React: How to occur an alert modal only when browser back
I have tried to occur an aler <Modal />
only when browser back. But currently, default alert shows and everytime when I leave from this website an alert occurs. How can I fix this?
constructor(props) {
super(props);
this.onUnload = this.onUnload.bind(this);
}
onUnload(event) {
console.log("alert");
event.returnValue = "alert";
}
componentDidMount() {
window.addEventListener("beforeunload", this.onUnload);
}
componentWillUnmount() {
window.removeEventListener("beforeunload", this.onUnload);
}
javascript reactjs
add a comment |
I have tried to occur an aler <Modal />
only when browser back. But currently, default alert shows and everytime when I leave from this website an alert occurs. How can I fix this?
constructor(props) {
super(props);
this.onUnload = this.onUnload.bind(this);
}
onUnload(event) {
console.log("alert");
event.returnValue = "alert";
}
componentDidMount() {
window.addEventListener("beforeunload", this.onUnload);
}
componentWillUnmount() {
window.removeEventListener("beforeunload", this.onUnload);
}
javascript reactjs
Possible duplicate of Dialog box runs for 1 sec and disappears?
– Just code
Nov 15 '18 at 5:20
add a comment |
I have tried to occur an aler <Modal />
only when browser back. But currently, default alert shows and everytime when I leave from this website an alert occurs. How can I fix this?
constructor(props) {
super(props);
this.onUnload = this.onUnload.bind(this);
}
onUnload(event) {
console.log("alert");
event.returnValue = "alert";
}
componentDidMount() {
window.addEventListener("beforeunload", this.onUnload);
}
componentWillUnmount() {
window.removeEventListener("beforeunload", this.onUnload);
}
javascript reactjs
I have tried to occur an aler <Modal />
only when browser back. But currently, default alert shows and everytime when I leave from this website an alert occurs. How can I fix this?
constructor(props) {
super(props);
this.onUnload = this.onUnload.bind(this);
}
onUnload(event) {
console.log("alert");
event.returnValue = "alert";
}
componentDidMount() {
window.addEventListener("beforeunload", this.onUnload);
}
componentWillUnmount() {
window.removeEventListener("beforeunload", this.onUnload);
}
javascript reactjs
javascript reactjs
asked Nov 15 '18 at 5:14
Shun YamadaShun Yamada
359
359
Possible duplicate of Dialog box runs for 1 sec and disappears?
– Just code
Nov 15 '18 at 5:20
add a comment |
Possible duplicate of Dialog box runs for 1 sec and disappears?
– Just code
Nov 15 '18 at 5:20
Possible duplicate of Dialog box runs for 1 sec and disappears?
– Just code
Nov 15 '18 at 5:20
Possible duplicate of Dialog box runs for 1 sec and disappears?
– Just code
Nov 15 '18 at 5:20
add a comment |
1 Answer
1
active
oldest
votes
I don't use React but that would work with the code below.
history.pushState(null, null);
window.addEventListener('popstate', function(e) {
alert('BF')
});
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I don't use React but that would work with the code below.
history.pushState(null, null);
window.addEventListener('popstate', function(e) {
alert('BF')
});
add a comment |
I don't use React but that would work with the code below.
history.pushState(null, null);
window.addEventListener('popstate', function(e) {
alert('BF')
});
add a comment |
I don't use React but that would work with the code below.
history.pushState(null, null);
window.addEventListener('popstate', function(e) {
alert('BF')
});
I don't use React but that would work with the code below.
history.pushState(null, null);
window.addEventListener('popstate', function(e) {
alert('BF')
});
answered Dec 19 '18 at 3:00
Shun YamadaShun Yamada
359
359
add a comment |
add a comment |
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Possible duplicate of Dialog box runs for 1 sec and disappears?
– Just code
Nov 15 '18 at 5:20