log( foo === 'new test' ); // Create a function that will modify the variable foo function test() { var foo = 'old test'; } // However, when called, 'foo' remains within the scope // of the function test(); // Which is confirmed, as foo is still equal to 'new test' co...
First, it seems a little odd that you would want a function that can take a variable number of arguments and not know the names of the arguments. Though obviously this being coldfusion overriding functions is done in the non-normal way of isdefined() within the function. It still seems od...
Suppose we have to print ordered pairs of the form (i, j) where i is 0, 1, 2 and j is 0, 1, 2. The way we'd do so is to first set i = 0 in the outer loop and then iterate with j set to 0, 1 and 2 in the inner loop; then increment i and repeat the iteration ...
Object:This is defined as an unordered collection of key/value pairs (i.e.key:value). Each object begins with a left curly bracket{and ends with a right curly bracket}. Multiple key/value pairs are separated by a comma,. Array:This is defined as an ordered list of values. An array ...
Note The JavaScript map() method is not the same as the JavaScript Map object, which stores an ordered sequence of key-value pairs. What is the JavaScript map() Function? The JavaScript map() function is a built-in method belonging to the Array object prototype. It is one of JavaScript’...
functionT(){ } T.prototype =newP(); vartt =newT(); alert(tt);//3 3、JSON JSON建构于两种结构: (1)“名称/值”对的集合(A collection of name/value pairs)。不同的语言中,它被理解为对象(object),纪录(record),结构(struct),字典(dictionary),哈希表(hash table),有键列表(keyed list),或者...
// Collection of data in key-value pairs var obj1 = { x: 43, y: "Hello world!", z: function(){ return this.x; } } // Collection of data as an ordered list var array1 = [5, "Hello", true, 4.1]; Note- It is important to remember that any data type that is not a pr...
var modelMethods = ['keys', 'values', 'pairs', 'invert', 'pick', 'omit']; // Mix in each Underscore method as a proxy to Model#attributes..each(modelMethods, function(method) { Model.prototype[method] = function() { var args = slice.call(arguments); args.unshift(this.attributes)...
Iterate over array elements or object key-value pairs. Returning false from the iterator function stops the iteration. $.each(['a', 'b', 'c'], function(index, item){ console.log('item %d is: %s', index, item) }) var hash = { name: 'zepto.js', size: 'micro' } $.each(hash...
function Point(x,y) { //constructor this.x = x; this.y = y; this.f = function() { return x + y; } } Point.static_member = 5; // 静态变量 Point.static_function = function { return static_member; } // 静态方法 正则表达式:支持的特殊字符有:[...]、[^...]、\w、\W、\s、...