大约有 21,000 项符合查询结果（耗时：0.0256秒） [XML]
How to check whether a Storage item is set?
... use hasOwnProperty method to check this
> localStorage.setItem('foo', 123)
undefined
> localStorage.hasOwnProperty('foo')
true
> localStorage.hasOwnProperty('bar')
false
Works in current versions of Chrome(Mac), Firefox(Mac) and Safari.
...
Connect to Amazon EC2 file directory using Filezilla and SFTP
...le field, browse your pem file: and click Connect
That's all :) have fun!
Note:
(Remember to allow SSH connection to your IP address from EC2) If not you will get connecting error message!
Note: Allowing your IP to connect your aws instance via SFTP
EC2 -> SecurityGroups -> SS...
Match whitespace but not newlines
...OINER
U+2060 WORD JOINER
U+FEFF ZERO WIDTH NON-BREAKING SPACE
Taken from https://en.wikipedia.org/wiki/White-space_character
The aforementioned Mongolian vowel separator isn't included for what is probably a good reason. It, along with 200C and 200D, occur within words (AFAIK), and therefore bre...
PostgreSQL: How to make “case-insensitive” query
...
Use LOWER function to convert the strings to lower case before comparing.
Try this:
SELECT id
FROM groups
WHERE LOWER(name)=LOWER('Administrator')
share...
Mockito : how to verify method was called on an object created within a method?
...
I agree with DuffJ, while functional programming is fun, there comes a point where your code interacts with the outside world. Doesn't matter if you call it "internals", "side effects", or "functionality", you definitely want to test that interaction:...
Regex using javascript to return just numbers
... the non-digit characters (\D or [^0-9]):
let word_With_Numbers = 'abc123c def4567hij89'
let word_Without_Numbers = word_With_Numbers.replace(/\D/g, '');
console.log(word_Without_Numbers)
share
|
...
change type of input field with jQuery
... with jQuery as below:
<script type="text/javascript">
function pwdFocus() {
$('#fakepassword').hide();
$('#password').show();
$('#password').focus();
}
function pwdBlur() {
if ($('#password').attr('value') == '') {...
What are the differences between ArrayList and Vector?
...hat if you have an ArrayList, you can use the Collections.synchronizedList function to create a synchronized list, thus getting you the equivalent of a Vector.
share
|
improve this answer
|...
How to check if Location Services are enabled?
...ng SHV-E160K, android 4.1.2, API 16. Although i make the GPS offline, this function still return true. I tested on Android Nougat, API 7.1 it works
– HendraWD
Nov 23 '16 at 9:11
...
Serializing to JSON in jQuery [duplicate]
...cts. For example, I am serializing SVG elements using: JSON.stringify(obj, function(key, val) { if (val instanceof SVGSVGElement) {return val.xml || new XMLSerializer().serializeToString(val);} return val;})
– Courtney Christensen
Feb 16 '12 at 0:03
...