显示包含对象和图标的数组

Question

I have an array of objects

 arr = [
{'name': value},
{'name': value},
{'name': value},
...............
]

Value is svg icon . I want to display this in the template with *ngFor

<div> arr.name </div>
<svg> arr.value </svg>

Are there ways to do this?

Answer 1

Try this :

arr = [{
    'name': 'exp1',
    'value': 'exp1'
}, {
    'name': 'exp2',
    'value': 'exp2'
}]

and in HTML :

<ng-container *ngFor="let item of arr">
   <div> {{ item.name }}</div>
   <svg> {{ item.value }} </svg>
</ng-container>

Answer 2

assuming 'name' is just a placeholder and the key is actually a variable value, you could do something like:

in controller, map it into something usable:

 arr = [
{'name': value},
{'name': value},
{'name': value},
...............
]
mapped = this.arr.map(i => {
  let name = Object.keys(i)[0];
  let value = i[name];
  return {name, value};
});

then in template do exactly what you have:

<ng-container *ngFor="let item of mapped">
  <div>{{item.name}}</div>
  <svg>{{item.value}}</svg>
</ng-container>

Answer 3

Create function to getKey() and getValue() in object in .ts

getKey(object)
{
  let keys= Object.keys(object);
  return keys[0];

}
getValue(object)
{
  let keys= Object.keys(object);
  return object[keys[0]];
}

In HTML

<ng-container *ngFor="let item of arr | keyvalue">
  <div>{{getKey(item.value)}}</div>
  <svg>{{getValue(item.value)}}</svg>
</ng-container>