大约有 30,000 项符合查询结果（耗时：0.0261秒） [XML]
javascript toISOString() ignores timezone offset [duplicate]
I am trying to convert Twitter datetime to a local iso-string (for prettyDate) now for 2 days. I'm just not getting the local time right..
...
Prevent HTML5 video from being downloaded (right-click saved)?
...
that depends on the browser. i have seen times (especially firefox and chrome) that if the video is fully loaded, when you hit "save" they just pick the video from the cache instead of re-downloading (the video is already downloaded in the cache, why download it aga...
Converting RGB to grayscale/intensity
... Blin = B^gamma
where gamma is 2.2 for many PCs.
The usual R G B are sometimes written as R' G' B' (R' = Rlin ^ (1/gamma))
(purists tongue-click) but here I'll drop the '.
Brightness on a CRT display is proportional to RGBlin = RGB ^ gamma,
so 50% gray on a CRT is quite dark: .5 ^ 2.2 = 22% of ma...
Find out a Git branch creator
... Should this work on Windows? I got "Input file specified two times."
– Steve Chambers
Mar 25 '15 at 11:32
...
Amazon S3 boto - how to create a folder?
...creating keys.
You can see my below code i was creating a folder with utc_time as name.
Do remember ends the key with '/' like below, this indicates it's a key:
Key='folder1/' + utc_time + '/'
client = boto3.client('s3')
utc_timestamp = time.time()
def lambda_handler(event, context):
UTC_...
How to check if a string is a valid JSON string in JavaScript without using Try/Catch
...ing that isn't JSON})
I also prefer to return the parsed JSON at the same time, so the calling code doesn't have to call JSON.parse(jsonString) a second time.
This seems to work well for my needs:
function tryParseJSON (jsonString){
try {
var o = JSON.parse(jsonString);
// Ha...
REST API 404: Bad URI, or Missing Resource?
...to hide the HTTP communication related code and I used this helper all the time when I called my rest APIs from my code.
BUT I needed to write confusing extra code just because HTTP 404 had two different functions:
the real HTTP 404 when the rest API is not available in the given url, it is throw...
How to declare global variables in Android?
...ing disk, hitting network, anything blocking, etc) will be performed every time Application is instantiated! You may think, well, this is only once for the process and I'll have to pay the cost anyways, right? For instance, as Dianne Hackborn mentions below, it is entirely possible for your process...
How would Git handle a SHA-1 collision on a blob?
...it commit" again since this will create a new hash (because of the changed timestamp)
For #5 and #9, you will typically get an error like this:
fatal: 1000000000000000000000000000000000000000 is not a valid 'tree' object
when running "git commit"
If someone tries to clone your corrupt repositor...
Which UUID version to use?
...on 1: This generates a unique ID based on a network card MAC address and a timer. These IDs are easy to predict (given one, I might be able to guess another one) and can be traced back to your network card. It's not recommended to create these.
Version 4: These are generated from random (or pseudo-r...