scarecrow1123

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

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def make_complete_graph(num_nodes):
  """takes number of nodes and returns a dict that represents 
  a complete graph(no self loops) with num_nodes"""
  return {x: set([(lambda y: y)(y) for y in xrange(num_nodes) if y!= x]) for x in xrange(num_nodes)}
  #remove the y!=x condition for self loops

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def count_set_bits(i):
  return bin(i).count('1')

def sort_set_bits(lst):
  """sorts a list based on the number of set bits in each digit"""
  return sorted(lst, key=count_set_bits)

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"""takes a list x and returns a list with odd integers or elements with even index"""
[i for idx,i in enumerate(x) if (type(i) is int) and (i%2 !=0 or idx%2==0)]

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"""finds the shortest path that an ant could take to reach a point from another
	 constraint: the ant can move only to the right or up at any point
"""

grid_order = 4
grid = {}
index = {}
rev_index = {}
adj_list = {}

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# tmux.conf - almost everything noted from the book "tmux Productive Mouse-Free Development" by "Brian P. Hogan"
# change default prefix to C-a and unbind C-b
set -g prefix C-a
unbind-key C-b

# to enable other programs to detect C-a(by double pressing)
bind-key C-a send-prefix

# '|' for vertical split and '-' for horizontal split
bind | split-window -h

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set expandtab
set shiftwidth=2
set softtabstop=2
set autoindent
syntax enable

set number 	"show line numbers
set cursorline 	"highlight current line
filetype indent on

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Test mbostock's awesome bl.ocks.org

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Classes

Reduce accessbility

Somehow the author keeps on reiterating this point the reason for which essentially boils down as below

• The client need not know the internal implementation/representation of the class/object
• If exposed, it would become cumbersome in the event of changing the implementation/representation of the class, which may cause several breakages in client code. On the other hand if the field was exposed through getter methods, the change in the implementation would have gone unnoticed by the client.
• Allow public access, if neccessary only in case of static final and primitive fields.(even in this case, when the field or object itself is passed from one thread to another, one needs to exercise caution - why?)
• But a final array field may not become immutable after all. In that case make it private and expose an unmodifiable public list field. Or make it private and provide a getter method which returns a copy of the array.

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tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name: