Ext.Object
Files
A collection of useful static methods to deal with objects.
Available since: 4.0.0
Methods
Returns a new object with the given object as the prototype chain.
Available since: 4.1.0
Parameters
- object : Object
The prototype chain for the new object.
Iterates through an object and invokes the given callback function for each iteration.
The iteration can be stopped by returning false in the callback function. For example:
var person = {
name: 'Jacky'
hairColor: 'black'
loves: ['food', 'sleeping', 'wife']
};
Ext.Object.each(person, function(key, value, myself) {
console.log(key + ":" + value);
if (key === 'hairColor') {
return false; // stop the iteration
}
});
Available since: 4.0.0
Parameters
Converts a query string back into an object.
Non-recursive:
Ext.Object.fromQueryString("foo=1&bar=2"); // returns {foo: '1', bar: '2'}
Ext.Object.fromQueryString("foo=&bar=2"); // returns {foo: null, bar: '2'}
Ext.Object.fromQueryString("some%20price=%24300"); // returns {'some price': '0'}
Ext.Object.fromQueryString("colors=red&colors=green&colors=blue"); // returns {colors: ['red', 'green', 'blue']}
Recursive:
Ext.Object.fromQueryString(
"username=Jacky&"+
"dateOfBirth[day]=1&dateOfBirth[month]=2&dateOfBirth[year]=1911&"+
"hobbies[0]=coding&hobbies[1]=eating&hobbies[2]=sleeping&"+
"hobbies[3][0]=nested&hobbies[3][1]=stuff", true);
// returns
{
username: 'Jacky',
dateOfBirth: {
day: '1',
month: '2',
year: '1911'
},
hobbies: ['coding', 'eating', 'sleeping', ['nested', 'stuff']]
}
Available since: 4.0.0
Parameters
- queryString : String
The query string to decode
- recursive : Boolean (optional)
Whether or not to recursively decode the string. This format is supported by PHP / Ruby on Rails servers and similar.
Defaults to:
false
Returns
Returns the first matching key corresponding to the given value. If no matching value is found, null is returned.
var person = {
name: 'Jacky',
loves: 'food'
};
alert(Ext.Object.getKey(person, 'food')); // alerts 'loves'
Available since: 4.0.0
Parameters
Gets all keys of the given object as an array.
var values = Ext.Object.getKeys({
name: 'Jacky',
loves: 'food'
}); // ['name', 'loves']
Available since: 4.0.0
Parameters
- object : Object
Returns
- String[]
An array of keys from the object
Gets the total number of this object's own properties
var size = Ext.Object.getSize({
name: 'Jacky',
loves: 'food'
}); // size equals 2
Available since: 4.0.0
Parameters
- object : Object
Returns
- Number
size
Gets all values of the given object as an array.
var values = Ext.Object.getValues({
name: 'Jacky',
loves: 'food'
}); // ['Jacky', 'food']
Available since: 4.0.0
Parameters
- object : Object
Returns
- Array
An array of values from the object
Merges any number of objects recursively without referencing them or their children.
var extjs = {
companyName: 'Ext JS',
products: ['Ext JS', 'Ext GWT', 'Ext Designer'],
isSuperCool: true,
office: {
size: 2000,
location: 'Palo Alto',
isFun: true
}
};
var newStuff = {
companyName: 'Sencha Inc.',
products: ['Ext JS', 'Ext GWT', 'Ext Designer', 'Sencha Touch', 'Sencha Animator'],
office: {
size: 40000,
location: 'Redwood City'
}
};
var sencha = Ext.Object.merge(extjs, newStuff);
// extjs and sencha then equals to
{
companyName: 'Sencha Inc.',
products: ['Ext JS', 'Ext GWT', 'Ext Designer', 'Sencha Touch', 'Sencha Animator'],
isSuperCool: true,
office: {
size: 40000,
location: 'Redwood City',
isFun: true
}
}
Available since: 4.0.0
Parameters
- destination : Object
The object into which all subsequent objects are merged.
- object : Object...
Any number of objects to merge into the destination.
Returns
- Object
merged The destination object with all passed objects merged in.
Converts a name - value pair to an array of objects with support for nested structures. Useful to construct
query strings. For example:
var objects = Ext.Object.toQueryObjects('hobbies', ['reading', 'cooking', 'swimming']);
// objects then equals:
[
{ name: 'hobbies', value: 'reading' },
{ name: 'hobbies', value: 'cooking' },
{ name: 'hobbies', value: 'swimming' },
];
var objects = Ext.Object.toQueryObjects('dateOfBirth', {
day: 3,
month: 8,
year: 1987,
extra: {
hour: 4
minute: 30
}
}, true); // Recursive
// objects then equals:
[
{ name: 'dateOfBirth[day]', value: 3 },
{ name: 'dateOfBirth[month]', value: 8 },
{ name: 'dateOfBirth[year]', value: 1987 },
{ name: 'dateOfBirth[extra][hour]', value: 4 },
{ name: 'dateOfBirth[extra][minute]', value: 30 },
];
Available since: 4.0.0
Parameters
- name : String
- value : Object/Array
- recursive : Boolean (optional)
True to traverse object recursively
Defaults to:
false
Returns
Takes an object and converts it to an encoded query string.
Non-recursive:
Ext.Object.toQueryString({foo: 1, bar: 2}); // returns "foo=1&bar=2"
Ext.Object.toQueryString({foo: null, bar: 2}); // returns "foo=&bar=2"
Ext.Object.toQueryString({'some price': '0'}); // returns "some%20price=%24300"
Ext.Object.toQueryString({date: new Date(2011, 0, 1)}); // returns "date=%222011-01-01T00%3A00%3A00%22"
Ext.Object.toQueryString({colors: ['red', 'green', 'blue']}); // returns "colors=red&colors=green&colors=blue"
Recursive:
Ext.Object.toQueryString({
username: 'Jacky',
dateOfBirth: {
day: 1,
month: 2,
year: 1911
},
hobbies: ['coding', 'eating', 'sleeping', ['nested', 'stuff']]
}, true); // returns the following string (broken down and url-decoded for ease of reading purpose):
// username=Jacky
// &dateOfBirth[day]=1&dateOfBirth[month]=2&dateOfBirth[year]=1911
// &hobbies[0]=coding&hobbies[1]=eating&hobbies[2]=sleeping&hobbies[3][0]=nested&hobbies[3][1]=stuff
Available since: 4.0.0
Parameters
- object : Object
The object to encode
- recursive : Boolean (optional)
Whether or not to interpret the object in recursive format. (PHP / Ruby on Rails servers and similar).
Defaults to:
false
Returns
- String
queryString