大约有 21,000 项符合查询结果（耗时：0.0392秒） [XML]
Round to at most 2 decimal places (only if necessary)
...ath.round(+arr[0] + "e" + sig + (+arr[1] + scale)) + "e-" + scale);
}
}
https://plnkr.co/edit/uau8BlS1cqbvWPCHJeOy?p=preview
NOTE: This is not a universal solution for everyone. There are several different rounding algorithms, your implementation can be different, depends on your requirements. ht...
What is the difference between parseInt(string) and Number(string) in JavaScript? [duplicate]
...
parseInt("123qwe")
returns 123
Number("123qwe")
returns NaN
In other words parseInt() parses up to the first non-digit and returns whatever it had parsed. Number() wants to convert the entire string into a number, which can also ...
Node.js Unit Testing [closed]
...
An example would be
var is = require("vows-is");
is.suite("testing is fun").batch()
.context("is testing fun?")
.topic.is("yes")
.vow.it.should.equal("yes")
.suite().run({
reporter: is.reporter
});
More examples
...
How does the C code that prints from 1 to 1000 without loops or conditional statements work?
... exit(j+1) are essentially the same thing - quoting C99 §6.3.2.1/4:
A function designator is an expression that has function type. Except when it is the
operand of the sizeof operator or the unary & operator, a function designator with
type "function returning type" is converted to an e...
Should struct definitions go in .h or .c file?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
I have a class that will download a file from a https server. When I run it, it returns a lot of errors. It seems that I have a problem with my certificate. Is it possible to ignore the client-server authentication? If so, how?
...
Autoincrement VersionCode with gradle extra properties
...sible.
This script will create a version number which looks like v1.3.4 (123) and build an apk file like AppName-v1.3.4.apk.
Major version ⌄ ⌄ Build version
v1.3.4 (123)
Minor version ⌃|⌃ Patch version
Major version: Has to be changed manually for bigger changes.
...
ALTER DATABASE failed because a lock could not be placed on database
...nnection 1 (leave running for a couple of minutes)
CREATE DATABASE TESTING123
GO
USE TESTING123;
SELECT NEWID() AS X INTO FOO
FROM sys.objects s1,sys.objects s2,sys.objects s3,sys.objects s4 ,sys.objects s5 ,sys.objects s6
Connections 2 and 3
set lock_timeout 5;
ALTER DATABASE TESTING123 SET ...
How can I tell if one commit is a descendant of another commit?
...
https://stackoverflow.com/a/13526591/895245 mentions it, now to make it more human friendly:
git-is-ancestor() (
if git merge-base --is-ancestor "$1" "$2"; then
echo 'ancestor'
elif git merge-base --is-ancestor "$2...
How to get hosting Activity from a view?
...
I like this solution written in Kotlin
tailrec fun Context?.getActivity(): Activity? = when (this) {
is Activity -> this
else -> (this as? ContextWrapper)?.baseContext?.getActivity()
}
Usage in View class
context.getActivity()
Decompiled code:
public stati...