:Category:Pages with non-numeric formatnum arguments

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This category collects pages that use the formatnum parser function with a non-numeric or incorrectly formatted value, e.g. {{formatnum:foo}} or {{formatnum:12,345}}.

Ways to fix or work around this error inside template code:

• If formatnum is being applied to a string that includes both a number and words, change it to wrap just the number. Example: {{formatnum:{{{var}}} dollars}} → {{formatnum:{{{var}}}}} dollars
• Another way to work around invalid input is to remove commas from the input like this: {{formatnum:{{replace|{{{var}}}|,|}}}}. Note that input using commas as decimal separators, in contravention of MOS:DECIMAL, will cause formatnum to produce invalid values. To fix the problem, use a full stop (period) as a decimal separator.
• A limited way to work around invalid input in templates is to use {{tl|digits}}, e.g. {{formatnum:{{digits|{{{votes}}}}}}}. This works only for whole numbers and will produce incorrect results for input containing decimal points or other non-numeric characters.

Ways to fix this error in articles:

• When additional text or references exist in a template parameter that expects only numbers, find a way to move the additional text outside the template or into a different parameter. For example:
• Currency templates like {{tl|CAD}} or {{tl|US$}} take only numeric input. Use {{US$|123}}{{nbsp}}million instead of {{US$|123 million}}
• The {{para|population_total}} parameter in {{tl|Infobox settlement}} should have only a number in it. Move any references to {{para|population_footnotes}}, as in [https://en.wikipedia.org/w/index.php?title=%27Ajjur&type=revision&diff=980849486&oldid=980504731 this edit].

Other:

• When formatnum is given a negative number written with the proper U+2212 "minus sign" (instead of the commonly used hyphen-minus key that appears on most keyboards), e.g. {{formatnum:−9000000}}, it assigns this error category; see {{phab|T237467}}. A workaround for this incorrect usage was applied to {{tl|US Census population}}, which shows population declines as negative numbers. You should use hyphen-minus within formatnum to avoid this error category and it will output the proper minus sign (see {{phab|T10327}}).

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