// Code to execute if condition2 is true } else { // Code to execute if all conditions are false } 在这个if-else if语句中,如果“condition1”是true,第一个代码块就会执行。如果“condition1”是false,但“condition2”是true,第二个代码块就会执行。如果所有条件都为false,最后一个代码块就会执行。
// block of code to be executed if the condition1 is false and condition2 is false } Parameter Values ParameterDescription conditionRequired. An expression that evaluates to true or false More Examples If time is less than 10:00, create a "Good morning" greeting, if not, but time is less...
除了只使用一個if語句,我們還可以使用稱為if and else if語句的東西。這允許我們新增多個if語句,每個語句都有不同的條件,並且每個程式碼塊都可以執行不同的程式碼。下面的程式碼片段顯示了這一點。 vararr=[5,25,70,62,20,89];arr.forEach(num=>{if((num>50)&&(num<100)){console.log('The number ...
You start by checking if a particular condition is met. If that condition hasn’t been met, you can check if another condition is met. Finally, if none of the previous conditions are met, you can use the else statement to run additional code. Below is an example of how you would wri...
问使用javascript简化带有多个变量的if条件EN我正在开发jquery数据tablr插件，并需要根据某些标准筛选表数据...
Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licen...
I working with an ssrs document and have images with a go to url that I inserted a JavaScript javascrpt:void(window.open http:\ the command completed works on a url command line within edge but if I click on the item nothing happens with the ssrs… ...
if (tree1.val === tree2.val) { // recursively compare the left and right subtrees return compareTrees(tree1.left, tree2.left) && compareTrees(tree1.right, tree2.right); } } // if any of the above conditions are not met, return false ...
functionshowList(employees){employees.forEach(employee=>{varexpectedSalary=employee.calculateExpectedSalary();varexperience=employee.getExperience();varportfolio;if(employee.type==='manager'){portfolio=employee.getMBAProjects();}else{portfolio=employee.getGithubLink();}vardata={expectedSalary:expectedSalary...
// bad var count = 1; if (true) { count += 1; } // good, use the let. let count = 1; if (true) { count += 1; }2.3 注意: let、const都是块级作用域 // const and let only exist in the blocks they are defined in. { let a = 1; const b = 1; } console.log(a);...