前端开发问题
What is the purpose of new Boolean() in Javascript?(Javascript中new Boolean()的目的是什么?)
When to use the double not (!!) operator in JavaScript(何时在 JavaScript 中使用双非 (!!) 运算符)
Logical operator || in javascript, 0 stands for Boolean false?(逻辑运算符 ||在 javascript 中，0 代表 Boolean false?)
Is lt;boolean expressiongt; amp;amp; statement() the same as if(lt;boolean expressiongt;) statement()?(是lt;布尔表达式gt;amp;amp;statement() 和 if(布尔表达式) statement() 一样吗?)
In JavaScript, why is quot;0quot; equal to false, but when tested by #39;if#39; it is not false by itself?(在 JavaScript 中，为什么是“0?等于假，但是当通过“如果测试时，它本身不是假的?)
Return Statement in JS Constructors(JS 构造函数中的返回语句)
Return value inside a setInterval(setInterval 内的返回值)
Do I have to return something in javascript function?(我必须在javascript函数中返回一些东西吗?)
Assigning variable from jquery ajax call returns undefined(从 jquery ajax 调用分配变量返回未定义)
When to use return, and what happens to returned data?(何时使用 return，返回的数据会发生什么?)
How to capture enter key being pressed on pages containing multiple forms?(如何捕获在包含多个表单的页面上按下的输入键?)
Difference between return Error and throw Error(返回错误和抛出错误的区别)
