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MongoDB: update every document on one field
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How to do it for oldvalue+"some string"
– Mahesh K
Nov 14 '17 at 11:05
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Validating URL in Java
...dard APIs in Java to validate a given URL?
I want to check both if the URL string is right i.e. the given protocol is valid and then to check if a connection can be established.
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Creating JSON on the fly with JObject
...perties.
This is a Sample User Properties
public class User
{
public string Name;
public string MobileNo;
public string Address;
}
and i want this property in newtonsoft JObject is:
JObject obj = JObject.FromObject(new User()
{
Name = "Manjunath",
MobileNo = "9876543210",
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Checking whether something is iterable
...et.
Also, don't be surprised that this function returns true if obj is a string, as strings iterate over their characters.
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How to avoid passing parameters everywhere in play2?
...in.scala.html template parameters and mark it as “implicit”:
@(title: String)(content: Html)(implicit menus: Seq[Menu])
<html>
<head><title>@title</title></head>
<body>
<div>
@for(menu<-menus) {
<a href="#">@menu.name...
Printing Lists as Tabular Data
...ermtables: https://github.com/nschloe/termtables
import termtables as tt
string = tt.to_string(
[["Alice", 24], ["Bob", 19]],
header=["Name", "Age"],
style=tt.styles.ascii_thin_double,
# alignment="ll",
# padding=(0, 1),
)
print(string)
+-------+-----+
| Name | Age |
+======...
raw_input function in Python
...g])), gets input from the user and returns the data input by the user in a string. See the docs for raw_input().
Example:
name = raw_input("What is your name? ")
print "Hello, %s." % name
This differs from input() in that the latter tries to interpret the input given by the user; it is usually ...
Compare integer in bash, unary operator expected
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Judging from the error message the value of i was the empty string when you executed it, not 0.
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What is @ModelAttribute in Spring MVC?
...ct to a Controller method by using the @ModelAttribute annotation:
public String processForm(@ModelAttribute("person") Person person){
person.getStuff();
}
On the other hand the annotation is used to define objects which should be part of a Model.
So if you want to have a Person object refere...
Why does parseInt(1/0, 19) return 18?
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The result of 1/0 is Infinity.
parseInt treats its first argument as a string which means first of all Infinity.toString() is called, producing the string "Infinity". So it works the same as if you asked it to convert "Infinity" in base 19 to decimal.
Here are the digits in base 19 along with t...