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Double vs. BigDecimal?
...es store values as binary and therefore might introduce an error solely by converting a decimal number to a binary number, without even doing any arithmetic.
Decimal numbers (like BigDecimal), on the other hand, store each decimal digit as is. This means that a decimal type is not more precise than...
Hidden features of HTML
...ost people I speak to don't tend to realise that it exists.
Example:
<select>
<optgroup label="Swedish Cars">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
</optgroup>
<optgroup label="German Cars">
<opt...
Spring DAO vs Spring ORM vs Spring JDBC
... can then write code like this:
int nbRows = jdbcTemplate.queryForObject("select count(1) from person", Integer.class);
Person p = jdbcTemplate.queryForObject("select first, last from person where id=?",
rs -> new Person(rs.getString(1), rs.getString(2)),
13456135165...
rbenv not changing ruby version
...ving with YUM in Centos 7, only after that I could see the correct version selected in rbenv
– Joe Walker
Jun 16 '16 at 22:26
...
How is a non-breaking space represented in a JavaScript string?
...
That entity is converted to the char it represents when the browser renders the page. JS (jQuery) reads the rendered page, thus it will not encounter such a text sequence. The only way it could encounter such a thing is if you're double enc...
LINQ equivalent of foreach for IEnumerable
...d evaluating Funcs
var evaluatedObservable = observable.ToEnumerable().Select(func => func()).ToList();
//Win
Assert.That(evaluatedObservable,
Is.EquivalentTo(values.ToList()));
}
The following fails with the error:
Expected: equivalent to < 0, 1, 2, 3, 4, 5, 6, 7, 8, ...
How to remove elements from a generic list while iterating over it?
...
Select the elements you do want rather than trying to remove the elements you don't want. This is so much easier (and generally more efficient too) than removing elements.
var newSequence = (from el in list
...
How to pass the -D System properties while testing on Eclipse?
...
Run -> Run configurations, select project, second tab: “Arguments”. Top box is for your program, bottom box is for VM arguments, e.g. -Dkey=value.
share
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What is the difference between call and apply?
...u need to change the value of this for the function call. An example (that convert a functions arguments-object to an array): Array.prototype.slice.call(arguments) or [].slice.call(arguments). apply makes sense if you have the arguments in an array, for example in a function that calls another funct...
Adding local .aar files to Gradle build using “flatDirs” is not working
... to why my next button is grayed out on the Create New Module dialog after selecting Import JAR/AAR Package?
– Kevin Crain
Nov 9 '16 at 8:50
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