jade Attributes Boolean Attributes
Example
Boolean attributes are mirrored by Jade, and accept bools, aka true or false. When no value is specified true is assumed.
Code:
input(type='checkbox', checked)
input(type='checkbox', checked=true)
input(type='checkbox', checked=false)
input(type='checkbox', checked=true.toString())
Result:
<input type="checkbox" checked="checked"/>
<input type="checkbox" checked="checked"/>
<input type="checkbox"/>
<input type="checkbox" checked="true"/>
If the doctype is html jade knows not to mirror the attribute and uses the terse style (understood by all browsers).
Code:
doctype html
input(type='checkbox', checked)
input(type='checkbox', checked=true)
input(type='checkbox', checked=false)
input(type='checkbox', checked=true && 'checked')
Result:
<!DOCTYPE html>
<input type="checkbox" checked>
<input type="checkbox" checked>
<input type="checkbox">
<input type="checkbox" checked="checked">
