A collection of useful static methods to deal with objects
Iterate through an object and invoke the given callback function for each iteration. The iteration can be stop
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
}
});
The object to iterate
The callback function. Passed arguments for each iteration are:
keyvalueobject The object itself(Optional) The execution scope (this) of the callback function
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': '$300'} 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']]
}
The query string to decode
(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 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(sencha, 'loves')); // alerts 'food'
The value to find
Gets the total number of this object's own properties
var size = Ext.Object.getSize({
name: 'Jacky',
loves: 'food'
}); // size equals 2
size
Gets all values of the given object as an array.
var values = Ext.Object.getValues({
name: 'Jacky',
loves: 'food'
}); // ['Jacky', 'food']
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: 30000,
location: 'Redwood City'
isFun: true
}
}
,...
merged The object that is created as a result of merging all the objects passed in.
Convert 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 },
];
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': '$300'}); // 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']]
// 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
The object to encode
(optional) Whether or not to interpret the object in recursive format. (PHP / Ruby on Rails servers and similar). Defaults to false
queryString