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Conditional check in JavaScript not working

I am trying below code but it’s not working as expected. I wanted to check if the cell Value has India or UnitedStatedofAmerica or Germany or Switzerland then go inside and if it’s undefined, null or blank, or it doesn’t contain the text location then go to else and set the value to ROW, But…

Show hidden button on mouseover/ mouseout with vanilla JS

I want the button near the homer class to be invisible. It should be visible only on mouseover, what’s wrong with my code? By default, it is visible, and when I mouseover for the first time it inserts visibility: visible. When I mouse-out for the first time, it disappears. But nothing happens when I mou…

i am failing to access a func in my child component

the are about three more components between this one and the one i want it to function in, so i keep on passing it down as a prop till i get to the component i want. it is supposed to run when the user clicks a button but i get an error that this.props.route.params.ToggleFavorites is not a function please hel…