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annotate source/examples/call-apply.js @ 162:77e87f1b5811 core-javascript

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$ hg merge core-javascript.closure-exercises # done, at least for now
author jf3243
date Wed, 09 Nov 2011 17:00:38 +0000
parents 48305b89a155
children
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d641e504a820 call-apply.js: New file. Added arguments_to_array().
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1 // Things related to call and apply that JS programmers should know.
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2
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d641e504a820 call-apply.js: New file. Added arguments_to_array().
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4 // Standard names for native code functions.
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5
d641e504a820 call-apply.js: New file. Added arguments_to_array().
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6 var array_slice = Array.prototype.slice;
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7 var function_call = Function.prototype.call;
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8 var function_apply = Function.prototype.apply;
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9
d641e504a820 call-apply.js: New file. Added arguments_to_array().
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10 var arguments_to_array = function(args){
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11
d641e504a820 call-apply.js: New file. Added arguments_to_array().
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12 return array_slice.call(args);
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13 };
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d641e504a820 call-apply.js: New file. Added arguments_to_array().
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16 (function()
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17 {
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18 var args = (function(){return arguments;})(0,1,2,3);
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19 '' + args === '[object Object]' || ddt();
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20 '' + arguments_to_array(args) === '0,1,2,3' || ddt();
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21 })();
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48305b89a155 call-apply.js: Added return_this() and isthisable().
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48305b89a155 call-apply.js: Added return_this() and isthisable().
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24 var return_this = function(){return this;};
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25 var global = return_this();
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27 var isthisable = function(obj){
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29 return return_this(obj) === global;
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30 };