Javascript: node.onclick call a function not working
Solution 1:
The correct place to bind this is here:
node.onclick = function() {
const requestData = `newsid=${node.id}`;
// some code //
this._PreLoad(true);
}.bind(this); // bind here!
Alternatively, use an arrow function which preserves this as whatever it was at the time of the function declaration:
node.onclick = () => {
const requestData = `newsid=${node.id}`;
// some code //
this._PreLoad(true);
}