Utilizing the Angular slice pipe within innerHTML: A comprehensive guide

Question

Utilizing the Angular slice pipe within innerHTML: A comprehensive guide

I have a whatsNewDetail.content string that includes HTML elements:

<span style="font-family: &quot;Open Sans&quot;, Arial, sans-serif; font-size: 14px; text-align: justify;">In nec convallis justo. Quisque egestas mollis nibh non hendrerit. Phasellus tempus sapien in ultricies aliquet. Maecenas nec risus viverra tortor rhoncus venenatis in sit amet enim. Integer id ipsum non leo finibus sagittis in eu velit. Curabitur sed dolor dui. Mauris aliquam magna a ipsum tincidunt tempor vitae sit amet ante. Maecenas pellentesque augue vitae quam faucibus, vel convallis dolor placerat. Pellentesque semper justo a turpis euismod, ac gravida enim suscipit.</span>

When I try to use the slice pipe, it doesn't show anything. I suspect that the HTML elements are affecting the slicing process.

 <span style="font-size: 13px" [innerHTML]="whatsNewDetail.content | slice:0:15+'...'></span>

What I am aiming for is to slice the text like this:

In nec convalli...

and not like this:

<span style="fo...

Is there a way to apply the slice pipe after the text has been rendered?

angular typescript

Answer 1

Answer №1

Here is the solution I came up with. I utilized a hidden element to store the innerHTML content and introduced a template reference variable called #whatsNew.

<p hidden [innerHTML]="whatsNewDetail.content" #whatsNew></p>

Next, I defined a function that retrieves the innerText of an element.

getInnerText(el) {
  return el.innerText;
}

Then, I displayed the element using the slice pipe to limit the characters.

<p class="article-content">{{ getInnerText(whatsNew).length > 150 ? (getInnerText(whatsNew) | slice:0:150) +'...' : getInnerText(whatsNew) }}</p>

Answer 2

Here is the solution I came up with. I utilized a hidden element to store the innerHTML content and introduced a template reference variable called #whatsNew.

<p hidden [innerHTML]="whatsNewDetail.content" #whatsNew></p>

Next, I defined a function that retrieves the innerText of an element.

getInnerText(el) {
  return el.innerText;
}

Then, I displayed the element using the slice pipe to limit the characters.

<p class="article-content">{{ getInnerText(whatsNew).length > 150 ? (getInnerText(whatsNew) | slice:0:150) +'...' : getInnerText(whatsNew) }}</p>

Answer 3

Answer №2

Here's a helpful suggestion:

To implement this technique in an HTML file, you can use the following code snippet:

<span style="font-size: 13px">
 <span style="font-family: &quot;Open Sans&quot;, Arial, sans-serif; font-size: 14px; text-align: justify;">{{whatsNewDetail.content.substring(0,15)}}...</span>
</span>

In the TypeScript file, define whatsNewDetail as follows:

whatsNewDetail= {content: `In nec convallis justo. Quisque egestas mollis nibh non hendrerit. Phasellus tempus sapien in ultricies aliquet. Maecenas nec risus viverra tortor rhoncus venenatis in sit amet enim. Integer id ipsum non leo finibus sagittis in eu velit. Curabitur sed dolor dui. Mauris aliquam magna a ipsum tincidunt tempor vitae sit amet ante. Maecenas pellentesque augue vitae quam faucibus, vel convallis dolor placerat. Pellentesque semper justo a turpis euismod, ac gravida enim suscipit.`}

This solution should effectively address your issue.

Note: If you need to expand the text by clicking on the ellipsis (...), utilize a separate span for the ellipsis and control its visibility using Angular's *ngIf directive based on the content stored in whatsNewDetail.content.

Answer 4

Here's a helpful suggestion:

To implement this technique in an HTML file, you can use the following code snippet:

<span style="font-size: 13px">
 <span style="font-family: &quot;Open Sans&quot;, Arial, sans-serif; font-size: 14px; text-align: justify;">{{whatsNewDetail.content.substring(0,15)}}...</span>
</span>

In the TypeScript file, define whatsNewDetail as follows:

whatsNewDetail= {content: `In nec convallis justo. Quisque egestas mollis nibh non hendrerit. Phasellus tempus sapien in ultricies aliquet. Maecenas nec risus viverra tortor rhoncus venenatis in sit amet enim. Integer id ipsum non leo finibus sagittis in eu velit. Curabitur sed dolor dui. Mauris aliquam magna a ipsum tincidunt tempor vitae sit amet ante. Maecenas pellentesque augue vitae quam faucibus, vel convallis dolor placerat. Pellentesque semper justo a turpis euismod, ac gravida enim suscipit.`}

This solution should effectively address your issue.

Note: If you need to expand the text by clicking on the ellipsis (...), utilize a separate span for the ellipsis and control its visibility using Angular's *ngIf directive based on the content stored in whatsNewDetail.content.

Utilizing the Angular slice pipe within innerHTML: A comprehensive guide

Answer №1

Answer №2

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