what ternary operator

-------Android Training, Java training, look forward to communicating with you! ----------The judgment structure of if/else Constitutionif (conditional expression) { expression 1;}Else{ expression 2;}This means that if the conditional

Operator data type conversions:Small data type--------> Big data type (automatic type conversion)Big Data Types---------> Small data types (coercion type conversions)To enforce the format of type conversions: Small data type variable name =

The Java Language Foundation consists of:(1) Keywords: words that are given special meaning, main is not a keyword(2) Identifier: Some of the custom name in the program, the custom name, consists of 26 letter case, the number 0-9,_$, the number can

Tag:echo    number     Global variables    .com    list     money   mod    format     presence     The one or three-dollar operator ternary operator can be evaluated directly when assigning variables, and then the assignment format: [on_true] if

Sequential structuresequence structure of the program: If there is no process control in the code, the program executes in the written format from the top and the next line, and then executes the next statement after the execution of a statement,

1. Embedding rules JavaScript programs should be included in the. js file as much as possible in the form of in the page when called. JavaScript code is not specific to the page, you should try to avoid writing JavaScript code directly in the page.

An expression C + + provides a rich operator and defines what these operators mean when the operands are of a built-in type. In addition, C + + supports operator overloading, allowing programmers to customize the meaning of the operator when used

First, global namespace pollution Always wrap the code inside an immediate function expression to form a separate module. Not recommended var x = ten, y = m; Console.log (window.x + ' + window.y '); Recommended ;(function

PHP It's a good language, and it's a lot of surprises. And today I saw an interesting way to blog in Arnold Daniels . He talked about the temporary variables in PHP . This secret is useful to " lazy " programmers, so that programmers can no longer

1. Use Ip2long () and Long2ip () to store IP addresses to the database in Integer (integer) format, rather than as a string. This reduces the storage space by almost half (char (15) 15 bytes, and the integer is 8 bytes), and it is easier to

5) Operators and Assignments Objective 1) Determine the result of applying any operator including assignment operators and instanceof to operands of any type class Scope or accessibility or any combination. 1. Unary operators. 1.1 Increment and

Little Insights (reference to the wind and snow and related information on the Internet): differences in reference and replication: We all know that the quote is actually: $a = 1; $b = $a; changing $a or $b will not affect each other. References

Conditional statements are used to perform different actions based on different conditions. Conditional statement Usually when writing code, you always need to perform different actions for different decisions. You can use conditional statements

The examples in this article describe the common tips for JavaScript. Share to everyone for your reference. The specific analysis is as follows: Boolean expressions of one, True, and False The following Boolean expression returns false:

Basic Operators An operator is a special symbol or phrase that is used to examine, manipulate, and combine values. For example, add a plus sign (+) that adds two values (let i = 1 + 2). More complex such as logic and (&&), self-increment (++i:

Asp.net| tutorial Mike the old cat From: The ideal of an old cat This tutorial is written in C # and ASP.net programming tutorials, what are the deficiencies please point out, or in the old cat ideal blog message. This is a brief introduction to

Operators are special symbols or phrases that are used to detect, change, or combine values. For example, the addition operator (+) adds two numbers together (such as let i = 1 + 2). More complex examples include logic and operators && (such as if

Determine the double exclamation mark in js. I checked some information on the Internet. He is equivalent to a ternary operator and returns a boolean value. Today, I read the qunit source code and found a strange piece of code. Although I can

------java training, Android training, iOS training,. NET training , look forward to communicating with you! -------　Program FlowFirst, the program flow controlAlso called statements, mainly include: judgment structure, choice structure and

To be honest, the book "C # Getting Started classic" is really great for beginners. The author first uses the console (command line) to debug the program without talking about the content, you can focus on the learned content to the maximum, instead