AbstractRange.collapsed - Web APIs 编辑

The collapsed read-only property of the AbstractRange interface returns true if the range's start position and end position are the same.

Syntax

var isCollpased = range.collapsed

Value

A Boolean value which is true if the range is collapsed. A collapsed range is one in which the start and end positions are the same, resulting in a zero-character-long range..

Specifications

Browser compatibility

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