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February 25, 2016 17:58
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Example JS Number Properties
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>JS Test</title> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script> | |
| </head> | |
| <body> | |
| <header> | |
| <h1>JS Test</h1> | |
| <p>Use console.</p> | |
| </header> | |
| <script> | |
| var alphaprops = {}; // <- Object, not an array | |
| var numberprops = {}; // <- Object, not an array | |
| // Order of prop assignment disagrees with natural order implied by prop names. | |
| alphaprops['three'] = "C"; | |
| alphaprops['two'] = "B"; | |
| alphaprops['one'] = "A"; | |
| // Order of prop assignment disagrees with natural order implied by prop names. | |
| // Note prop names are strings not numbers. | |
| numberprops['3'] = "C"; | |
| numberprops['2'] = "B"; | |
| numberprops['1'] = "A"; | |
| console.log("Alpha props"); | |
| // Yields props in the order assigned. | |
| _.each( alphaprops, function(prop){ | |
| console.log(prop); | |
| }); | |
| console.log("Numbers for props"); | |
| // Yields props reordered by numeric value of prop key, ascending. | |
| _.each( numberprops, function(prop){ | |
| console.log(prop); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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