[
{
"uId": "2",
"tabId": 1,
"tabName": "Main",
"points": "10"
},
{
"uId": "3",
"tabId": 2,
"tabName": "Photography",
"points": "20"
}
]
how can I insert into specified array by inspecting its properties values? says I want to add a assoc object into uId = 3, how can I do that? or it's not possible technically?
This is also possible using array.map (Added to the ECMA-262 standard in the 5th edition):
array.map(function(i){
if(i.uId == 3) i['newprop'] = 'newValue';
});
Update: It could be an array
if(i.uId == 3) i['newprop'] = ['newvalue1', 'newvalue2'];
They look like JSON data , so json_decode() to an array , search for the UId value and then add the corresponding assoc value and after the end finally wrap them up using json_encode()
foreach($array as $k=>&$arr)
{
if($arr->{'uId'}==2)
{
$arr->{'somecol'}="Hey";
}
}
echo json_encode($array,JSON_PRETTY_PRINT);
OUTPUT :
[
{
"uId": "2",
"tabId": 1,
"tabName": "Main",
"points": "10",
"somecol": "Hey"
},
{
"uId": "3",
"tabId": 2,
"tabName": "Photography",
"points": "20"
}
]
$array =json_decode($json,true); , just run the code from the foreachvar array = [
{
"uId": "2",
"tabId": 1,
"tabName": "Main",
"points": "10"
},
{
"uId": "3",
"tabId": 2,
"tabName": "Photography",
"points": "20"
}
];
for ( var i = 0; i < array.length; i++ ) {
if ( array[i].uId == 3) {
array[i].someProp = "Hello";
break; // remove this line for multiple updates
}
}
Or you can make a function like this:
function getMatch(data, uid) {
for ( var i = 0; i < data.length; i++ ) {
if ( data[i].uId == 3) {
return data[i];
}
}
}
and use it like this:
getMatch(array, 3).someproperty = 4;
console.log(JSON.stringify(array)); after the for loop to see your updated arrayYou can use the map function, which executes a function on each element of an array
a.map(function(el) {
if (el.uId == 3) {
el.prop = "value";
}
});
Or you can use the filter function.
// Get the array of object which match the condition
var matches = a.filter(function(x) { return x.uId == 3 });
if (matches.length > 0) {
matches[0].prop = "value";
}
