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What is a 'SAM type' in Java?
...bda expressions like this:
Callable<String> strCallable = () -> "Hello world!";
System.out.println(strCallable.call()); // prints "Hello world!"
Lambda expressions in this context are mostly just syntactic sugar. They look better in code than anonymous classes and are less restrictive on...
How can I exclude directories from grep -R?
...rd /path/to/search
Example : I want to find files that contain the word 'hello'. I want to search in all my linux directories except proc directory, boot directory, sys directory and root directory :
grep -rli --exclude-dir={proc,boot,root,sys} hello /
Note : The example above needs to be root
...
Using margin:auto to vertically-align a div
... margin: auto auto;
}
<div id="parent">
<div id="child">hello world</div>
</div>
Note that the width/height do not have to be specified absolutely, as in this example jfiddle which uses sizing relative to the viewport.
Although browser support for flexboxes is at...
What's the use of ob_start() in php?
...but don't quite do anything with it yet."
For example:
ob_start();
echo("Hello there!"); //would normally get printed to the screen/output to browser
$output = ob_get_contents();
ob_end_clean();
There are two other functions you typically pair it with: ob_get_contents(), which basically gives yo...
Get local href value from anchor (a) tag
...property sets or returns the value of the href attribute of a link.
var hello = domains[i].getElementsByTagName('a')[0].getAttribute('href');
var url="https://www.google.com/";
console.log( url+hello);
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How to make a new line or tab in XML (eclipse/android)?
...nd use
'\n'
from where you want to break your line.
ex. <string> Hello world. \n its awesome. <string>
Output:
Hello world.
its awesome.
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HTTPS setup in Amazon EC2
...
Hello - I'm running a T2.Micro Amazon Linux EC2 instance. I'm using node.js to prop the server up. I am listening to port 443 in my server script and my security group is configured for port 443. What else do I have to do to ...
Smart way to truncate long strings
... 'hi-diddly-ho there, neighbo…'
or underscore.string's truncate.
_('Hello world').truncate(5); => 'Hello...'
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CSS Font Border?
... width and color */
font-family: sans; color: yellow;
}
<h1>Hello World</h1>
Another possible trick would be to use four shadows, one pixel each on all directions, using property text-shadow:
h1 {
/* 1 pixel black shadow to left, top, right and bottom */
te...
Should I be using object literals or constructor functions?
...rototype.greetFullName = function() {
return "PersonObjConstr says: Hello " + this.firstname +
" " + this.lastname;
};
// Object Literal
var personObjLit = {
firstname : "John",
lastname: "Doe",
greetFullName : function() {
return "personObjLit says: Hello " + this.f...