Number of items to show in Javascript

Question

I'm using Content Search Web Part on SP 2013, I'm trying to get the value for Number of items to show option in Javascript from the ctx object. I have tried ctx.ListData.ResultTables[0].RowCount but seems like this value is for the count on the current page only, not the configured in the 'Number of items to show' option within web part configuration.

Number of items to show value in UI

In addition, do you know where can I find more information on how to debug the ctx object or the properties or methods it uses. Any help would be appreciated. Thanks in advance.

Answer 1

We can use JSOM to achieve it. The following code for your reference.

<script type="text/javascript"> 
ExecuteOrDelayUntilScriptLoaded(retrieveWPProperties, "sp.js");
function retrieveWPProperties(){
    var pageurl=_spPageContextInfo.serverRequestPath; //current page
    var currentCtx = new SP.ClientContext.get_current();
    var pageFile = currentCtx.get_web().getFileByServerRelativeUrl(pageurl);
    var webPartManager = pageFile.getLimitedWebPartManager(SP.WebParts.PersonalizationScope.shared);
    var webPartDefs = webPartManager.get_webParts();
    currentCtx.load(webPartDefs, 'Include(WebPart.Properties)');
    currentCtx.executeQueryAsync(
    function () {
        if (webPartDefs.get_count()) {
            for (var i = 0; i < webPartDefs.get_count() ; i++) {
                var webPartDef = webPartDefs.getItemAtIndex(i);
                var webPart = webPartDef.get_webPart();
                var properties = webPart.get_properties();              
                //console.log(JSON.stringify(properties.get_fieldValues())); //print all properties
                if(properties.get_fieldValues().Title=="Content Search"){
                    var resultsPerPage=properties.get_fieldValues().ResultsPerPage;
                    alert(resultsPerPage);
                }
             }
        }
        else {
            console.log("No web parts found.");
        }
    },
    function (sender, args) {
        console.log(args.get_message());
    });
}
</script>