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Shasak Raina Kasahs

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  • O4S
  • Gurugram, India
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@Kasahs
Kasahs / syncec2
Last active August 29, 2015 14:06
automatically rsync local files with EC2 when local directory content changes, using inotifywait
#!/bin/sh
LOCAL="/path/to/local/dir"
while true
do
inotifywait -r $LOCAL
rsync -avL --progress --exclude-from rsync_exclude.list -e "ssh -i /path/to/id_rsa" /path/to/local/dir username@host:~/
done
@Kasahs
Kasahs / remove_el.js
Last active January 28, 2016 08:40
remove node from DOM by calling element.remove()
Element.prototype.remove = function() {
this.parentElement.removeChild(this);
};
NodeList.prototype.remove = HTMLCollection.prototype.remove = function() {
for (var i = 0, len = this.length; i < len; i++) {
@Kasahs
Kasahs / visibility_toggle.js
Last active August 29, 2015 14:08
Toggle visibility of an element. Chainable.
Element.prototype.toggleVisibility = function () {
this.style.visibility = (this.style.visibility == '' || this.style.visibility == 'visible') ? 'hidden' : 'visible';
return this;
}
@Kasahs
Kasahs / disk-related.sh
Last active October 22, 2018 13:05
List of usefull linux commands
@Kasahs
Kasahs / lnr_substring.py
Last active August 29, 2015 14:11
longest substring with non repeating chars
def lnrss(s):
"""
Returns the length of longest substring of input string with no repeated letter.
Assumes input string to be in lower case and ignores any other characters.
"""
l = 0
for i in range(len(s)):
for j in range(len(s) - i):
ss = s[j:j+i+1]
if (not has_rep(ss)) and len(ss)>=l:
@Kasahs
Kasahs / selenium_phantom.py
Created July 2, 2015 06:26
Use selenium with phantomjs (with custom capabilities) for screen scraping
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from bs4 import BeautifulSoup
# edit desired capabilities
dcap = dict(DesiredCapabilities.PHANTOMJS)
dcap["phantomjs.page.settings.userAgent"] = (
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/53 "
"(KHTML, like Gecko) Chrome/15.0.87"
)
@Kasahs
Kasahs / union.js
Last active August 29, 2015 14:24
Efficient pure Javascript array union
var array1 = [1,2,3,4,5];
var array2 = [1,2,3,4,5,6,7,8,9,10];
var union = [];
set = {};
for(var j = 0; j < array1.length; j++){
set[array1[j]] = true;
}
for(var k = 0; k < array2.length; k++){
set[array2[k]] = true;
}
@Kasahs
Kasahs / gitauthorstat.sh
Last active September 8, 2015 13:14
script to check author loc in git
git log --author="_author_name_" --pretty=tformat: --numstat \
| awk '{ add += $1; subs += $2; loc += $1 - $2 } END { printf "added lines: %s removed lines: %s total lines: %s\n", add, subs, loc }' -
@Kasahs
Kasahs / findUrlsAndPlaceAnchorTags.js
Created September 9, 2015 11:24
function findUrlsAndPlaceAnchorTags(str) {
var urlRegex = /((http|https|ftp|ftps)\:\/\/)([a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?)/g;
return str.replace(urlRegex, function(match, p1, p2, p3){
return "<a href='"+ match +"'>" + p3 + "</a>";
});
}
@Kasahs
Kasahs / jsApplyExample.js
Created September 9, 2015 15:54
function foo(){
var callback = arguments[0] || function(){return "do nothing"};
var options = arguments[1] || {};
return [callback(), options.a || "no A", options.b || "no B", this];
}
// try these out to understand how to use apply and what it means to write functions which might be called in this way
foo(null, {a:1, b:2});
foo.apply("apples", [function(){return "do something"}, {a:1, b:2}]);