I need to add data at the beginning of an array in VueJs:
numbers: [
],
this.numbers.unshift({
number: 1
})
Is there a way to prepend instead of append?
I need to add data at the beginning of an array in VueJs:
numbers: [
],
this.numbers.unshift({
number: 1
})
Is there a way to prepend instead of append?
Push:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push
this.items.push({item: "apple"});
You can also pass multiple items to add them all:
this.items.push({item: "banana"}, {item: "orange"});
The return value is the new length of the array:
var fruits = ["apple"];
var newLength = fruits.push("banana", "orange");
//fruits = ["apple", "banana", "orange"]; newLength = 3;
Vue specifically targets certain Array methods for observation, such as
push, pop, shift, unshift, splice, sort, reverseyourArray.splice(0, 0, 'first item in Array');
Although unshift is a common solution, there is another approach you can take using the concat method:
this.data = [{value: 10}].concat(this.data);
Incorporating the modern method of adding elements to the beginning of an array is something worth mentioning:
this.items = [
{ item: 'first' },
...this.items
]
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