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valueOf() vs. toString() in Javascript
In Javascript every object has a valueOf() and toString() method. I would have thought that the toString() method got invoked whenever a string conversion is called for, but apparently it is trumped by valueOf().
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Database development mistakes made by application developers [closed]
...using it anyway.
More here:
How important are constraints like NOT NULL and FOREIGN KEY if I’ll always control my database input with php?
Are foreign keys really necessary in a database design?
Are foreign keys really necessary in a database design?
3. Using natural rather than surrogate (te...
AngularJS best practices for module declaration?
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'Best' way to declare a module
As angular is on the global scope itself and modules are saved to its variable you can access modules via angular.module('mymod'):
// one file
// NOTE: the immediately invoked function expression
// is used to exemplify different files and is not required
(functio...
How to declare a variable in MySQL?
... refer to a variable that has not been
initialized, it has a value of NULL and a type of string.
SELECT @var_any_var_name
You can initialize a variable using SET or SELECT statement:
SET @start = 1, @finish = 10;
or
SELECT @start := 1, @finish := 10;
SELECT * FROM places WHERE place BET...
What are the differences between Perl, Python, AWK and sed? [closed]
just want to know what are the main differences among them? and the power of each language (where it's better to use it).
5...
How to identify server IP address in PHP
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Like this for the server ip:
$_SERVER['SERVER_ADDR'];
and this for the port
$_SERVER['SERVER_PORT'];
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Detect encoding and make everything UTF-8
I'm reading out lots of texts from various RSS feeds and inserting them into my database.
24 Answers
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Gulps gulp.watch not triggered for new or deleted files?
...w. It did not when the question was asked.
The rest of my answer still stands: gulp-watch is usually a better solution because it lets you perform specific actions only on the files that have been modified, while gulp.watch only lets you run complete tasks. For a project of a reasonable size, thi...
Getting random numbers in Java [duplicate]
I would like to get a random value between 1 to 50 in Java.
2 Answers
2
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How to decide when to use Node.js?
...out how good Node.js is. Considering how much I love working with jQuery and JavaScript in general, I can't help but wonder how to decide when to use Node.js. The web application I have in mind is something like Bitly - takes some content, archives it.
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