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Creating range in JavaScript - strange syntax
...0); //true
arr[0]; //'a'
Object.keys(arr); //['0', '1', '2']
arr.length; //3, implies arr[3] === undefined
//we expand the array by 1 item
arr.length = 4;
arr[3]; //undefined
arr.hasOwnProperty(3); //false
Object.keys(arr); //['0', '1', '2']
We get to the inherent difference between the number of...
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Concatenating string and integer in python
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answered Jul 19 '12 at 10:43
user647772user647772
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Erland Sommarskog has maintained the authoritative answer to this question for the last 16 year...
