log('hello'); }; // Here is some equivalent code, using the {...} shorthand // along with key-value pairs for defining properties var obj = { // Set the property names and values using key/value pairs val: 5, click: function(){ console.log('hello'); } }; 事实上,除此之外,...
JSON is built upon two universal data structures. One is a collection of name/value pairs, which is known as anobjectin JSON. The other is an ordered list of values, which in JSON is known as anarray. JSON is often considered to be a strict subset of JavaScript. However, it can also...
(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),或者关联数组 (associative array)。 (2)值的有序列表(An ordered list of values)。在大部分语言中,它被理解为...
16.1. Defining a Basic JavaScript Object Problem You want to create a custom, reusable JavaScript object. Solution Define a new object explicitly using functional syntax, and then create new instances, passing in the data the object constructor is expecting: function Tune (song, artist) { this....
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 ...
Object - Used to store collection of data. Example: // 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 importa...
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...
Collection of key/ value pairs. It can also be an object, struct, record, dictionary, key list, array, or hash table. An ordered list of values can be an array, sequence, or vector. When you start working with JSON, JSON objects are represented using a .json file, but sometimes can...
ObjectMap Not directly iterableDirectly iterable Do not have a size propertyHave a size property Keys must be Strings (or Symbols)Keys can be any datatype Keys are not well orderedKeys are ordered by insertion Have default keysDo not have default keys ...
htmlbodydivConverting JavaScript object tostringdivdiv iddiv<script>constperson={name:"John Doe",age:30,isStudent:false};constjsonString=JSON.stringify(person);document.getElementById("demo").innerHTML=jsonString;</script></body></html>