Created
June 15, 2013 15:38
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some simple jquery functions
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$ = { | |
each : function(obj, callback) { | |
if ($.isArray(obj)) { | |
for(var i=0, j=obj.length; i<j ; i++) { | |
callback(i, obj[i]); | |
} | |
} else { | |
for(var k in obj) { | |
callback(k, obj[k]); | |
} | |
} | |
}, | |
map : function(arr, fn) { | |
var out = []; | |
$.each(arr, function(i, elt) { | |
var result = fn(elt); | |
if (result !== undefined) { | |
out.push(result); | |
} | |
}); | |
return out; | |
}, | |
extend : function(dst, src) { | |
if (typeof src != 'object') { | |
return dst; | |
} | |
for(var k in src) { | |
if (src.hasOwnProperty(k)) { | |
dst[k] = src[k]; | |
} | |
} | |
return dst; | |
}, | |
isArray : function(obj) { | |
if (!obj) { | |
return false; | |
} | |
return (obj.constructor.toString().indexOf("Array") != -1); | |
}, | |
inArray : function(elt, arr) { | |
for(var i=0, j=arr.length; i<j ; i++) { | |
if(arr[i] === elt) | |
return i; | |
} | |
return -1; | |
}, | |
isEmptyObject : function(obj) { | |
if (typeof obj !== 'object') { | |
return false; | |
} | |
var isEmpty = true; | |
$.each(obj, function(k, elt) { | |
isEmpty = false; | |
}); | |
return isEmpty; | |
} | |
} |
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