Having trouble with element.style in TypeScript (Angular 5)?

I attempted to change the style of an element using JavaScript within my TypeScript code, but unfortunately it is not working as expected. Here is the approach I took:

const element = document.getElementsByClassName('current');
element.style.backgroundColor = "" + this.styles.style.mainIdentifyingColor;

However, I encountered the following error:

The property 'style' does not exist on HTMLCollectionOf.

I also experimented with using setAttribute instead, but faced the same issue.

Answer №1

Although this may not directly address your question, have you experimented with utilizing NgStyle? Check out the documentation here


HTML

<div [ngStyle]="{ 'background-color': myCustomColor }"> 

</div>

TS

CallThisFunction() {
  this.myCustomColor=this.styles.style.mainIdentifyingColor;
}

Answer №2

To apply styles to multiple elements in an array of HTMLElements found within the HTMLCollection, you will need to iterate through each element and set the style property individually.

Alternatively

If you only want to style the first (or sole) element with the class name current, you can achieve this by:

const targetElement = document.getElementsByClassName('current');
targetElement[0].style.backgroundColor = "" + this.styles.style.mainIdentifyingColor;

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