I'm having trouble with my code that is supposed to push data to an array variable, but instead I'm getting a blank array. Can someone help me figure out what I'm doing wrong?
let users = []
// Here is where I'm looping through an ajax response
for(var i = 0; i < response.length; i++ ) {
users.push(response[i].user_name)
}
When I run console.log, this is the result I get:
console.log(users) // Array[]
Utilize the map function in JavaScript Array to process data, ensuring the response is in array format beforehand.
Verify the response is not undefined, then iterate through the response data.
//iterating through ajax response
let users = response && response.map(x => {
return x.user_name;
});
It appears that the value of the i variable is missing in the response.
var response=[{user_name:'abc'},{user_name:'def'}]
let users = [];
for(var i = 0; i < response.length; i++ ) {
users.push(response[i].user_name)
}
By using this code, the result should be populated in the users array.
A simple and efficient way to add a new value to an existing array is by utilizing array destructuring in ES6+. This method eliminates the need for the push() function and keeps the code clean and concise.
Check out the code snippet below to see just how easy it is to achieve this:
var numberArray = [];
for (let index = 0; index < 10; index++) {
numberArray = [...numberArray, index * 10]; // using array destructuring to add new element
}
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