Niyaz niyazpk
niyazpk
/ gist:1461275
Created
December 11, 2011 16:02
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| // extensible - boolean | |
| Object.isExtensible(object) // find out if an object is extensible | |
| Object.preventExtensions(object) // You cannot add any more properties. | |
| Object.seal(object) // Cannot delete properties anymore. | |
| Object.freeze(object) // seals + makes every property read-only |
niyazpk
/ gist:1461698
Created
December 11, 2011 17:32
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| if( !Number.prototype.trunc ) { | |
| Number.prototype.trunc = function trunc(number){ | |
| return Math[ number >=0 ? 'floor' : 'ceil' ](number); | |
| }; | |
| } |
niyazpk
/ gist:1461777
Created
December 11, 2011 17:50
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| var long_line_1 = "This is a \ | |
| long line"; // ok | |
| var long_line_2 = "This is a \ | |
| long line"; // syntax error | |
| // because there is a space after \ in the second statement |
niyazpk
/ gist:1461787
Created
December 11, 2011 17:52
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| //Convert a Number to a String | |
| str = num.toString() | |
| str = String(num) | |
| //Convert a String to a Number | |
| num = Number(str); | |
| num = +str; | |
| num = parseInt(str, 10); | |
| parseInt("12em") === 12 // stops at first non digit |
niyazpk
/ gist:1461856
Created
December 11, 2011 18:08
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| // Templates: | |
| param = { media: 'http://media.valvion.com/' }; | |
| url = "{media}logo.gif".supplant(param); | |
| // Unfortunately, supplant method is not there in ES5 spec, | |
| // so use the below prototype: | |
| if (!String.prototype.supplant) { | |
| String.prototype.supplant = function (o) { |
niyazpk
/ gist:1461902
Created
December 11, 2011 18:17
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| // subscript notation [] | |
| list = [1, 2, 3]; | |
| list[list.length] = 4; | |
| // don't use dot notation with arrays |
niyazpk
/ gist:1461926
Created
December 11, 2011 18:22
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| myArray = ['a', 'b', 'c', 'd']; | |
| delete myArray[1]; | |
| // ['a', undefined, 'c', 'd']; | |
| myArray.splice(1, 1) | |
| // ['a', 'c', 'd']; |
niyazpk
/ gist:1507056
Created
December 21, 2011 18:17
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| User-agent: * | |
| Disallow: /wp-content/ | |
| Disallow: /wp-icludes/ | |
| Disallow: /trackback/ | |
| Disallow: /wp-admin/ | |
| Disallow: /archives/ | |
| Disallow: /category/ | |
| Disallow: /tag/* | |
| Disallow: /tag/ |
niyazpk
/ gist:1507098
Created
December 21, 2011 18:28
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| User-agent: * | |
| Disallow: /wp-admin | |
| Disallow: /wp-includes |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset='utf-8'> | |
| <title>JavaScript Chess</title> | |
| <link rel="stylesheet" type="text/css" href="css/style.css"> | |
| </head> | |
| <body> | |
| <div id='board'> | |
| </div> |