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exercise4 - 刘磊 #134

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exercise4 - 刘磊 #134

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1 change: 1 addition & 0 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
},
"homepage": "https://github.com/FE-star/exercise4#readme",
"devDependencies": {
"mocha": "^3.5.0",
"should": "^11.2.1"
}
}
12 changes: 8 additions & 4 deletions test/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,8 @@ describe('this', function () {
say: function () {
setTimeout(() => {
// this 是什么？想想为什么？
this.should.equal(null)
//obj
this.should.equal(obj)
done()
}, 0)
}
Expand All @@ -15,7 +16,8 @@ describe('this', function () {
it('global', function () {
function test() {
// this 是什么？想想为什么？
this.should.equal(null)
//node下global
this.should.equal(global)
}
test()
})
Expand All @@ -26,8 +28,9 @@ describe('this', function () {
say: function () {
function _say() {
// this 是什么？想想为什么？
this.should.equal(null)
this.should.equal(global)
}
//此处obj为undefined
return _say.bind(obj)
}()
}
Expand All @@ -39,8 +42,9 @@ describe('this', function () {
obj.say = function () {
function _say() {
// this 是什么？想想为什么？
this.should.equal(null)
this.should.equal(obj)
}
//硬绑定
return _say.bind(obj)
}()
obj.say()
Expand Down