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How do I create a SQL table under a different schema?
...nks. Hadn't done this for a while and was on the verge of writing a create script!
– Karl Gjertsen
Sep 22 '16 at 10:38
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How can I recall the argument of the previous bash command?
...ment from previous command
!^ - first argument (after the program/built-in/script) from previous command
!! - previous command (often pronounced "bang bang")
!n - command number n from history
!pattern - most recent command matching pattern
!!:s/find/replace - last command, substitute find with repl...
SQLite: How do I save the result of a query as a CSV file?
...e sqlite command line, which isn't ideal if you'd like to build a reusable script. Python makes it easy to build a script that can be executed programatically.
import pandas as pd
import sqlite3
conn = sqlite3.connect('your_cool_database.sqlite')
df = pd.read_sql('SELECT * from orders', conn)
df....
Bootstrap select dropdown list placeholder
...splay: none;}
select option{color: #555;} // bootstrap default color
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select class="form-control placeholder">
<option value="">Your Placeholder Text</option>
<option ...
How to use Servlets and Ajax?
...
Indeed, the keyword is "ajax": Asynchronous JavaScript and XML. However, last years it's more than often Asynchronous JavaScript and JSON. Basically, you let JS execute an asynchronous HTTP request and update the HTML DOM tree based on the response data.
Since it's pretty...
Autoincrement VersionCode with gradle extra properties
... This one is running with Gradle 4.4 and Android Studio 3.1.1.
What this script does:
Creates a version.properties file if none exists (up vote Paul Cantrell's answer below, which is where I got the idea from if you like this answer)
For each build, debug release or any time you press the run bu...
Get the value of checked checkbox?
...Query:
var checkedValue = $('.messageCheckbox:checked').val();
Pure javascript without jQuery:
var checkedValue = null;
var inputElements = document.getElementsByClassName('messageCheckbox');
for(var i=0; inputElements[i]; ++i){
if(inputElements[i].checked){
checkedValue = inpu...
How can I programmatically create a new cron job?
...ays worked well for me.
You should consider a slightly more sophisticated script that can do three things.
Append a crontab line; assuring that it didn't exist. Adding when it already exists is bad.
Remove the crontab line. Perhaps only warning if it didn't exist.
A combination of the above two...
How to send a PUT/DELETE request in jQuery?
...
You could use the ajax method:
$.ajax({
url: '/script.cgi',
type: 'DELETE',
success: function(result) {
// Do something with the result
}
});
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How to stop event bubbling on checkbox click
...adding: 2em;
font-size: 1.2em
}
.hidden {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="header"><input type="checkbox" />Checkbox won't bubble the event, but this text will.</div>
<di...