Convert the code in twig from PHP -

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i have tried convert templates plain php twig code , i'm not sure looking @ code how write following examples out in twig code. can point me in right direction?

my following php code.

<?php } if ($body_font != '' ) {  $fontpre = $body_font;  $font = str_replace("+", " ", $fontpre); ?> body {font-family:<?php echo $font ?>;} <?php } ?>

i have tried following in twig.

{% if body_font != '' %} {% set fontpre = 'body_font' %} {% set font = fontpre|replace("+", " ") %}  body {font-family:{{ font }}; } {% endif %}

but, doesn't work. can please help? do wrong here?

the replace filter different php function str_replace. accepts mapping keys strings should replaced values:

{% set font = fontpre|replace({"+": " "}) %}




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