ES6 new feature 7: array expansion details, es6 new feature expansion details
This article describes how to expand the array of ES6's new features. We will share this with you for your reference. The details are as follows:
1. Array. from ()
1) Array. the from method is used
Reference:http://m.blog.csdn.net/blog/pcsxk/38501579First,VMware to expand the original disk spaceThis is more intuitive.1. In the shutdown state, select disk---Utilities, expand2. Change the "max disk size" to the value you need in the pop-up window [my: 25g->120g]3. After the extension is complete, VMware will prompt you to manually partition the virtual machine system in order to use the expanded spaceSecond, start the virtual machine system, partition (GParted)1, install the free partition t
automatically mount the boot[~]# Vi/etc/fstab#/etc/fstab# Created by Anaconda on Fri Oct 14 22:27:19 2016## Accessible filesystems, by reference, is maintained under '/dev/disk '# See mans Pages Fstab (5), Findfs (8), mount (8) and/or Blkid (8) for more info#UUID=BD82CAD1-2B0A-4984-9846-06E690B1FDAD/EXT3 Defaults 1 1Uuid=6d8f8e24-7849-4ad9-af35-7e8fb71eb7ec/boot ext3 Defaults 1 2uuid=dc268ee4-ba91-471f-9acf-94d0a2658083 swap swap defaults 0 0TMPFS/DEV/SHM TMPFS Defaults 0 0Devpts/dev/pts devpts
Extension Method.
I believe everyone has heard or used this new feature, which is one of my favorite new features.
When we need to extend the functions of an existing class, we usually think of inheritance, inherit the existing class, and then add new behaviors to it. The extension method added in C #3.0 provides another way to implement function
1, expansion already has the LV on the LVM1.1 New PV--pvcreate/dev/sd*1.2 Add the new PV to the LVM-->vgextend vg_ruiy/dev/sd*1.3 Viewing LVM--vgdisplay-v Vg_ruiy after adding PV1.4 Expansion LV---lvextend-l + 20g/dev/vg_ruiy/lv_root1.5 File system Expansion--resize2fs/dev/v
Reference: http://kubernetes.kansea.com/docs/hellonode/Now you should be able to access this via this address service : Http://EXTERNAL_IP: 8080 or runcurl http://EXTERNAL_IP:8080If you are accessing a new Web service through a browser or CURL, you should see some running logs:kubectl logs One of the great features of Kubernetes is that he can easily expand your application. Suppose you suddenly need to add your app; you just need to tell deployment
Uncover new features of SQL Server 2014 (2)-SSD Buffer Pool (buffer Pool) expansion, 2014 Buffer
Introduction
Another good feature in SQL Server 2014 is that SSD can be virtualized into a portion of the memory for the SQL Server data page buffer. By using SSD to expand the Buffer-Pool, a large number of random IOPS can be carried by SSD, thus greatly reducing random IOPS and PAGE-OUT for data pages.
Ssd as
Scenario Description:Eureka cluster node has two, mutual registration form a cluster, has supported dynamic refresh (do not know how to let Eureka support dynamic refresh can refer to http://www.cnblogs.com/flying607/p/8459397.html), is already running , use Nginx to do load balancing, proxy the cluster, the service's registry address directly write Nginx address.Now you want to add a Eureka node to this cluster without restarting any services.The steps to extend the
8 wrapper classes for 8 basic data typesBYTE byteShort Shortint IntegerLong Longfloat floatDouble DoubleChar CharacterBoolean BooleanInteger a=127; Integer b= 127; // The virtual machine is automatically boxed when the special processing, -127~128 the following automatically take theSystem.out.println (a==b); result is trueIf it is an integer a=128; Integer b=128;System.out.println (a==b); The result is falseSystem.out.println (a.equals (b)); The comparison is the content, because the replicatio
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