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How can I change an element's class with JavaScript?
...
You can use node.className like so:
document.getElementById('foo').className = 'bar';
This should work in IE5.5 and up according to PPK.
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How to override Backbone.sync?
...ction (method, model, options) {
options.data = _.pick(this.attributes, 'foo', 'bar', 'baz');
return Backbone.sync.call(this, method, model, options);
}
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Does it make sense to do “try-finally” without “catch”?
...made.
This is also often used to prevent too much nesting:
try
{
if (foo) return false;
//bla ...
return true;
}
finally
{
//clean up
}
Especially when there are many points at which the method returns, this improves readability as anyone can see the clean up code is called in ev...
How do you unit test private methods?
...sor should be created
=> You will end up with a new class with the name foo_accessor.
This class will be dynamically generated during compilation and privides all members public available.
However, the mechanism is sometimes a bit intractable when it comes to changes of the interface of the ori...
Bash if statement with multiple conditions throws an error
...t pubs.opengroup.org/onlinepubs/9699919799/utilities/test.html. Use [ -z "$FOO" ] && [ -z "$BAR" ] to have more reliable code.
– Charles Duffy
Aug 10 '18 at 17:18
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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
...ide procedure, when my query param was set using variable e.g. SET @value='foo'.
What was causing this was mismatched collation_connection and Database collation. Changed collation_connection to match collation_database and problem went away. I think this is more elegant approach than adding COLLAT...
Should I instantiate instance variables on declaration or in the constructor?
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I got burned in an interesting way today:
class MyClass extends FooClass {
String a = null;
public MyClass() {
super(); // Superclass calls init();
}
@Override
protected void init() {
super.init();
if (something)
a = getStringY...
C# vs Java Enum (for those new to C#)
...r even if i am a fan of java. C# supports easy integer declaration such as FOO = 0 which is easier to use in ORM tools (no error prone ordinal() usage necessary). Further C# supports bitwise enumerations which are often very usefull, especially in combination with EntityFramework. Java should extend...
When should use Readonly and Get only properties
...e construction of an object (in the constructor).
private string _name = "Foo"; // field for property Name;
private bool _enabled = false; // field for property Enabled;
public string Name{ // This is a readonly property.
get {
return _name;
}
}
public bool Enabled{ // This is a read- a...
How to add a line break in C# .NET documentation
..., it's working :)
/// <summary>
/// Value: 0/1/2
/// <para/>0 foo,
/// <para/>1 bar,
/// <para/>2 other
/// </summary>
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