css3 - LESS CSS parametric mixin default null value does not work -

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i have lesscss mixin box-shadow :

.box-shadow(@x, @y, @blur, @color, @addit: ''){     -webkit-box-shadow: @x @y @blur @color @addit;     -moz-box-shadow: @x @y @blur @color @addit;     box-shadow: @x @y @blur @color @addit; }

as seen, there parameter @addit set '' default.

it's work fine when give @addit value : .box-shadow(0, 0, 2px, #1361aa, inset), why if parameter @addit not filled, doesn't work? , how fix it?

help, advance.

escape empty string default

you need set default value ~'' escaped string.

less

.box-shadow(@x, @y, @blur, @color, @addit: ~''){     -webkit-box-shadow: @x @y @blur @color @addit;     -moz-box-shadow: @x @y @blur @color @addit;     box-shadow: @x @y @blur @color @addit; }  .test{    .box-shadow(0, 0, 2px, #1361aa) }

css

.test {   -webkit-box-shadow: 0 0 2px #1361aa ;   -moz-box-shadow: 0 0 2px #1361aa ;   box-shadow: 0 0 2px #1361aa ; }

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