $name); $sql->execute(); $rows = $sql->fetchAll();...

Answer : I think via inclusion/exclusion the probability that at least one of the six values never appears after n rolls of the die would be: p ( n ) = ( 6 1 ) ( 5 6 ) n − ( 6 2 ) ( 4 6 ) n + ( 6 3 ) ( 3 6 ) n − ( 6 4 ) ( 2 6 ) n + ( 6 5 ) ( 1 6 ) n p(n) = {6 \choose 1}({5 \over 6})^n - {6 \choose 2}({4 \over 6})^n + {6 \choose 3}({3 \over 6})^n - {6 \choose 4}({2 \over 6})^n + {6 \choose 5}({1 \over 6})^n p ( n ) = ( 1 6 ​ ) ( 6 5 ​ ) n − ( 2 6 ​ ) ( 6 4 ​ ) n + ( 3 6 ​ ) ( 6 3 ​ ) n − ( 4 6 ​ ) ( 6 2 ​ ) n + ( 5 6 ​ ) ( 6 1 ​ ) n To understand, first just consider the probability of a 1 never showing up: ( 5 6 ) n ({5 \over 6})^n ( 6 5 ​ ) n Easy enough. Now what are the chances of either a 1 never showing up OR a 2 never showing up. To first order it's just twice the above, but by simply doubling the above, you've double-counted the events where neither a 1 nor a 2 show up, so you have to subtract that off to correct the double counting: 2 ( 5 6 ) n − ( 4 6 ) ...

Example: java == vs equals In general both equals ( ) and == operator in Java are used to compare objects to check equality but here are some of the differences between the two : 1 ) . equals ( ) and == is that one is a method and other is operator . 2 ) We can use == operator for reference comparison ( address comparison ) and . equals ( ) method for content comparison . - > == checks if both objects point to the same memory location - > . equals ( ) evaluates to the comparison of values in the objects . 3 ) If a class does not override the equals method , then by default it uses equals ( Object o ) method of the closest parent class that has overridden this method . // Java program to understand // the concept of == operator public class Test { public static void main ( String [ ] args ) { String s1 = new String ( "HELLO" ) ; String s2 = new String ( "HELLO...

Example: resize image asset flutter Image.asset( 'assets/images/file-name.jpg', height: 100, width: 100, )

Example: android studio please provide the path to the android sdk After the installation, immediately close Android Studio,then start it as administrator. A message might popup asking for the sdk manager location. Ignore it (Close the popup). Go to Tools > SDK Manager and click on the edit button on the right of Android SDK Location. Then click Next, next and you're good to go. Android Studio will let you install the sdk manager.

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Answer : This is NOT possible The Simulator does not run ARM code, ONLY x86 code. Unless you have the raw source code from Apple, you won't see the App Store on the Simulator. The app you write you will be able to test in the Simulator by running it directly from Xcode even if you don't have a developer account. To test your app on an actual device, you will need to be apart of the Apple Developer program. No, according to Apple here: Note: You cannot install apps from the App Store in simulation environments. You can install other builds but not Appstore build. From Xcode 8.2 ,drag and drop the build to simulator for the installation. https://stackoverflow.com/a/41671233/1522584

directive When applied to an element in a template, makes that element a link that initiates navigation to a route. Navigation opens one or more routed components in one or more <router-outlet> locations on the page. See more... Exported from RouterModule Selectors :not(a) :not( area) [ routerLink] Properties Property Description @ Input() queryParams ?: Params | null Passed to Router#createUrlTree as part of the UrlCreationOptions . See also: UrlCreationOptions#queryParams Router#createUrlTree @ Input() fragment ?: string Passed to Router#createUrlTree as part of the UrlCreationOptions . See also: UrlCreationOptions#fragment Router#createUrlTree @ Input() queryParamsHandling ?: QueryParamsHandling | null Passed to Router#createUrlTree as part of the UrlCreationOptions . See also: UrlCreationOptions#queryParamsHandling Router#createUrlTree @ Input() preserveFragment : boolean Passed to Router#create...

Answer : Just sync your project with gradles. File --> Sync Project with Gradle Files Build -> Clean Project Build -> Rebuild Project File -> Sync project with gradle files . If not worked then try File -> Invalidate Caches / Restart . It's work for me !!!

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Example: bootstrap 4 button with icon <!-- Add icon library --> < link rel = " stylesheet " href = " https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css " > < button class = " btn " > < i class = " fa fa-home " > </ i > </ button >

Example 1: javascript change image src //change image src document . getElementById ( 'myImageID' ) . src = "images/my_other_image.png" ; Example 2: set img src using javascript document . getElementById ( "imageid" ) . src = "../template/save.png" ; Example 3: javascript set image src // Pure JavaScript to Create img tag and add attributes manually , var image = document . createElement ( "img" ) ; var imageParent = document . getElementById ( "body" ) ; image . id = "id" ; image . className = "class" ; image . src = searchPic . src ; // image.src = "IMAGE URL/PATH" imageParent . appendChild ( image ) ; // Set src in pic1 document [ "#pic1" ] . src = searchPic . src ; // or with getElementById document . getElementById ( "pic1" ) . src = searchPic . src ; // jQuery to archive this, $ ( "#pic1" ) . attr ( "src"...

Example 1: create react component class class MyComponent extends React.Component{ constructor(props){ super(props); }; render(){ return( < div > < h1 > My First React Component! </ h1 > </ div > ); } }; Example 2: props in react app /* PASSING THE PROPS to the 'Greeting' component */ const expression = 'Happy'; < Greeting statement = ' Hello ' expression = {expression}/ > // statement and expression are the props (ie. arguments) we are passing to Greeting component /* USING THE PROPS in the child component */ class Greeting extends Component { render() { return < h1 > {this.props.statement} I am feeling {this.props.expression} today! </ h1 > ; } } -------------------------------------------- function Welcome(props) { return < h1 > Hello, {props.name} </ h1 > ; } const element =...

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Answer : I just needed to spend more time staring at the documentation. This command: \x on will do exactly what I wanted. Here is some sample output: select * from dda where u_id=24 and dda_is_deleted='f'; -[ RECORD 1 ]------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- dda_id | 1121 u_id | 24 ab_id | 10304 dda_type | CHECKING dda_status | PENDING_VERIFICATION dda_is_deleted | f dda_verify_op_id | 44938 version | 2 created | 2012-03-06 21:37:50.585845 modified | 2012-03-06 21:37:50.593425 c_id | dda_nickname | dda_account_name | cu_id | 1 abd_id | (New) Expanded Auto Mode: \x auto New for Postgresql 9.2; PSQL automatically fits records to the width of the scr...

Answer : For Python >= 2.7, cmapy packages this functionality in a convenient way. Install it with: Python 2.7: pip install cmapy Python 3.x: pip3 install cmapy Or, for Anaconda (from conda-forge): conda install -c conda-forge cmapy And use it like this: import cv2 import matplotlib.pyplot as plt import cmapy # Read image. img = cv2.imread('imgs/woman.png') # Colorize. img_colorized = cv2.applyColorMap(img, cmapy.cmap('viridis')) # Display plt.imshow(img_colorized) plt.show() Different colormaps give something like this: See all the available colormaps in action here. Disclaimer: I wrote cmapy (because I needed this functionality for another project), and internally, it does pretty much the same as the other answers. In recent versions of OpenCV (starting with 3.3), there's an overload of applyColorMap , which allows you to provide a custom colormap (either 1 or 3 channel). I've modified verified.human's code to sim...

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