Javascript Typescript- tsconfig 中的目标是什么？
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Typescript- What is target in tsconfig?
提问by Ankit Raonka
I am quite new to Typescript. What does Target in tsconfig.json signify?
我对打字稿很陌生。tsconfig.json 中的 Target 是什么意思？
{
"compilerOptions":
{
"sourceMap": true,
"target": "es5",
"module": "commonjs",
"jsx": "react",
"moduleResolution": "classic",
"lib": [ "es2015", "dom", "es2017" ]
}
}
回答by basarat
I am quite new to Typescript. What does Target in tsconfig.json signify?
我对打字稿很陌生。tsconfig.json 中的 Target 是什么意思？
targetsignifies which target of JavaScript should be emitted from the given TypeScript. Examples:
target表示应该从给定的 TypeScript 发出 JavaScript 的哪个目标。例子：
target:es5
target:es5
()=>nullwill become function(){return null}as ES5 doesn't have arrow functions.
()=>null会变成function(){return null}ES5 没有箭头函数。
target:es6
target:es6
()=>nullwill become ()=>nullas ES6 has arrow functions.
()=>null将成为()=>nullES6 具有箭头功能。
回答by aizatto
Target changes the JavaScript version you are compiling to.
Target 会更改您正在编译的 JavaScript 版本。
The options are available at https://www.typescriptlang.org/docs/handbook/compiler-options.html
这些选项可在https://www.typescriptlang.org/docs/handbook/compiler-options.html 获得
In the spirit of trying to better understand how the target flag changes my code I compiled some test code to each of the different versions to have a better understanding of the differences.
本着试图更好地理解目标标志如何改变我的代码的精神，我为每个不同的版本编译了一些测试代码，以便更好地理解差异。
https://github.com/aizatto/typescript-playground/tree/master/dist/test-async-main
https://github.com/aizatto/typescript-playground/tree/master/dist/test-async-main
I'm also keeping notes of what I should be targeting depending on what environment I am looking at
我还会根据我正在查看的环境记录我应该瞄准的目标
