在JavaScript 中,我们有以下条件语句:使用if 指定要执行的代码块,如果指定条件为真 使用else 指定要执行的代码块,如果相同条件为假 如果第一个条件为假,则使用 else if 指定要测试的新条件 使用switch 选择要执行的多个代码块之一浏览器支持Statement if/else Yes Yes Yes Yes Yes...
The else StatementUse the else statement to specify a block of code to be executed if the condition is false.if (condition) { block of code to be executed if the condition is true } else { block of code to be executed if the condition is false }...
Useelse ifto specify a new condition to test, if the first condition is false Useswitchto specify many alternative blocks of code to be executed Theswitchstatement is described in the next chapter. The if Statement Use theifstatement to specify a block of JavaScript code to be executed if ...
<HTML><HEAD><TITLE>A Simple JavascriptifelseStatement</TITLE><SCRIPT LANGUAGE="JavaScript">varage=parseInt(prompt("Please enter your age:",120))if(age<21)alert("Sorry, you are too young to enter")elsealert("Welcome in...")</SCRIPT></HEAD><BODY></BODY></HTML> ...
The else if Statement Use theelse ifstatement to specify a new condition if the first condition isfalse. SyntaxGet your own Java Server if(condition1){// block of code to be executed if condition1 is true}elseif(condition2){// block of code to be executed if the condition1 is false ...
条件语句中的else 什么是else else 就是对于if条件不满足的时候执行另一个代码块的入口 功能 当if...
if s == 'JavaScript' or s == 'jQuery' or s == 'ZinoUI': print(s + ' Tutorial') Output: jQuery Tutorial Write an if-else in a single line of code You can write an if-else statement in one line using a ternary expression. This can make the code more concise. ...
Practice Your Knowledge In PHP, how can you make the program decide which code block to execute? Using if statement Using if-else statement Using for loop Using while loop Using if-elseif-else statement Using switch statement Submit ...
PostgreSQL IF Statement PostgreSQL does not have a direct IF statement for use within SQL queries. However, conditional logic can be achieved using: 1. PL/pgSQL Blocks: The IF statement is available in PL/pgSQL blocks for procedural logic. ...
In the case of a conditional statement like this. if (something) {} else if (something) {} else {} What would be the appearance of the else if statement in a flowchart illustration? Solution 1: With http://code2flow.com, it is possible to generate flowcharts based on code. ...