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Javascript Array_map


gilbertsavier
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Hi,Applies the callback to the elements in given arrays.function array_map( callback ) {02. // Applies the callback to the elements in given arrays. 03. //04. // version: 905.312205. // discuss at: http://phpjs.org/functions/array_map06. // + original by: Andrea Giammarchi (http://webreflection.blogspot.com)07. // + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)08. // + improved by: Brett Zamir (http://brett-zamir.me)09. // % note 1: Takes a function as an argument, not a function's name10. // % note 2: If the callback is a string, it can only work if the function name is in the global context11. // * example 1: array_map( function(a){return (a * a * a)}, [1, 2, 3, 4, 5] );12. // * returns 1: [ 1, 8, 27, 64, 125 ]13. var argc = arguments.length, argv = arguments;14. var j = argv[1].length, i = 0, k = 1, m = 0;15. var tmp = [], tmp_ar = [];16. 17. while (i < j) {18. while (k < argc){19. tmp[m++] = argv[k++];20. }21. 22. m = 0;23. k = 1;24. 25. if( callback ){26. if (typeof callback === 'string') {27. callback = this.window[callback];28. }29. tmp_ar[i++] = callback.apply(null, tmp);30. } else{31. tmp_ar[i++] = tmp;32. }33. 34. tmp = [];35. }36. 37. return tmp_ar;38.}

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