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How to save an HTML5 Canvas as an image on a server?
...
<canvas id="myCanvas" width="578" height="200"></canvas>
<script>
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
// begin custom shape
context.beginPath();
context.moveTo(170, 80);
context.bezierCurveTo(130, 100, 130, 150, 23...
How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...p is not an AppBundler application, instead its main executable is a shell script that calls a number of other shell scripts and reads various configuration files. It defaults to picking the newest JDK from /Library/Java as long as that is 7u10 or later, or uses Java 6 if your Java 7 installation i...
Add a prefix to all Flask routes
...way mount to sub path in uwsgi uwsgi -s /tmp/yourapplication.sock --manage-script-name --mount /yourapplication=myapp:app . detail refer to (uwsgi document)[flask.pocoo.org/docs/1.0/deploying/uwsgi/]
– todaynowork
Jun 12 '19 at 6:06
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Commenting in a Bash script inside a multiline command
How can I comment on each line of the following lines from a script?
7 Answers
7
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JavaScript get clipboard data on paste event (Cross browser)
...clipboardData.getData('Text');
// Do whatever with pasteddata
alert(pastedData);
}
document.getElementById('editableDiv').addEventListener('paste', handlePaste);
JSFiddle: https://jsfiddle.net/swL8ftLs/12/
Note that this solution uses the parameter 'Text' for the getData function, whi...
How do I clear only a few specific objects from the workspace?
...n can be used to remove all the variables apart from "data". Here is the script:
0->data
1->data_1
2->data_2
3->data_3
#check variables in workspace
ls()
rm(list=setdiff(ls(), "data"))
#check remaining variables in workspace after deletion
ls()
#note: if you just use rm(list) then R ...
What are the special dollar sign shell variables?
...f the most recent background command.
$0 is the name of the shell or shell script.
Most of the above can be found under Special Parameters in the Bash Reference Manual. There are all the environment variables set by the shell.
For a comprehensive index, please see the Reference Manual Variable In...
How to enter a multi-line command
...l also work in some contexts:
1,
2
Keep in mind, though, similar to JavaScript's Automatic Semicolon Insertion, there are some things that are similarly broken because the line break occurs at a point where it is preceded by a valid statement:
return
5
will not work.
Finally, strings (in al...
How to run a python script from IDLE interactive shell?
How do I run a python script from within the IDLE interactive shell?
15 Answers
15
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How to make a JSONP request from Javascript without JQuery?
Can I make a cross-domain JSONP request in JavaScript without using jQuery or other external library? I would like to use JavaScript itself and then parse the data and make it an object so I could use it. Do I have to use an external library? If not, how can I do it?
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