学习?学个屁 06c63c15cc 初始化提交 10 月之前
..
.github 06c63c15cc 初始化提交 10 月之前
test 06c63c15cc 初始化提交 10 月之前
.eslintrc 06c63c15cc 初始化提交 10 月之前
CHANGELOG.md 06c63c15cc 初始化提交 10 月之前
LICENSE 06c63c15cc 初始化提交 10 月之前
README.md 06c63c15cc 初始化提交 10 月之前
accessor.d.ts 06c63c15cc 初始化提交 10 月之前
accessor.js 06c63c15cc 初始化提交 10 月之前
index.d.ts 06c63c15cc 初始化提交 10 月之前
index.js 06c63c15cc 初始化提交 10 月之前
mutator.d.ts 06c63c15cc 初始化提交 10 月之前
mutator.js 06c63c15cc 初始化提交 10 月之前
package.json 06c63c15cc 初始化提交 10 月之前
tsconfig.json 06c63c15cc 初始化提交 10 月之前

README.md

has-proto Version Badge

github actions coverage License Downloads

npm badge

Does this environment have the ability to set the [[Prototype]] of an object on creation with __proto__?

Example

var hasProto = require('has-proto');
var assert = require('assert');

assert.equal(typeof hasProto(), 'boolean');

var hasProtoAccessor = require('has-proto/accessor')();
if (hasProtoAccessor) {
	assert.equal([].__proto__, Array.prototype);
} else {
	assert(!('__proto__' in Object.prototype));
}

var hasProtoMutator = require('has-proto/mutator');
var obj = {};
assert('toString' in obj);

obj.__proto__ = null;
if (hasProtoMutator) {
	assert(!('toString' in obj));
} else {
	assert('toString' in obj);
	assert.equal(obj.__proto__, null);
}

Tests

Simply clone the repo, npm install, and run npm test