Twig & Html concatenation

Question

I'm looking for a way to get some id like :

first_1 / first_2 / etc etc

But currently i'm doing wrong

{% set nb = 0 %}
{% for resultat in resultats %}
    {% if resultat.first == 1 %}
        {% set nb=nb+1 %}
        <tr id="first_"{{ nb }}>

This is giving id="first_" and an other param "1"=""

Thanks for your help

A little bit of research would have helped you : [how to concatenate in twig](https://stackoverflow.com/questions/7704253/how-to-concatenate-strings-in-twig) — t-n-y, Aug 09 '17 at 08:28

score 2 · Answer 1 · answered Aug 09 '17 at 08:37

2

You have:

{{ "first_#{loop.index0}" }}

you don't need to manually create the incrementer.

answered Aug 09 '17 at 08:37

Hitmands

score 1 · Accepted Answer · answered Aug 09 '17 at 08:32

1

You can concat string:

{% set nb = 0 %}

<tr id="first_{{ nb }}">

answered Aug 09 '17 at 08:32

JGrinon

score 0 · Answer 3 · answered Aug 09 '17 at 15:16

0

You can concat string in Twig with "~" (same as "." in php and "+" in javascript)

    <tr id="{{ 'first_' ~ nb }}">

answered Aug 09 '17 at 15:16

Mickaël Leger

3 Answers3