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Template:Is number

177 bytes added, 12:20, 4 August 2019
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{{#ifeq:{{#expr:{{{1}}}+{{{1}}}-{{{1}}}}}|{{{1}}}|1|}}<noinclude>
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<pre>{{is number|some input}}</pre>
 
Returns 1 if given a number, otherwise an empty string.
</noinclude>