Tutorial by Examples: s

If you are unsure which rules to list in your .gitattributes file, or you just want to add generally accepted attributes to your project, you can shoose or generate a .gitattributes file at: https://gitattributes.io/ https://github.com/alexkaratarakis/gitattributes
PGSQL> SELECT COALESCE(NULL, NULL, 'HELLO WORLD'); coalesce -------- 'HELLO WORLD'
PGSQL> SELECT COALESCE(NULL, NULL, 'first non null', null, null, 'second non null'); coalesce -------- 'first non null'
PGSQL> SELECT COALESCE(NULL, NULL, NULL); coalesce --------
<Image style={[this.props.imageStyle]} source={this.props.imagePath ? this.props.imagePath : require('../theme/images/resource.png')} /> If the path is available in imagePath then it will be assigned to source else the default image path will be assigned.
let imagePath = require("../../assets/list.png"); <Image style={{height: 50, width: 50}} source={imagePath} /> From external resource: <Image style={{height: 50, width: 50}} source={{uri: userData.image}} />
Installation pip install Flask-SQLAlchemy Simple Model class User(db.Model): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(80)) email = db.Column(db.String(120), unique=True) The code example above shows a simple Flask-SQLAlchemy model, we can add an ...
This following example is created by user Michael Dillon from this answer. Consider the following script: @set @junk=1 /* @echo off cscript //nologo //E:jscript %0 %* goto :eof */ //JScript aka Javascript here This script snippet does: Execute the cscript command which calls itsel...
As mentioned here, the old-school method to run another script is by using temporary files. Simple echo it into a file and then run it(and remove it optionally). Here's the basic concept: @echo off echo //A JS Comment > TempJS.js echo //Add your code>>TempJS.js cscript //nologo //e...
from flask_wtf import FlaskForm from wtforms import StringField, IntegerField from wtforms.validators import DataRequired class MyForm(FlaskForm): name = StringField('name', validators=[DataRequired()]) age = InterField('age', validators=[DataRequired()]) To render the template you...
You can save a canvas to an image file by using the method canvas.toDataURL(), that returns the data URI for the canvas' image data. The method can take two optional parameters canvas.toDataURL(type, encoderOptions): type is the image format (if omitted the default is image/png); encoderOptions is ...
Detailed instructions on getting prism set up or installed.
My laptop is having Windows 10. Here i am giving steps that you can follow to test and learn Ansible. SOME THEORY For Ansible you need a Control Machine and a host(or hosts) to run the Playbook. Control Machine should be Linux based or MacOS(windows not allowed) and need Python (2.6 or higher v...
ChromeDriverManager.getInstance().setup(); FirefoxDriverManager.getInstance().setup(); OperaDriverManager.getInstance().setup(); PhantomJsDriverManager.getInstance().setup(); EdgeDriverManager.getInstance().setup(); InternetExplorerDriverManager.getInstance().setup();
It is a powerful and mostly used keyword in Ansible to run Playbook using Ad-Hoc commands Example: ansible-playbook demo.yml Further Reading on ansible-plabook
The easy way This won't work if there are merge commits in your selection The advanced way Start the rebase dialog:
Detailed instructions on getting freemarker set up or installed.
All of the other buttons you can create, are buttons that link to a GitHub repository and prompts the user to complete a certain action. These buttons can do actions such as: Watch a repository Star a repository Fork a repository Download a repository List an Issue with a repository Here's...
The window resize events can fire in response to the movement of the user's input device. When you resize a canvas it is automatically cleared and you are forced to re-render the content. For animations you do this every frame via the main loop function called by requestAnimationFrame which does its...
Detailed instructions on getting join set up or installed.

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