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// Type checking console.log($.type([])); // "array" console.log($.type(null)); // "null" console.log($.type(function(){})); // "function" // Numeric check console.log($.isNumeric('3.14')); // true console.log($.isNumeric('abc')); // false // Empty object console.log($.isEmptyObject({})); // true console.log($.isEmptyObject({ a: 1 })); // false // Search in array var fruits = ['apple', 'banana', 'cherry']; var idx = $.inArray('banana', fruits); // 1 // Filter array var evens = $.grep([1,2,3,4,5], function (n) { return n % 2 === 0; }); console.log(evens); // [2, 4]
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