Tips for storing arrays in AngularJS with JavaScript

Question

Tips for storing arrays in AngularJS with JavaScript

I am new to using JavaScript. I have a function that stores objects in an array to an Angular model. Here is an example:

function getSpec(){
    debugger
    var i;
    for(i=0;i<main.specifications.length;i++){
        main.newProduct.Specification= ("{\""+main.specifications[i].key+"\":\""+main.specifications[i].value+"\"}");

    }
}

main.newProduct.Specification represents a model, and I aim to store the key-value pairs based on the array length. I want to store them in the database like this: {"Ram":"1GB","Color":"BLACK"}

What steps should I take?

javascript angularjs model

Answer 1

Answer №1

Revise the getSpec() function in the following way:

function getSpec(){
  debugger
  var idx;
  main.newProduct.Specification = main.newProduct.Specification || {}; // This line is optional and serves as a fallback

  for(idx = 0; idx < main.specifications.length; idx++) {
    main.newProduct.Specification[main.specifications[idx].key] = main.specifications[idx].value;
  }
}

The code above initializes Main.newProduct.Specification with an empty object if it has not been initialized yet and then adds all the properties to it.

Update:

The previous code snippet can be simplified as follows:

function getSpec() {
  main.newProduct.Specification = main.specifications.reduce(function(obj, item) {
    obj[item.key] = item.value;
    return obj; 
  }, {});
}

Answer 2

Revise the getSpec() function in the following way:

function getSpec(){
  debugger
  var idx;
  main.newProduct.Specification = main.newProduct.Specification || {}; // This line is optional and serves as a fallback

  for(idx = 0; idx < main.specifications.length; idx++) {
    main.newProduct.Specification[main.specifications[idx].key] = main.specifications[idx].value;
  }
}

The code above initializes Main.newProduct.Specification with an empty object if it has not been initialized yet and then adds all the properties to it.

Update:

The previous code snippet can be simplified as follows:

function getSpec() {
  main.newProduct.Specification = main.specifications.reduce(function(obj, item) {
    obj[item.key] = item.value;
    return obj; 
  }, {});
}

Answer 3

Answer №2

When an object is identified as main.newProduct.Specification, you have the ability to create a key/value pair by utilizing the code snippet:

main.newProduct.Specification[main.specifications[i].key] = main.specifications[i].value;

function retrieveSpecifications(){
        debugger
        var i;
        for(i=0;i<main.specifications.length;i++){
            var temp = {};
            temp[main.specifications[i].key]=main.specifications[i].value;                  
            main.newProduct.Specification.push(temp);
        }
    }

Answer 4

When an object is identified as main.newProduct.Specification, you have the ability to create a key/value pair by utilizing the code snippet:

main.newProduct.Specification[main.specifications[i].key] = main.specifications[i].value;

function retrieveSpecifications(){
        debugger
        var i;
        for(i=0;i<main.specifications.length;i++){
            var temp = {};
            temp[main.specifications[i].key]=main.specifications[i].value;                  
            main.newProduct.Specification.push(temp);
        }
    }

Answer 5

Answer №3

Implement this ES6 for...of loop solution:

const mainData = {
  "details": [
    { "title":"Name", "content":"John Doe" },
    { "title":"Age", "content":30 }
  ]
};

mainData.info = {
"details": {}
}
for (let item of mainData.details) {
  mainData.info.details[item.title] = item.content;
}

console.log(mainData.info.details);

Answer 6

Implement this ES6 for...of loop solution:

const mainData = {
  "details": [
    { "title":"Name", "content":"John Doe" },
    { "title":"Age", "content":30 }
  ]
};

mainData.info = {
"details": {}
}
for (let item of mainData.details) {
  mainData.info.details[item.title] = item.content;
}

console.log(mainData.info.details);

Tips for storing arrays in AngularJS with JavaScript

Answer №1

Answer №2

Answer №3

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