Created
November 4, 2019 11:11
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JS Bin // source https://jsbin.com/puqudin
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script id="jsbin-javascript"> | |
| //arrays are objects[subtype of objects] | |
| const user = [] | |
| // adding properties with dot notation vs | |
| // brakcets syntax | |
| //short hand way | |
| /*when using dot notation | |
| it does | |
| 1.Implicitly coercing value after(.) to string | |
| 2.name has to be a valid variable name | |
| 3.you canot just have like(user.0 or user.34r) | |
| 4.doing action `3` will return a syntax error. | |
| 5.if you want to have no `4` , then you | |
| will have to use bracket syntax | |
| */ | |
| user.name = "Waqar Hussain" | |
| //comprehensive way | |
| /* | |
| inside brakcets it can be any valid expression | |
| like number,string,functions(which return | |
| array, or string | |
| ) | |
| */ | |
| user[0] = "Waqar Hussain" | |
| user["0"] = "Waqar Hussain" | |
| user[(function(){return 2;})()] = | |
| "Waqar Hussain dsf" | |
| console.log(user) | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">//arrays are objects[subtype of objects] | |
| const user = [] | |
| // adding properties with dot notation vs | |
| // brakcets syntax | |
| //short hand way | |
| /*when using dot notation | |
| it does | |
| 1.Implicitly coercing value after(.) to string | |
| 2.name has to be a valid variable name | |
| 3.you canot just have like(user.0 or user.34r) | |
| 4.doing action `3` will return a syntax error. | |
| 5.if you want to have no `4` , then you | |
| will have to use bracket syntax | |
| */ | |
| user.name = "Waqar Hussain" | |
| //comprehensive way | |
| /* | |
| inside brakcets it can be any valid expression | |
| like number,string,functions(which return | |
| array, or string | |
| ) | |
| */ | |
| user[0] = "Waqar Hussain" | |
| user["0"] = "Waqar Hussain" | |
| user[(function(){return 2;})()] = | |
| "Waqar Hussain dsf" | |
| console.log(user) | |
| </script></body> | |
| </html> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| //arrays are objects[subtype of objects] | |
| const user = [] | |
| // adding properties with dot notation vs | |
| // brakcets syntax | |
| //short hand way | |
| /*when using dot notation | |
| it does | |
| 1.Implicitly coercing value after(.) to string | |
| 2.name has to be a valid variable name | |
| 3.you canot just have like(user.0 or user.34r) | |
| 4.doing action `3` will return a syntax error. | |
| 5.if you want to have no `4` , then you | |
| will have to use bracket syntax | |
| */ | |
| user.name = "Waqar Hussain" | |
| //comprehensive way | |
| /* | |
| inside brakcets it can be any valid expression | |
| like number,string,functions(which return | |
| array, or string | |
| ) | |
| */ | |
| user[0] = "Waqar Hussain" | |
| user["0"] = "Waqar Hussain" | |
| user[(function(){return 2;})()] = | |
| "Waqar Hussain dsf" | |
| console.log(user) |
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