use # operator instead of : for playground method binding to remove ambiguous syntax
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@@ -52,11 +52,11 @@ if (!Object.prototype.hasOwnProperty.call(obj, "x")) obj.x = 2;
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### Method binding
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```javascript
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var fn = obj:method;
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var fn = obj:method("foob");
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var fn = obj#method;
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var fn = obj#method("foob");
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["foo", "bar"].map(:toUpperCase); // ["FOO", "BAR"]
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[1.1234, 23.53245, 3].map(:toFixed(2)); // ["1.12", "23.53", "3.00"]
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["foo", "bar"].map(#toUpperCase); // ["FOO", "BAR"]
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[1.1234, 23.53245, 3].map(#toFixed(2)); // ["1.12", "23.53", "3.00"]
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```
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equivalent to:
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