I have array of objects :
array = [
{name: 'name'},
{name: 'name'},
{name: 'name'},
{name: 'name'},
]
I want to add key: '123' to each of them so it would be :
array = [
{name: 'name', key: '123'},
{name: 'name', key: '123'},
{name: 'name', key: '123'},
{name: 'name', key: '123'},
]
What I've tryed :
checked = false;
this.editObj.forEach(item => item.push(this.checked))
ERROR : item.push is not a function.
But it isn't working. How to do it in the right way ?
const arr = [
{name: 'name'},
{name: 'name'},
{name: 'name'},
{name: 'name'},
]
const arr2 = arr.map(x => ({...x , key: '123'}));
var with ES6 ... (spread operator) is uncanny. Please use constYou can try with creating custom dictionary
array = [
{name: 'name'},
{name: 'name'},
{name: 'name'},
{name: 'name'},
]
var dict = []; // create an empty dictionary
for (i = 0; i < array.length; i++) {
dict.push({
key: "123",
value: array[i].name
});
}
console.log(dict);you should do :
this.editObj.forEach(item => item["key"]= "123");
console.log(this.editObj);
Uncaught SyntaxError: missing ) after argument listYour code is not working because you use .push() on object, not on array.
Try this:
this.editObj.forEach(item => item["key"] = this.checked);
this.editObj.forEach(item => (item["key"] = this.checked;));In everything except IE11
Creating a new array
const array = [{
name: 'name',
},
{
name: 'name',
},
{
name: 'name',
},
{
name: 'name',
},
];
console.log(array.map(x => ({
...x,
key: '123',
})));Updating existing array
const array = [{
name: 'name',
},
{
name: 'name',
},
{
name: 'name',
},
{
name: 'name',
},
];
array.forEach((x) => {
x.key = '123';
});
console.log(array);In IE11
var array = [{
name: 'name',
},
{
name: 'name',
},
{
name: 'name',
},
{
name: 'name',
},
];
for (var i = 0; i < array.length; i += 1) {
array[i].key = '123';
}
console.log(array);
item["key"] = "123"