Following code will help in fetching the value of a query string parameter.
function GetQueryStringParameter(parameter) {
var search = location.search.substring(1);
var queryStringParameters = JSON.parse('{"' + decodeURI(search).replace(/"/g, '\\"').replace(/&/g, '","').replace(/=/g, '":"') + '"}')
return queryStringParameters[parameter];
}Usage:
If URL is http://server/page.html?id=1
Then usage would be GetQueryStringParameters(“id”) which would return 1
The following code snippet show how to remove duplicate list items in the JSON result of a SharePoint REST call using JavaScript.
Function Definition:
function RemoveDuplicateItems(items, propertyName) {
var result = [];
if (items.length > 0) {
$.each(items, function (index, item) {
if ($.inArray(item[propertyName], result) == -1) {
result.push(item);
}
});
}
return result;
}Function Usage:
In the below code, assumption is that, the REST call returns data.d.results and the column for which duplicate items need to be removed is Title
var items = data.d.results; items = RemoveDuplicateItems(items, 'Title');
Following is a code snippet which show how to pass multiple parameters in JavaScript’s SetTimeout() function.
setTimeout(function () {
CustomFunction(param1, param2, param3, param4, param5);
}, 1000);Following is the code which can be used to load JavaScript in sequence.
This code for example loads the reputation.js from SharePoint’s layouts folder & jQuery from site assets.
(function () {
ExecuteOrDelayUntilScriptLoaded(function () {
//sp.runtime.js has been loaded
ExecuteOrDelayUntilScriptLoaded(function () {
//sp.js has been loaded
SP.SOD.registerSod('reputation.js', SP.Utilities.Utility.getLayoutsPageUrl('reputation.js'));
SP.SOD.registerSod('jquery-3.2.1', '../SiteAssets/Scripts/jquery-3.2.1.min.js');
SP.SOD.loadMultiple(['reputation.js', 'jquery-3.2.1'], function () {
//reputation.js & jquery-3.2.1.min.js have been loaded.
var context = SP.ClientContext.get_current();
var web = context.get_web();
//Check if jQuery has been loaded
if (typeof jQuery != 'undefined') {
console.log("Jquery is loaded");
}
else {
console.log("Jquery is not loaded!");
}
});
}, "sp.js");
}, "sp.runtime.js");
})();