Tymeleaf common syntax: using asterisk expressions

When dealing with templates, the variable expression ${...} is generally used to display variables, and the selected object expression * {...}, also known as the asterisk expression, is also used.If the object is selected first in the template, you need to use an asterisk expression. The built-in object effect of Thymeleaf is equivalent to an a ...

Posted on Fri, 18 Oct 2019 10:36:12 -0700 by pspfreak101

shell script regular expression one of the three swordsmen (grep,egrep)

Regular expressions for Shell scripts One of the three regular expression swordsmen: grep 1. Before learning regular expressions, let's take a useless configuration file as a test exercise. [root@localhost ~]# vim chen.txt #version=DEVEL System authorization information auth --enableshadow --passalgo=sha512# Use CDROM installation media c ...

Posted on Fri, 11 Oct 2019 04:33:25 -0700 by DataRater

Generator of ES6 New Features

1: Basic concepts In fact, Generator is a generator of traversal. We can use Generator to generate a traversal. Generator has two distinct features: the first is that there is an asterisk between the function keyword and the function name, which is generally written together. The second is that there is a yield key inside the function body. ...

Posted on Mon, 30 Sep 2019 16:13:28 -0700 by rohithreddyk

Python introductory knowledge summary, programming beginners'benefits, open the door to Python for you

Python string String is a string of characters consisting of numbers, letters and underscores. It is generally recorded as: s="a1a2a3···" It is a data type that represents text in a programming language. python's list of strings has two values in order: Starting with the default 0 of the left-to-right ...

Posted on Wed, 25 Sep 2019 00:10:02 -0700 by TheVoice

First Understanding RabbitMQ Arrangement

Introduction to RabbitMQ RabbitMQ is a message queue that acts as a proxy, allowing software and applications to connect and expand. These applications can be linked together to form a larger application, or connect user equipment and data. Message system achieves asynchronization and decoupling of applications by separating the sending and re ...

Posted on Mon, 05 Aug 2019 03:42:42 -0700 by ctsttom

Javascript on the Development of Asynchronous Programming

Preface PS: 2018/08/08 to simplify2018/08/09 Retypesetting layout, full use of ES6 code and directly attached to the output results, supplementary details2018/08/13 Supplement Async. await with examples2008/08/20 Added Async. await and Proise. all How to use them in traversal situations As mentioned above, about Javascript Execution Mechanism - ...

Posted on Mon, 05 Aug 2019 00:09:47 -0700 by thompsonsco

javascript coding specification

Preface In practice, we should often see some code that has no function problems, but the coding style and specifications are very bad, which often makes people dare not read further, and even affects the mood of the reader for a day. These codes are not only hard to read, but also hard to maintain. They are usually written by beginners or ...

Posted on Wed, 03 Jul 2019 12:12:31 -0700 by Loriq

async function of JS asynchronism

This article is the last in a series of articles entitled Deep Understanding of ECMAScript 6 Asynchronous Programming. The Meaning and Usage of Generator Function The Meaning and Usage of Thunk Function The meaning and usage of co function library The Meaning and Usage of async Function I. Ultimate Solution Asynchronous operation is a trou ...

Posted on Sun, 16 Jun 2019 13:00:49 -0700 by amandas

MYSQL must read notes

Chapter 9 Searching with Regular Expressions Chapter X Creation of Calculating Fields Chapter 11 Use of Data Processing Functions Chapter XII Summary Data 12.1 Aggregate Function We often need to aggregate data rather than actually retrieve it, providing an aggregation function for MySQL. Determines the number of rows in the tab ...

Posted on Sat, 15 Jun 2019 17:28:00 -0700 by rxero

[Python] wxPython Edit Box Component Learning Summary (Original)

1. Summary 1. Constructions of four common edit boxes 1. Normal Edit Box        Simple edit box with one-line input (? For the object in the box, the same below)       self.textBox = wx.TextCtrl(parent = ?) 2. Password edit box        Asterisk masks the password box of the input character       self.textBox = wx.TextCtrl ...

Posted on Sat, 01 Jun 2019 10:19:24 -0700 by zinc