前端开发问题
javascript .filter() true booleans(javascript .filter() 真正的布尔值)
Why does {} == false evaluate to false while [] == false evaluates to true?(为什么 {} == false 评估为 false 而 [] == false 评估为 true?)
Converting string quot;truequot; / quot;falsequot; to boolean value(转换字符串“true/“假为布尔值)
Equality of truthy and falsy values (JavaScript)(真值和假值的相等性 (JavaScript))
Why if([]) is validated while [] == false in javascript?(为什么 if([]) 被验证而 [] == false 在javascript中?)
How to fire jQuery function only if form is valid(仅当表单有效时如何触发 jQuery 函数)
In javascript, is an empty string always false as a boolean?(在 javascript 中，空字符串是否总是错误的布尔值?)
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?)
