In this JavaScript code, a variable called age is created and assigned a value of 15. Using an if statement, the code then checks if age is greater than or equal to 18. If the condition is true, the program prints, “You are an adult.” If the condition is false, it prints “You...
} while (i < 5); document.getElementById('example').innerHTML = result; 1. 2. 3. 4. 5. 6. 7. 运行结果为1 2 3 4 5这里"example"为: while语句 语法 while (condition) { statement } 1. 2. 3. condition 条件表达式,在每次循环前被求值。如果求值为真,statement就会被执行。如果求值为假...
// Code to execute if condition is true } else { // Code to execute if condition is false } 在这个if-else语句中,如果“condition”是true,第一个代码块就会执行。如果“condition”是false,第二个代码块就会执行。 JavaScript还提供了if-else if语句,允许在多个条件之间进行选择。以下是一个示例if-else...
Below is a segment of JavaScript code that will be executed only if the If Statement's conditional statement is true. In this simpleIf Statementexample, we print out a message if the variable we are checking is equal to 7. JavaScript Code: <!-- var myNum = 7; if(myNum == 7){do...
Example: else if condition Copy var mySal = 500; var yourSal = 1000; if( mySal > yourSal) { alert("My Salary is greater than your salary"); } else if(mySal < yourSal) { alert("My Salary is less than your salary"); } Try it JavaScript allows multiple else if ...
execute if neither condition1 nor condition2 is true } Example Program A renowned club in the town want to create a program to vet the age of the people applying for membership. They want to only allow people older than 18. For senior citizens, of age greater than 50, a 20% discount ...
代码语言:javascript 运行 AI代码解释 submit function validateForm(){ var value=parseInt(document.getElementById('textfield').value); if(value>100){ alert('value is no good. larger then 100'); return false; } } 如果你能给我看你的代码,我很乐意帮助你实现这样一个功能。 收藏分享票数...
0 - This is a modal window. No compatible source was found for this media. ageage}elseif(age<21){printf("You need to be over 21\n");}else{printf("You are over 18 and older than 21 so you can continue \n");}} Output
If thetest-conditionis true (a non zero value),set-of-statements/if bodywill be executed. Example Consider the following example - program to check whether entered number is negative or positive. #include <stdio.h>#include <stdlib.h>intmain(){intnumber;printf("Enter an integer number:"...
Else Without If is Invalid:Theelsestatement must always be associated with a precedingifstatement. Nested if-else Allowed:You can place aniforelse ifstatement inside anotherifstatement (nested if-else). Multiple else-if Conditions:Theelse ifcondition can be used multiple times before the finalelse...