“Forbidden non-null assertion”是指在TypeScript中使用非空断言操作符(!)时触发的规则错误。非空断言操作符!用于告诉TypeScript编译器,某个可能为null或undefined的表达式实际上是非空的。然而,在某些情况下,使用非空断言可能会掩盖潜在的null或undefined值,从而导致运行时错误。因此,一些TypeScript的ESLint规则(如@...
typescript non-null-assertion-operator 标题:TypeScript非空断言操作符 引言 TypeScript是一种静态类型检查的JavaScript超集,它提供了更强大的类型系统和编程工具,用于帮助开发人员在开发过程中发现和修复错误。TypeScript非空断言操作符是一种特殊的语法,允许开发人员明确告诉编译器一个表达式不会为null或undefined,从而消...
在TypeScript 中,“Forbidden non-null assertion @typescript-eslint/no-non-null-assertion” 是一个 ESLint 规则,用于禁止使用非空断言的语法。非空断言是在变量后面添加一个感叹号(!),表示该变量一定存在,不会为 null 或 undefined。 在本篇文章中,我将指导你如何使用 ESLint 和 typescript-eslint 插件来...
"@typescript-eslint/no-non-null-assertion": "error" } } 选项 该规则无需配置额外选项。 正例 interface Example { property?: string; } declare const example: Example; export const includesBaz = example.property?.includes('baz') ?? false; 反例 interface Example { property?: string; } decla...
I'm not sure what code was being analyzed when this was triggered, but my current workspace was the SDK when this came from the analysis server. SDK commit: 7bb6899 Internal error: Null check operator used on a null value #0 AstRewriter...
import type { SFCWithInstall } from '@element-plus/utils' CascaderPanel.install = (app: App): void => { app.component(CascaderPanel.name, CascaderPanel) app.component(CascaderPanel.name!, CascaderPanel) } const _CascaderPanel = CascaderPanel as SFCWithInstall<typeof CascaderPanel> 2 changes...
在.eslintrc.js的rules中添加如下内容: '@typescript-eslint/no-non-null-assertion': 'off'
When you use TypeScript's--strictNullChecksflag, you can prevent the type checker from throwing an error with Angular's non-null assertion operator,!. The Angular non-null assertion operator causes the TypeScript type checker to suspend strictnullandundefinedchecks for a specific property expressio...
As you can see, we've placed the non-null assertion operator (!) after the .shift() call. This tells TypeScript that the expression preceding the "!" operator will be non-null. TypeScript will therefore assume that the value returned by .shift() is of type "string" sin...
"no-non-null-assertion": true, "no-non-null-assertion": false, "no-redundant-jsdoc": true, "no-switch-case-fall-through": true, "no-var-requires": false, @@ -149,4 +149,4 @@ "rulesDirectory": [ "codelyzer" ] } } 0 comments on commit 83ab040 Please sign in to comme...