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What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
... the constructor, you will get an array of that length:
x = new Array(5);
alert(x.length); // 5
To illustrate the different ways to create an array:
var a = [], // these are the same
b = new Array(), // a and b are arrays with length 0
c = ['foo', 'bar'], // these...
Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?
...r, are purely symbols; they are not associated with any alphabet.
The ECMAScript standard, chapter 7.6 (which all the browsers except Internet Explorer are following), states that an identifier must start with one of the following.
a Unicode letter
$ or _
\ followed by a unicode escape sequence.
...
Implode an array with JavaScript?
...ters:
var bits = ['H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd'];
alert(bits.join()); // H,e,l,l,o, ,W,o,r,l,d
alert(bits.join('')); // Hello World
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...
What are deferred objects?
...r rejected.
Deferred In Action:
$.get("test.php").done(
function(){ alert("$.get succeeded"); }
);
$.get("test.php")
.done(function(){ alert("$.get succeeded"); })
.fail(function(){ alert("$.get failed!"); });
And it seems that the existing ajax() method callbacks can be chained rat...
Run a Java Application as a Service on Linux
...l on debian-based distros, like debian itself and ubuntu, you can add that script to /etc/init.d. Then you can invoke it like this: /etc/init.d/MyService start. And you can make it start automatically by running update-rc.d MyService defaults .
– Andre
Jan 26 '...
How to include external Python code to use in other files?
...dostuff)
if __name__ == "__main__":
dostuff()
And from the another script or the python console
import teststuff
exec(DOSTUFF_SOURCE)
dostuff()
And now dostuff should be in the local scope and dostuff() will return the console or scripts _name_ whereas executing test.dostuff() will retu...
How to send multiple data fields via Ajax? [closed]
...here: http://api.jquery.com/jQuery.ajax/
So if that doesn't work, I would alert those variables to make sure they have values.
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How to concatenate two strings to build a complete path
I am trying to write a bash script. In this script I want user to enter a path of a directory. Then I want to append some strings at the end of this string and build a path to some subdirectories.
For example assume user enters an string like this:
...
How to perform a mysqldump without a password prompt?
...er the password. You don't even need the -p or --password.
Very handy for scripting mysql & mysqldump commands.
The steps to achieve this can be found in this link.
Alternatively, you could use the following command:
mysqldump -u [user name] -p[password] [database name] > [dump file]
bu...
Why do we need to install gulp globally and locally?
...installed eslint, you can do:
npx eslint .
npm < 5.2
When used in a script field of your package.json, npm searches node_modules for the tool as well as globally installed modules, so the local install is sufficient.
So, if you are happy with (in your package.json):
"devDependencies": {
...