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[es6] import, export, default cheatsheet - 更多技术 - 清泛网 - 专注C/C++及内核技术
...re(x) + square(y));
}
//------ main.js ------
import { square, diag } from 'lib';
console.log(square(11)); // 121
console.log(diag(4, 3)); // 5
or
//------ main.js ------
import * as lib from 'lib';
console.log(lib.square(11)); // 121
console.log(lib.diag(4, 3)); // 5
2. Default exp...
Error 1801 : Security Error Receiving Blocks from Browser. - App Inven...
Error 1801 : Security Error Receiving Blocks from Browser.
-----------------------
[hide]App Inventor 对配套应用的每次调用都使用哈希函数（特别是 HMAC）进行签名，并且配套应用在执行代码之前会验证该哈希，以防止可能试图让您的手机执行恶...
PANIC: Broken AVD system path. Check your ANDROID_SDK_ROOT value [D:\A...
报错如下：PANIC: Broken AVD system path. Check your ANDROID_SDK_ROOT value [D:\APPinventor\AppInventor2\resources\app.asar.unpacked\Emulator\from-Android-SDK]!
Git interoperability with a Mercurial Repository
...
Update from June 2012. Currently there seem to be the following methods for Git/Hg interoperability when the developer wants to work from the git side:
Install Mercurial and the hg-git extension. You can do the latter using your p...
Should we use Nexus or Artifactory for a Maven Repo?
...al sources but need only one or two entries in your settings.xml
Deploying from Maven works out of the box (no need for WebDAV hacks, etc).
it's free
You can redirect access paths (i.e. some broken pom.xml requires "a.b.c" from "xxx"). Instead of patching the POM, you can fix the bug in Nexus and re...
What's wrong with foreign keys?
... multiple systems generally need to interface directly with the database - from other systems that just read data out (Crystal Reports) to systems that insert data (not necessarily using an API I've designed; it may be written by a dull-witted manager who has just discovered VBScript and has the SA ...
grunt: command not found when running from terminal
...all morning.
I was running the command "npm install -g grunt-cli" command from within a directory where my project was.
I tried again from my home directory (i.e. 'cd ~') and it installed as before, except now I can run the grunt command and it is recognised.
...
Converting newline formatting from Mac to Windows
...|\r/\r/g' inputfile > outputfile # Convert to old Mac
Code snippet from:
http://en.wikipedia.org/wiki/Newline#Conversion_utilities
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What's the difference between hard and soft floating point numbers?
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100
Hard floats use an on-chip floating point unit. Soft floats emulate one in software. The differ...
How do I remove a key from a JavaScript object? [duplicate]
...
The delete operator allows you to remove a property from an object.
The following examples all do the same thing.
// Example 1
var key = "Cow";
delete thisIsObject[key];
// Example 2
delete thisIsObject["Cow"];
// Example 3
delete thisIsObject.Cow;
If you're intereste...