what ternary operator

Example 1: The trap of the ternary operator1 int i =n; 2 String str1 = string.valueof (i ); 3 String str2 = string.valueof (i ); 4 System.out.println (STR1); // Output: 5 System.out.println (STR2); // Output: 90.0When you use the ternary operator

UGLIFYJS is a tool for compressing and beautifying JavaScript, and in its documentation, I've seen several ways to optimize if statements. Although I have not used it to do some experimental testing, but from here I can see that it does make JS a

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: Null

1.1 If statement: The IF statement refers to some sort of processing if a certain condition is met. 1 Public classIfdemo {2 Public Static voidMain (string[] args) {3 intx = 5;4 if(X ) {5X + +;6 }7 System.out.println (x)

One, operator1. Arithmetic operators:(1) When mixing operations: Byte,short,char does not convert to each other, it is automatically promoted to the int type. Other types of blending operations are small data types that are promoted to large:

Calculate file size The size of the main calculation file, the default is bytes, so use the ternary operator, to convert.Convert into BYTES->KB->MB->GB /** * @param the size of the $size file bytes * @return String String * Calculate File Size*/

The assignment operator also has the same usage as the arithmetic operator, as mentioned in the Appendix: for example, to add 4 to X and then assign it to x, you can write x+=4. Copy Code code as follows: public class mathops{ public

Use:: To refer to constants (including classes and modules) and constructors (such as Array () or nokogiri::html ()).Never use:: To invoke a method. # bad someclass::some_method some_object::some_method # good

(1) variable = A If exper else b(2) variable = (Exper and [b] or [C]) [0](2) variable = exper and B or C The above three uses all can achieve the goal, like C language variable = exper? B:C: If the value of the Exper expression is true then

First, Introduction Python's conditions and looping statements determine the program's control flow and reflect the diversity of the structure. It is important to understand if, while, for, and the else, elif, break, continue, and pass statements

Conditional statementWhen you write code, you often need to perform different behaviors according to different conditions. You can use conditional statements in your code to accomplish this task. In the web effects, we can use the following

Spring expression language abbreviation: Spel,spel can be used independently of the spring container, or can be used in the spring configuration file, which greatly simplifies the bean configuration of spring, and gives the configuration file a

First, use the common ternary operator if (foo) bar (); else Baz (); ==> Foo?bar (): Baz (); if (!foo) bar (); else Baz (); ==> Foo?baz (): Bar (); if (foo) return bar (); else return Baz (); ==> return Foo?bar (): Baz (); For the above use

Several methods about the optimization of IF statements. Although I have not used it to do some experimental testing, but from here I can see that it does make JS a landscaping work. Perhaps some people think that if statement is so simple, can seek

The keyword is lowercase and the first letter of the class name is capitalized. Two. Identifiers can only be made up of 26 English letters, numbers, underscores (_), Dollar signs ($). The number cannot begin, and the keyword cannot be used. Three. 1.

The same points in groovy and Java are:6+, 4+, 8+, 12+, 13, 14, 15, +, 20+, 21, 22, 23, 28+, 29+,, and 31+, 32+ + means groovy not only covers the syntax of Java, but it also has an enhanced section. The different points of groovy and Java are:0, 1,

Integers and decimals can have an error because the decimal is converted to a binary number, which can be an infinite loop decimal, such that an integer is converted to a floating-point, and then the result of the operation is forced 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

UGLIFYJS is a tool for compressing and beautifying JavaScript, and in its documentation, I've seen several ways to optimize if statements. Although I have not used it to do some experimental testing, but from here I can see that it does make JS a

As of today (2014.2), the latest stable version of PHP is PHP5.5, but almost half of the users are still using PHP5.2, which is not in the maintenance [note], and half the rest are using PHP5.3 [note].Because of PHP's "hundred Family" of the egg