WebMar 21, 2024 · ReferenceError: Cannot access ‘xxx‘ before initialization 执行下面代码let myname= 'kaimo666'{ console.log(myname) let myname= 'kaimo777'}最终打印结果分析原因在块作用域内，let声明的变量被提 … WebDec 8, 2024 · 10. Classes, like variables declared with const and let, cannot be referenced before the line that initializes them runs. For example, the following is forbidden: console.log (foo); const foo = 'foo'; class es have the same rule. Here, you're calling init before the class Color line has run. The fix is to do: const foo = 'foo'; console.log (foo ...

ReferenceError: Cannot access ‘xxx‘ before initialization

WebDec 7, 2024 · 1 Answer. Sorted by: 10. Classes, like variables declared with const and let, cannot be referenced before the line that initializes them runs. For example, the … WebJul 27, 2024 · Solution 1 The accepted answer does not handle when you need to spy on the const declaration, as it is defined inside the module factory scope. For me, the module factory needs to be above any import statement that eventually imports the thing you want to mock. Here is a code snippet using a nestjs with prisma library. irish parade new orleans 2023

Can I control function inlining? Babel is causing "Cannot access ...

WebThe "ReferenceError: Cannot access before initialization" error occurs when a variable declared using let or const is accessed before it was initialized in the scope. To solve … WebJun 23, 2024 · 4. On this line. const {a} = r [a]; You are trying to define a new variable a, which depends on using a to access a property of r. Also, const { a } means you are trying to access the property a of r [a]. This can only work if r [a] returns an object which also has it's own keys to destructure like so: r = { name: { a: 'Bart' }, location: { a ... WebNov 6, 2024 · Uncaught ReferenceError: Cannot access XXX before initialization ( vitejs & react ) 13 ReferenceError: Cannot access 'steps' before initialization ... Cannot access '____' before initialization useEffect. Load 7 more related questions Show fewer related questions Sorted by: ... port authority of cayman islands