append interview questions
Top append frequently asked interview questions
I have a certain textbox and I want to add a div after it.
I've tried the .append() function, but that only adds the div in the element.
For example, I have:
<input type="text" id="bla" />
and I want to change that into:
<input type="text" id="bla" /><div id="space"></div>
Source: (StackOverflow)
What is the prescribed way to append a value to an Array in CoffeeScript? I've checked the PragProg CoffeeScript book but it only discusses creating, slicing and splicing, and iterating, but not appending.
Source: (StackOverflow)
How can I use .append() with effects like show('slow')
Having effects on append doesn't seem to work at all, and it give the same result as normal show(). No transitions, no animations.
How can I append one div to another, and have a slideDown or show('slow') effect on it?
Source: (StackOverflow)
I've got 2 ways I can create a <div> using jQuery.
Either:
var div = $("<div></div>");
$("#box").append(div);
Or:
$("#box").append("<div></div>");
What are the drawbacks of using second way other than re-usability?
Source: (StackOverflow)
Given two lists:
x = [1,2,3]
y = [4,5,6]
What is the syntax to:
- Insert
x into y such that y now looks like [1, 2, 3, [4, 5, 6]]?
- Insert all the items of
x into y such that y now looks like [1, 2, 3, 4, 5, 6]?
Source: (StackOverflow)
In PHP I would add strings together like this:
$foo = "Hello";
$foo .= " World";
So $foo would be "Hello World"
How would I do that in Bash?
Source: (StackOverflow)
How do you append to the file instead of overwriting it? Is there a special function that appends to the file?
Source: (StackOverflow)
If there are two arrays created in swift like this:
var a:[CGFloat] = [1, 2, 3]
var b:[CGFloat] = [4, 5, 6]
How can they be merged to [1, 2, 3, 4, 5, 6]?
Source: (StackOverflow)
This question already has an answer here:
I have two dictionaries and I'd like to be able to make them one:
Something like this pseudo-Python would be nice:
dic0 = {'dic0': 0}
dic1 = {'dic1': 1}
ndic = dic0 + dic1
# ndic would equal {'dic0': 0, 'dic1': 1}
Source: (StackOverflow)
Prepending to a list is easy:
user=> (conj '(:bar :baz) :foo)
(:foo :bar :baz)
Appending to a vector is easy:
user=> (conj [:bar :baz] :foo)
[:bar :baz :foo]
How do I (idiomatically) prepend to a vector, while getting back a vector?
This does not work as it returns a seq, not a vector:
user=> (cons :foo [:bar :baz])
(:foo :bar :baz)
This is ugly (IMVHO):
user=> (apply vector (cons :foo [:bar :baz]))
[:foo :bar :baz]
Note: I basically just want a datastructure that I can append and prepend to. Appending to large lists should have a large performance penalty, so I thought of vectors..
Source: (StackOverflow)
Why do these two operations (append() resp. +) give different results?
>>> c = [1, 2, 3]
>>> c
[1, 2, 3]
>>> c += c
>>> c
[1, 2, 3, 1, 2, 3]
>>> c = [1, 2, 3]
>>> c.append(c)
>>> c
[1, 2, 3, [...]]
>>>
In the last case there's actually an infinite recursion. c[-1] and c are the same. Why is it different with the + operation?
Source: (StackOverflow)