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<html><head><title>ejOpen -- GoAhead Embedded JavaScript</title><link rel="stylesheet" href="../../../style/doc.css" type="text/css"></head><body><table width="550"> <tr><td> <TABLE border=0 width=100% cellspacing=0 cellpadding=0 CLASS="apiTitle"><TR> <td class="titleLeft" align=left width="33%"><B>ejOpen</B></TD><td class="titleCenter" align=center width="33%"><b>GoAhead JavaScript API</b></TD><td class="titleRight" align=right width="33%"><B>GoAhead EMF</B></TD></TR></TABLE><HR><h2>Synopsis</h2><p>Open a JavaScript interpreter session.</p><h2>Prototype</h2><pre>#include "ej.h"int <b>ejOpen</b>(sym_fd_t variables, sym_fd_t functions);</pre><h2>Parameters</h2><p><table width=90%> <TR> <TD width=40>variables <TD> Symbol table for variables <TR> <TD width=40>functions <TD>Symbol table for functions</TR></table><h2>Description</h2><P>To use JavaScript, you must first open an interpreter session with <i>ejOpen</i>. JavaScript interpreters usually have their ownvariable and global function name space. To share variable or functionname space, pass a symbol table into <b>ejOpen</b> in the <i>variable</i>or <i>function</i> parameters. If either of these parameters are setto NULL, the symbol table will be created automatically.</P><p>Use <b>ejClose</b> to close the interpreter when finished. <h2>Return Value</h2><p>Handle for the JavaScript interpreter.</p><h2>Example</h2><pre>if (ejOpen(NULL, NULL)< 0) { /* Cant open interpreter */ return -1;}</pre><h2>See Also</h2><p><A href="../../../over/ejs.htm">JavaScript</A>, <A href="../../../over/asp.htm">Active Server Pages</A><A href="ejClose.htm">ejClose</A><A href="ejEval.htm">ejEval</A></p></td></tr></table></body></html>⌨️ 快捷键说明
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