This is a process which is performed when we have to use data as an API or Model as an API.
This option is available in Admin module. 

Here we have two types
                   Internal : Where we can use it within our platform.
                                   Where authentication is provided within the platform. 
                                   Client id , secret key is provided by the platform 
                  External : When some external client requires to use it according his requirement where he will be having his own native connectors through which he will be able use it.
                                     Where authentication is done by the user’s side.

sdk.getWidget( 'compname').setCustomExport(['column1','label5']);

sdk.getWidget( 'img2').setCustomExport(['column1','label5']);

var comp = sdk.getWidget( 'datagrid5' );
comp.m_exporttopdfgrid.exportastable = true; 
comp.m_exporttopdfgrid.theme = "striped"; 
comp.m_exporttopdfgrid.orientation = "l"; 

We will get date in yyyy-mm-dd format 
Indexing starts from zero for month

var date = new Date();
var curr_month  = date.getMonth();
var currentYear = date.getFullYear();

function padTo2Digits(num) {return num.toString().padStart(2, '0');}
function cur_month(date) {
  return [
    date.getFullYear(),
    padTo2Digits(date.getMonth() + 1),
    padTo2Digits(date.getDate()),
  ].join('-');
}

if (curr_month==0)
{var pre_month1 = 11;
var currentYear1 = currentYear-1;}
else {var pre_month1 =curr_month-1 ;
var currentYear1 = currentYear;}

var premonth_start = cur_month(new Date(currentYear1, pre_month1, 1)) );
var premonth_end = cur_month(new Date(currentYear1, pre_month1 + 1, 0))  );

<span style = "color:#5adf14;font-size:15px;"> Title</span>
var a = sdk.getWidget( 'timeline4' );
a.m_enablehtmlformate.subtitle = true;
a.m_enablehtmlformate.title = true;
a.m_enablehtmlformate.xaxis = true;
a.m_enablehtmlformate.yaxis = true;
a.m_enablehtmlformate.secondaryaxis = true;

We will get date in yyyy-mm-dd format

var date = new Date();
var curr_month  = date.getMonth();
var currentYear = date.getFullYear();

function padTo2Digits(num) {return num.toString().padStart(2, '0');}
function cur_month(date) {
  return [
    date.getFullYear(),
    padTo2Digits(date.getMonth() + 1),
    padTo2Digits(date.getDate()),
  ].join('-');
}
var curmonth_start = cur_month(new Date(currentYear, curr_month, 1)) );
var curmonth_end = cur_month(new Date(currentYear, curr_month + 1, 0))  );

first chart - connection
sdk.updateGlobalVariable('label10',{'Value':changedItem.attributes.data[0].metric },false);

first chart - component
sdk.updateGlobalVariable('label10',{'Value':changedItem.attributes.drillComponent.m_repeaterfieldvalue },false);

 <style>input:focus {outline:none;}::placeholder {color: #6a6b70;}</style><input id="Target_filter_search01" autocomplete="off" placeholder="Enter the text that should be printed as placeholder here....." style = "width: 100%; height : 100%; padding :0px 0px 0px 10px; color : #6a6b70; border : 0px; border-radius: 4px; background : #f2f0f0;"/> <style> input:focus { outline:none; } </style> <script> //debugger; var inp = document.getElementById("Target_filter_search01"); inp.addEventListener("keyup", function(event) { if (event.keyCode === 13) { //alert('l'); var a = $('#Target_filter_search01').val(); </script>

          Using this code we can create a textbox with placeholder. 

var date = new Date();
var currentWeekDay = date.getDay();
var lessDays = currentWeekDay == 0 ? 6 : currentWeekDay-1;

var weekkStart = new Date(new Date(date).setDate(date.getDate()- lessDays));
var weekkEnd = new Date(new Date(wkStart).setDate(wkStart.getDate()+6));

This can be done using


sdk.updateGlobalVariable( 'ComponentID',
{'Key': 'Values'},Notify_true_OR_false );

          Here {'Key': 'Values'}àThis part performs the function of update GV
                   Notify_true_OR_false )àThis performs the function of notify GV

Here if we give true then it executes the script written in that particular component(notify true should be enabled only in components)

Note : We cannot use this code in connection of any component with notify as true.