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MyWikiBiz, Author Your Legacy — Saturday September 20, 2025
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1,817 bytes added ,  23:51, 30 November 2006
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<noinclude>{{hh}}</noinclude>{&#123;<small>&#160;</small><code>{{{subst|}}}{{{1}}}</code>&#125;} {{{{{subst|}}}#ifeq: {{{2|+}}}|{{{2|-}}}|{{{2}}}|{{{s|gives}}}}} {{{{{subst|}}}{{{1}}}}}<noinclude>
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Examples&#58;
#{{Tlx|{{PAGENAME}}|CURRENTDAY|s&#61;is}} displays
#:{{{{PAGENAME}}|CURRENTDAY|s=is}}
#{{Tlx|{{PAGENAME}}|#expr:2*3}} displays
#:{{{{PAGENAME}}|#expr:2*3}}
#<nowiki>{{subst:evaldemo|subst=subst:|#expr:2*3}}</nowiki> gives:
#:{&#123;<small>&#160;</small><code>subst:#expr:2*3</code>&#125;} {{{s|gives}}} 6
#{{Tlx|{{PAGENAME}}|<nowiki>1=#expr:2+2=5</nowiki>}} displays
#:{{{{PAGENAME}}|1=#expr:2+2=5}}
#{{Tlx|{{PAGENAME}}|<nowiki>1=#expr:(2+2=4)</nowiki>|<nowiki>s==</nowiki>}} displays
#:{{{{PAGENAME}}|1=#expr:(2+2=4)|s==}}
#{{Tlx|{{PAGENAME}}|urlencode:!|<nowiki>s==</nowiki>}} displays
#:{{{{PAGENAME}}|urlencode:!|s==}}
#{{Tlx|{{PAGENAME}}|uc:abc}} gives
#:{{{{PAGENAME}}|uc:abc}}
#{&#123;subst:{{PAGENAME}}|uc:Upper Case|subst=subst:&#125;} substitutes
<!-- #:{{subst:evaldemo|uc:Upper Case|subst=subst:}} -->
#:{&#123;<small>&#160;</small><code>subst:uc:Upper Case</code>&#125;} {{{s|gives}}} UPPER CASE
#:See [[m:Help:Substitution|Help:Substitution]] for several caveats wrt <tt>subst=subst:</tt>.

As always the expression (first parameter) cannot directly contain "'''|'''", "'''='''", plus other special cases related to square brackets / curly braces. In the case of this template "not directly" means "never" except from "'''='''" as shown above.

For simple '''nested''' expressions use {{Lts|evaldemo/2}}:

#{{Tlx|evaldemo/2|#expr:4*|#expr:not 0|<nowiki> &gt;3 | s=yields</nowiki>}} displays
#:{{evaldemo/2|#expr: 4*|#expr:not 0| >3 | s=yields}}
#{{Tlx|evaldemo/2|urlencode:|DIRMARK}} displays
#:{{evaldemo/2|urlencode:|DIRMARK}}

[[Category:Handbook templates|{{PAGENAME}}]]
</noinclude>
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