delwar2016

1. For creating new branch

git checkout -b [new-branch-name]

Example: we want to create new branch named: new-branch-1

git checkout -b new-branch-1

2. For swicthing existing branch

delwar2016

Suppose we have the following document in users_exams collection:

{
"answers" : [ 
        {
            "auto_score" : 0,
            "question_id" : "579733a97e6b58a0616b2c55",
            "user_answers" : "na",
            "isCorrect" : false,

delwar2016

server ip: server-ip password: password user: root

using SSh command: -> ssh root@server-ip then it will asked for password like bellow root@server-ip's password: write password and press enter

delwar2016

How to install mobx in create-react-app

1) Run create-react-app.

2) Run npm run eject. 

3) Run npm install --saveDev babel-plugin-transform-decorators-legacy.

4) Open package.json, find the "babel" section (line 78 for me), and add 4 lines so it looks like this:

delwar2016

Let’s create a new virtual envirnoment, named myenv, using pyvenv:
pyvenv myenv3

source myenv3/bin/activate

and you can start Python 3 by just typing:
$ python

Note that as you are inside the virtual environment, you don’t need to use the command python3 to open Python 3.

delwar2016

Link:
https://www.microsoft.com/net/core#macos

delwar2016

# To Show installed versions 
nvm ls

# Set 6.1.0 (or another version) as default
nvm alias default 6.1.0

delwar2016

array[start:end:step] # start through not past end, by step

start: the beginning index of the slice, it will include the element at this index unless it is the same as end, defaults to 0, i.e. the first index. 
If it's negative, it means to start n items from the end.

end: the ending index of the slice, it does not include the element at this index, 
defaults to length of the sequence being sliced, that is, up to and including the end.

step: the amount by which the index increases, defaults to 1. If it's negative, you're slicing over the iterable in reverse.

delwar2016

import numpy as np

# Manual construction of arrays

# one dimension array
a = np.array([0,1,2,3])
print(a)

print ('dimension', a.ndim)

delwar2016

Suppose we have following situation
$('#dom1').remove();
$('#dom2').remove();
$('#dom3').remove();
$('#dom4').remove();

So, we can write unit test as follows:

this.removeStub = sinon.stub($.fn, 'remove');
it('Should remove dom', function(){