26 lines
467 B
Markdown
26 lines
467 B
Markdown
importance: 3
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---
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# Explain the value of "this"
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In the code above we intend to call `user.go()` method 4 times in a row.
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But calls `(1)` and `(2)` works differently from `(3)` and `(4)`. Why?
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```js run no-beautify
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let obj, method;
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obj = {
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go: function() { alert(this); }
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};
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obj.go(); // (1) [object Object]
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(obj.go)(); // (2) [object Object]
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(method = obj.go)(); // (3) undefined
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(obj.go || obj.stop)(); // (4) undefined
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```
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