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Example: cm to inch 1 cm = 0.3937 inch

Answer : Add a new pandas.Series using pandas.DataFrame.append(). If you wish to specify the name (AKA the "index") of the new row, use: df.append(pandas.Series(name='NameOfNewRow')) If you don't wish to name the new row, use: df.append(pandas.Series(), ignore_index=True) where df is your pandas.DataFrame. You can add it by appending a Series to the dataframe as follows. I am assuming by blank you mean you want to add a row containing only "Nan". You can first create a Series object with Nan. Make sure you specify the columns while defining 'Series' object in the -Index parameter. The you can append it to the DF. Hope it helps! from numpy import nan as Nan import pandas as pd >>> df1 = pd.DataFrame({'A': ['A0', 'A1', 'A2', 'A3'], ... 'B': ['B0', 'B1', 'B2', 'B3'], ... 'C': ['C0', 'C...

Answer : MSCK REPAIR TABLE can be a costly operation, because it needs to scan the table's sub-tree in the file system (the S3 bucket). Multiple levels of partitioning can make it more costly, as it needs to traverse additional sub-directories. Assuming all potential combinations of partition values occur in the data set, this can turn into a combinatorial explosion. If you are adding new partitions to an existing table, then you may find that it's more efficient to run ALTER TABLE ADD PARTITION commands for the individual new partitions. This avoids the need to scan the table's entire sub-tree in the file system. It is less convenient than simply running MSCK REPAIR TABLE , but sometimes the optimization is worth it. A viable strategy is often to use MSCK REPAIR TABLE for an initial import, and then use ALTER TABLE ADD PARTITION for ongoing maintenance as new data gets added into the table. If it's really not feasible to use ALTER TABLE ADD PARTITION t...

Example: javascript declare array var array = [ ]

Example: brew aws cli v2 brew install awscli

Answer : You should use a file called bs-config.js (instead of a bs-config.json one) since lite-server tries to load a module using the require function. The configuration should be a valid Node module: module.exports = { "port": 8123, "server": { "baseDir": "./src" } }; See this line in the source code: https://github.com/johnpapa/lite-server/blob/master/lib/lite-server.js#L20. This file by default is loaded from the user's project folder. Edit After digging a bit more, the first part of my answer relies on the code from github but not the one actually installed using npm install (version 1.3.4) There are two options in this case: port baseDir Using this command will fix your problem: $ lite-server --baseDir ./src --port 3333 Hope it helps you, Thierry The answer from Thierry Templier is not quite correct (anymore), you can use either the bs-config.json or bs-config.js configuration to adjust your browse...

Example 1: error: ‘sleep’ was not declared in this scope Solution : # include <unistd.h> Include unistd . h header file will solve the error . Explanation : "sleep" function in c ++ context , include in header file "unistd.h" . otherwise we can see compilation error like below . prashad@ubuntu : ~ / test$ g ++ open_videofile . cpp `pkg - config -- cflags -- libs opencv` - g open_videofile . cpp : In function ‘ int main ( int , char * * ) ’ : open_videofile . cpp : 34 : 2 : error : ‘sleep’ was not declared in this scope sleep ( 5 ) ; ^ ~ ~ ~ ~ Example 2: sleep not declared in this scope c++ " 's' should be in the form of uppercase in Sleep"

Example 1: window.onload window.onload = function() { // Some code }; Example 2: javascript document load window.addEventListener("load", function(event) { console.log("Tutte le risorse hanno terminato il caricamento!"); }); Example 3: document.addEventListener("load", function () { window.addEventListener('load', (event) => { console.log('page is fully loaded'); }); window.onload = (event) => { console.log('page is fully loaded'); }; Example 4: js document onload //use window.onload=()=>{}; Example 5: window onload function load(argument) { // body... } window.onload = load;

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Example: spiral order matrix traversal in C++ vector < int > Solution :: spiralOrder ( const vector < vector < int > > & A ) { int row_start = 0 , row_end = A . size ( ) - 1 , col_start = 0 , col_end = A [ 0 ] . size ( ) - 1 ; vector < int > v ; while ( row_start <= row_end && col_start <= col_end ) { //for row_start for (int col = col_start; col<=col_end; col++) { v.push_back(A[row_start][col]); } row_start++; //for col_end for (int row = row_start; row<= row_end; row++) { v.push_back(A[row][col_end]); } col_end--; //for row_end for (int col = col_end; col>=col_start; col--) { v.push_back(A[row_end][col]); } row_end--; //for col_start for (int row = row_end; row>=row_start; row--) { v.push_back(A[row][col_start]); } ...

Example 1: error: dereferencing pointer to incomplete type The “dereferencing pointer to incomplete type” error commonly occurs in C when one tries to dereference a type ( usually a struct ) that is : not declared at all . declared , but not defined . Example 2: dereferencing pointer to incomplete type ‘struct dirent dereferencing pointer to incomplete type ‘ struct dirent

Answer : The answer is : 1. add a div around the canvas for example : <div class="wrapper"> <canvas width="600" height="250"></canvas> </div> 2. add height to the div class in the css .wrapper { height: 500px !important; } (adjust height as you wish the responsive rendering) Bootstrap has an example page, which has a chart (using chartjs) that is responsive. So, I would point to that URL, which can be downloaded and we have a responsive chart. Dasbhoard Example showing Reponsive Chart I know this is an old post, but recently came across it. Please check https://www.chartjs.org/docs/latest/general/responsive.html#important-note It basically says that, Detecting when the canvas size changes can not be done directly from the canvas element. Chart.js uses its parent container to update the canvas render and display sizes. However, this method requires the container to be relatively positioned and dedicated ...

Example 1: bootstrap 4 cdn < link rel = "stylesheet" href = "https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" > Example 2: bootstrap 4 cdn < ! - - Boostrap 4 CSS - -> < link rel = "stylesheet" href = "https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity = "sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin = "anonymous" > < script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity = "sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin = "anonymous" > < / script > < ! - - Boostrap JS - -> < script src = "https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity = "sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin = "ano...

Example 1: javascript onclick event listener document . getElementById ( "myBtn" ) . addEventListener ( "click" , function ( ) { alert ( "Hello World!" ) ; } ) ; Example 2: javascript click event // EXAMPLE: document . querySelector ( ` . check` ) . addEventListener ( `click` , function ( ) { console . log ( document . querySelector ( ` . guess` ) . value ; } ) ; // SYNTAX: // <element-select>.addEventListener(`click`, // function () { // <what-you-want-to-execute-when-clicking-on-element> // } // ); Example 3: javascript button < button onclick = "Function()" > Text < / button > Example 4: javascript click event < button onclick = "myFunction()" > Click me < / button > < p id = "demo" > < / p > < script > function myFunction ( ) { document . getElementById ( "demo" ) . innerHTML = "Hello Wo...

Answer : https://angular.io/docs/ts/latest/guide/router.html Add the base element just after the <head> tag. If the app folder is the application root, as it is for our application, set the href value exactly as shown here. The <base href="/"> tells the Angular router what is the static part of the URL. The router then only modifies the remaining part of the URL. <head> <base href="/"> ... </head> Alternatively add >= Angular2 RC.6 import {APP_BASE_HREF} from '@angular/common'; @NgModule({ declarations: [AppComponent], imports: [routing /* or RouterModule */], providers: [{provide: APP_BASE_HREF, useValue : '/' }] ]); in your bootstrap. In older versions the imports had to be like < Angular2 RC.6 import {APP_BASE_HREF} from '@angular/common'; bootstrap(AppComponent, [ ROUTER_PROVIDERS, {provide: APP_BASE_HREF, useValue : '/' }); ]); < RC.0 ...

Answer : From the Google design specifications: Each snackbar may contain a single action, neither of which may be “Dismiss” or “Cancel.” For multiple actions, use a dialog. As @Elias N answer's each Snackbar may contain a single action. If you want to set more then action in Snackbar then you need to create your own layout. Please try this i hope this will help you. Create one xml file my_snackbar.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="50dp" android:background="#000000"> <TextView android:layout_width="0dp" android:layout_height="50dp" android:layout_weight=".7" android:gravity="center_ver...

Example 1: string contains specific word in java str_Sample . contains ( "Example" ) ) ; Example 2: check if a string contains a character java string . indexOf ( 'a' ) Example 3: string contains specific word in java public boolean String . contains ( CharSequence s ) ; Example 4: string check if substring exists java String str1 = "Java" ; String str2 = "va" ; if ( str1 . contains ( str2 ) ) { // str1.contains(str2) will be true here. System . out . println ( "I am true" ) ; }