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Which is better, number(x) or parseFloat(x)?
...erence between parseFloat and Number
parseFloat/parseInt is for parsing a string, while Number/+ is for coercing a value to a number. They behave differently. But first let's look at where they behave the same:
parseFloat('3'); // => 3
Number('3'); // => 3
parseFloat('1.501'); // => 1.501...
What's the difference between array_merge and array + array?
...rged);
This outputs:
plus sign merge
array(4) {
["a"]=>
string(3) "one"
["b"]=>
string(3) "two"
["c"]=>
string(5) "three"
[3]=>
string(12) "number three"
}
array_merge function merge
array(4) {
["a"]=>
string(6) "fourth"
[...
Is there a MySQL command to convert a string to lowercase?
...se the functions LOWER() or LCASE().
These can be used both on columns or string literals. e.g.
SELECT LOWER(column_name) FROM table a;
or
SELECT column_name FROM table a where column = LOWER('STRING')
LCASE() can be substituted for LOWER() in both examples.
...
How to set Sqlite3 to be case insensitive when string comparing?
I want to select records from sqlite3 database by string matching. But if I use '=' in the where clause, I found that sqlite3 is case sensitive. Can anyone tell me how to use string comparing case-insensitive?
...
What is the minimum valid JSON?
...json.org/ but I'm not sure I know the answer to the simple question. What strings are the minimum possible valid JSON?
8 A...
How to get the Android device's primary e-mail address
...ccounts) {
if (emailPattern.matcher(account.name).matches()) {
String possibleEmail = account.name;
...
}
}
Note that this requires the GET_ACCOUNTS permission:
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
More on using AccountManager can be f...
How to switch to the new browser window, which opens after click on the button?
...u can switch between windows as below:
// Store the current window handle
String winHandleBefore = driver.getWindowHandle();
// Perform the click operation that opens new window
// Switch to new window opened
for(String winHandle : driver.getWindowHandles()){
driver.switchTo().window(winHandl...
Read data from SqlDataReader
...er rdr = cmd.ExecuteReader())
{
while (rdr.Read())
{
var myString = rdr.GetString(0); //The 0 stands for "the 0'th column", so the first column of the result.
// Do somthing with this rows string, for example to put them in to a list
listDeclaredElsewhere.Add(myString...
Access Enum value using EL with JSTL
...
A simple comparison against string works:
<c:when test="${someModel.status == 'OLD'}">
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Reading a resource file from within jar
...blic class MyClass {
public static InputStream accessFile() {
String resource = "my-file-located-in-resources.txt";
// this is the path within the jar file
InputStream input = MyClass.class.getResourceAsStream("/resources/" + resource);
if (input == null) {
...