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copied!<p>Switch statements are very rarely necessary in Javascript. In general, you can just use objects like dictionaries/maps and do the lookup directly: <code>foo.bar</code> is equivalent to <code>foo['bar']</code>.</p> <p>Also, for "global" variables, <code>some_global_func()</code> is equivalent to <code>window.some_global_func()</code>, which can also be written as <code>var f = 'some_global_func'; window[f]()</code>: you don't <em>ever</em> need <code>eval</code> in order to select a variable or call a function dynamically based on its name. In general, when doing that, though, you should prefer to store the function in an object rather than at global scope (i.e. in the <code>window</code> object).</p> <p>So, assuming that <code>grid1_delete</code> and <code>grid2_delete</code> are fundamentally different and can't be combined into a generic function, you could do something like the following without changing your code much:</p> <pre><code>var grid_actions = { 'grid1': { 'delete': function() { /* ... */ }, 'duplicate': function() { /* ... */ } }, 'grid2': { 'delete': function() { /* ... */ }, 'add': function() { /* ... */ }, 'duplicate': function() { /* ... */ } } } function contextMenuClick(context, menuItem) { var action = menuItem.innerHtml; if (context in grid_actions) { if (action in grid_actions[context]) { grid_actions[context][action](); } else { console.log('undefined action in contextMenuClick/' + context + ': ' + action); } } else { console.log('undefined context in contextMenuClick: ' + context); } } </code></pre> <p>A better solution, though, is to refactor things to have have these functions be methods of objects for each context, like @<a href="https://stackoverflow.com/users/31641/le-dorfier">le dorfier</a> suggests.</p>

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