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Infinite scrolling with React JS
...
Basically when scrolling you want to decide which elements are visible and then rerender to display only those elements, with a single spacer element on top and bottom to represent the offscreen elements.
Vjeux made a fiddle her...
Why does int num = Integer.getInteger(“123”) throw NullPointerException?
...cuous sounding names
If your code misbehaves
Make sure you're calling the right methods
Read the library documentation
For API designers
Don't violate the principle of least astonishment
Don't violate the abstraction hierarchy
Don't use similar names for wildly differ...
form_for with nested resources
...er.rb
app/controllers/comments_controller.rb
just as it says at http://guides.rubyonrails.org/routing.html#nested-resources, with no special namespaces.
But partials and forms become tricky. Note the square brackets:
<%= form_for [@article, @comment] do |f| %>
Most important, if you want...
How to compare if two structs, slices or maps are equal?
... option.
func TestPerson(t *testing.T) {
type person struct {
ID int
Name string
}
p1 := person{ID: 1, Name: "john doe"}
p2 := person{ID: 2, Name: "john doe"}
println(cmp.Equal(p1, p2))
println(cmp.Equal(p1, p2, cmpopts.IgnoreFields(person{}, "ID")))
...
Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?
...es not seem to take advantage of this basic optimization method (you might call this common subquery elimination).
Temporary tables are a different matter, because you are providing more guidance on how the query should be run. One major difference is that the optimizer can use statistics from the...
angularjs: ng-src equivalent for background-image:url(…)
... ng-src which has the purpose that you won't receive an error for an invalid url before angularjs gets to evaluate the variables placed in between {{ and }} .
...
Adding data attribute to DOM
... It also has to be a string - $('div').attr('data-info', ''+info.id)
– daviestar
Mar 17 '14 at 5:15
1
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How To Check If A Key in **kwargs Exists?
...your code slower, and requires a bit more typing, but if interfaces of the called function (in this case print) changes, you don't need to change your code. This approach reduces development time while supporting all interface changes.
...
How can I make an svg scale with its parent container?
... viewbox="0 0 1000 1000"
Viewbox is an important attribute because it basically tells the SVG what size to draw and where. If you used CSS to make the SVG 1000x1000 px but your viewbox was 2000x2000, you would see the top-left quarter of your SVG.
The first two numbers, min-x and min-y, determine ...
Finding the Eclipse Version Number
...eclipseproduct in the main folder, and it contains:
name=Eclipse Platform
id=org.eclipse.platform
version=3.x.0
So that seems more straightforward than my original answer below.
Also, Neeme Praks mentions below that there is a eclipse/configuration/config.ini which includes a line like:
eclipse...