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Convert php array to Javascript
...oore - if you're going to be pedantic about it, json_encode outputs a JSON string, which can represent either a JS object or a JS array, or even a single scalar value, if that's what you pass it. The examples in my answer will output a JavaScript array, not an object.
– Spudley...
Remove empty lines in text using Visual Studio
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Is this meant to work for strings or for code in the editor?
– Kyle Delaney
Apr 6 '17 at 19:35
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Why can I pass 1 as a short, but not the int variable i?
...oes the first and second Write work but not the last? Is there a way I can allow all 3 of them and detect if it was 1, (int)1 or i passed in? And really why is one allowed but the last? The second being allowed but not the last really blows my mind.
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C# 'is' operator performance
...double foo = 1.23;
}
class Program
{
static void Main(string[] args)
{
MyClass myobj = new MyClass();
int n = 10000000;
Stopwatch sw = Stopwatch.StartNew();
for (int i = 0; i < n; i++)
{
boo...
Select a Dictionary with LINQ
... and value.
class SomeObject
{
public int ID { get; set; }
public string Name { get; set; }
}
SomeObject[] objects = new SomeObject[]
{
new SomeObject { ID = 1, Name = "Hello" },
new SomeObject { ID = 2, Name = "World" }
};
Dictionary<int, string> objectDictionary = objects....
Convert Enumeration to a Set/List
...m) method.
public class EnumerationToList {
public static void main(String[] args) {
Vector<String> vt = new Vector<String>();
vt.add("java");
vt.add("php");
vt.add("array");
vt.add("string");
vt.add("c");
Enumeration<Str...
Android -Starting Service at Boot Time
...1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true">
<activity android:name=".BR_Example"
android:label="@string/app_name">
<intent-filter>
<action android:name=...
What is the difference between an ordered and a sorted collection?
...ived from the elements themselves. For example, if you have a SortedSet<String> then the Strings will be sorted according to the lexicographical sort order.
An ordered Collection can be sorted but doesn't have to be (e.g. after using Collections.sort()) when the external ordering is identical...
Get selected option from select element
...y there. So you need to fetch the text you want, then put it in the .text(string) method on the object you want to set, like I have above.
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JavaScript validation for empty input field
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An input field can have whitespaces, we want to prevent that.
Use String.prototype.trim():
function isEmpty(str) {
return !str.trim().length;
}
Example:
const isEmpty = str => !str.trim().length;
document.getElementById("name").addEventListener("input", function() {
if(...