Gestionnaire de fichiers - Editer - /opt/cpanel/ea-ruby24/root/usr/share/ri/system/Kernel/trace_var-i.ri
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U:RDoc::AnyMethod[iI"trace_var:ETI"Kernel#trace_var;TF: publico:RDoc::Markup::Document: @parts[ o: RDoc::Markup::Paragraph; [ I"HControls tracing of assignments to global variables. The parameter ;FI"D+symbol+ identifies the variable (as either a string name or a ;FI";symbol identifier). _cmd_ (which may be a string or a ;FI"?+Proc+ object) or block is executed whenever the variable ;FI":is assigned. The block or +Proc+ object receives the ;FI"3variable's new value as a parameter. Also see ;FI"&<code>Kernel::untrace_var</code>.;Fo: RDoc::Markup::BlankLine o:RDoc::Markup::Verbatim; [I"8trace_var :$_, proc {|v| puts "$_ is now '#{v}'" } ;TI"$_ = "hello" ;TI"$_ = ' there' ;T: @format0o; ; [I"<em>produces:</em>;F@o; ; [I"$_ is now 'hello' ;TI"$_ is now ' there';T; 0: @fileI" eval.c;T:0@omit_headings_from_table_of_contents_below0I"[trace_var(symbol, cmd ) -> nil trace_var(symbol) {|val| block } -> nil ;F0[ I"(p1, p2 = v2);T@!FI" Kernel;TcRDoc::NormalModule00
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