Text Overflow Truncation and Ellipsis

Text overflow truncation and ellipsis are common business scenarios, mainly divided into single-line text overflow truncation and multi-line text overflow truncation. The truncation solution for single-line text is relatively simple, while multi-line truncation is relatively complex.

Single-line Overflow Truncation

Single-line text overflow truncation can be achieved directly using CSS, which has no compatibility issues. The ellipsis is only displayed when the text overflows, otherwise it is not displayed. The position of the ellipsis is just right. However, this solution can only be used for single-line text overflow truncation.

<section>
    <div class="t1">Very long text that is very long</div>
    <div class="t1">Not very long text</div>
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<style type="text/css">
    .t1{
        white-space: nowrap; /* Prevent text from wrapping to the next line */
        overflow: hidden; /* Truncate the text if it exceeds the specified width */
        text-overflow: ellipsis; /* Display ellipsis when the text overflows */
    }
</style>

Multi-line Overflow Truncation

Line-based CSS Solution

Multi-line text overflow truncation can be achieved using CSS with line-based calculation. The ellipsis is only displayed when the text overflows, otherwise it is not displayed. The position of the ellipsis is just right. However, the compatibility is average. The line-clamp property is only supported by browsers with the WebKit engine, and it is more suitable for mobile pages because mobile browsers are mostly based on the WebKit engine.

<section>
    <div class="t2">Not very long text</div>
    <div class="t2">Very long text that is very long</div>
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<style type="text/css">
    .t2{
        -webkit-line-clamp: 3; /* Limit the number of lines of text displayed in a block element Compatibility: https://caniuse.com/#search=line-clamp */
        display: -webkit-box; /* Display as a flex container */
        box-orient: vertical; /* Set the arrangement of the flex container's child elements */
        overflow: hidden; /* Truncate the text if it exceeds the specified width */
        text-overflow: ellipsis; /* Display ellipsis when the text overflows */
    }
</style>

Line-based JS Solution

Multi-line text overflow truncation can be achieved using JS with line-based calculation. It has no compatibility issues. The ellipsis is only displayed when the text overflows, otherwise it is not displayed. However, it requires JS implementation, which goes against the principle of separating display and behavior. When the text contains a mix of Chinese and English, the position of the ellipsis may be slightly off.

<section>
    <div class="t3">Short text</div>
    <div class="t3">Very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very 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I have a 2001 4.0L XJ with 4.10 gears and 33" tires. I get 15-16mpg in the city and 20-21mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15-16mpg in the city and 18-19mpg on the highway. I have a 4.0L with 3.73 gears and 33" tires. I get 15

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