¿Cómo puedo crear una matriz JavaScript (formato JSON) dinámicamente?
Estoy intentando crear lo siguiente:
var employees = {"accounting": [ // accounting is an array in employees.
{ "firstName" : "John", // First element
"lastName" : "Doe",
"age" : 23 },
{ "firstName" : "Mary", // Second Element
"lastName" : "Smith",
"age" : 32 }
] // End "accounting" array.
} // End Employees
Empecé con
var employees = new Array();
¿Cómo continúo creando el array dinámicamente (podría cambiar firstName
con variable)? Parece que no entiendo bien la matriz anidada.
101
4 answers
Nuestra matriz de objetos
var someData = [
{firstName: "Max", lastName: "Mustermann", age: 40},
{firstName: "Hagbard", lastName: "Celine", age: 44},
{firstName: "Karl", lastName: "Koch", age: 42},
];
Con for...in
var employees = {
accounting: []
};
for(var i in someData) {
var item = someData[i];
employees.accounting.push({
"firstName" : item.firstName,
"lastName" : item.lastName,
"age" : item.age
});
}
O con Array.prototype.map()
, que es mucho más limpio:
var employees = {
accounting: []
};
someData.map(function(item) {
employees.accounting.push({
"firstName" : item.firstName,
"lastName" : item.lastName,
"age" : item.age
});
}
218
Author: Alex,
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2018-01-04 15:38:12
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2018-01-04 15:38:12
var accounting = [];
var employees = {};
for(var i in someData) {
var item = someData[i];
accounting.push({
"firstName" : item.firstName,
"lastName" : item.lastName,
"age" : item.age
});
}
employees.accounting = accounting;
31
Author: Chase,
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2014-03-21 21:07:30
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2014-03-21 21:07:30
Lo que hago es algo un poco diferente de @Chase respuesta:
var employees = {};
// ...and then:
employees.accounting = new Array();
for (var i = 0; i < someArray.length; i++) {
var temp_item = someArray[i];
// Maybe, here make something like:
// temp_item.name = 'some value'
employees.accounting.push({
"firstName" : temp_item.firstName,
"lastName" : temp_item.lastName,
"age" : temp_item.age
});
}
¡Y esa obra me forma!
Espero que pueda ser útil para algún otro cuerpo!
4
Author: Alex Ventura,
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2016-06-19 21:28:11
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/ajaxhispano.com/template/agent.layouts/content.php on line 61
2016-06-19 21:28:11
var student = [];
var obj = {
'first_name': name,
'last_name': name,
'age': age,
}
student.push(obj);
2
Author: Venu Upadhyay,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/ajaxhispano.com/template/agent.layouts/content.php on line 61
2017-06-24 18:24:56
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2017-06-24 18:24:56