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Java 8 Streams: multiple filters vs. complex condition
...tions which will yield to a faster execution, if there is any difference.
Combining two filter instances creates more objects and hence more delegating code but this can change if you use method references rather than lambda expressions, e.g. replace filter(x -> x.isCool()) by filter(ItemType::i...
Gson: How to exclude specific fields from Serialization without annotations
...iddleName": "J.", "initials": "P.F", "lastName": "Fry", "country": { "id": 91}}
I assume the country object is initialized with id = 91L in student class.
You may get fancy. For example, you do not want to serialize any field that contains "name" string in its name. Do this:
public boolean sho...
Get Character value from KeyCode in JavaScript… then trim
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How to get year/month/day from a date object?
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Determining if a number is either a multiple of ten or within a particular set of ranges
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How can I add a vertical scrollbar to my div automatically?
... is appearing on Page load time in FF but disappeared when page loading is completed!
– jay
Aug 12 '13 at 9:55
"You ne...
Get hours difference between two dates in Moment Js
... the OP aware of a typo that most IDE's would reveal to you anyway ( imgur.com/a/ikyayIL ). SO rep is first in best dressed while others work for scraps smh. Oh you fixed a typo.. here's 4.7k rep
– zanderwar
Jul 4 '19 at 3:19
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Validating email addresses using jQuery and regex
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UPDATES
http://so.lucafilosofi.com/jquery-validate-e-mail-address-regex/
using new regex
added support for Address tags (+ sign)
function isValidEmailAddress(emailAddress) {
var pattern = /^([a-z\d!#$%&'*+\-\/=?^_`{|}~\u00A0-\uD7FF\uF900-\uFDC...
keytool error :java.io.IoException:Incorrect AVA format
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Probably you entered illegal character(something like ,(comma)) in a field for Name, Organization or somewhere else.
Of course if you really want some charachter can be escaped with \ sign
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Summarizing multiple columns with dplyr? [duplicate]
...38 2.873786
#> 3: 3 2.854701 2.948718 2.951567 3.062678
Let's try to compare performance.
library(dplyr)
library(purrrlyr)
library(data.table)
library(bench)
set.seed(123)
n <- 10000
df <- data.frame(
a = sample(1:5, n, replace = TRUE),
b = sample(1:5, n, replace = TRUE),
c = sam...