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How to use BigInteger?
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BigInteger is immutable. The javadocs states that add() "[r]eturns a BigInteger whose value is (this + val)." Therefore, you can't change sum, you need to reassign the result of the add method to sum variable.
sum = sum.add(Bi...
Should I use px or rem value units in my CSS? [closed]
...e of rem is 10px which means any value you might have written in px can be converted directly to rem by bumping a decimal place.
padding: 20px;
turns into
padding: 2rem;
The apparent font-size you choose is up to you, so if you want there's no reason you can't use:
:root {
font-size: 6.25%;...
Change default primary key in Eloquent
...t adds it for you (and will error out otherwise).
– Mint
Feb 7 '17 at 21:08
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H2 in-memory database. Table not found
...with URL "jdbc:h2:test" . I create a table using CREATE TABLE PERSON (ID INT PRIMARY KEY, FIRSTNAME VARCHAR(64), LASTNAME VARCHAR(64)); . I then select everything from this (empty) table using SELECT * FROM PERSON . So far, so good.
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How do I round a decimal value to 2 decimal places (for output on a page)
...cimal and Double type ToString method accepts argument for formatting. Try converting your value to Decimal/Double first.
– sohaiby
Mar 13 '16 at 8:05
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what is reverse() in Django
...to generate the url from your app's url configuration file: e.g. path('<int:profile.id>/profile', views.profile, name="profile").
But as the OP have noted, the use of reverse() is also commonly combined with the use of HttpResponseRedirect. But why?
I am not quite sure what this is but it...
How do I create a dynamic key to be added to a JavaScript object variable [duplicate]
... numeric value of the property whose name is numeric and whose value, when converted to a number, is the largest of all such properties. That sounds really weird, but it just means that given an array instance, the properties with names like "0", "5", "207", and so on, are all treated specially in t...
All Ruby tests raising: undefined method `authenticate' for nil:NilClass
...a Rails 3 application. It could be experiencing a few growing pains as it converts over.
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Read binary file as string in Ruby
I need an easy way to take a tar file and convert it into a string (and vice versa). Is there a way to do this in Ruby? My best attempt was this:
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Does Swift support reflection?
...th it :) here i've hacked out a little model serializer using it. Paste it into the Playground and have fun: gist.github.com/mchambers/67640d9c3e2bcffbb1e2
– Marc Chambers
Jun 25 '14 at 7:51
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