SessionStorage.getitem not working when loading page
Question
I am having an issue trying to use storagesession. I have gotten it to work, but as soon as I insert some ifthen logic, it breaks. Below is the working code. The bottom code is when I update the window.onload function that makes it break. Does anybody know why its breaking and how I can fix this? I am using only html/javascript and no server is being used. Thanks so much!
<!DOCTYPE html>
<!-- saved from url=(0014)about:internet -->
<html lang="en">
<html>
<head>
<title>Test</title>
</head>
<body>
<div id="container">
<ul class="vertical-nav">
<li><a href="">Fruit</a>
<ul class="sub-menu">
<li><a href="test.html" onclick="ChangeToApple()">Apple</a></li>
<li><a href="test.html" onclick="ChangeToGrape()">Grape</a></li>
</ul>
</li>
</ul>
<div id="ShowDept">
</div>
</div>
</body>
<script>
window.onload = function() {
var x = sessionStorage.getItem("Dept");
document.getElementById("ShowDept").innerHTML = x;
}
function ChangeToApple() {
sessionStorage.Dept = "Apple";
}
function ChangeToGrape() {
sessionStorage.Dept = "Grape";
}
</script>
window.onload = function() {
var x = sessionStorage.getItem("Dept");
if (x = "Apple") {
} else if (x = "Grape") {
}
document.getElementById("ShowDept").innerHTML = x;
}
2 answers
solution1
0 ACCPTED 2020-05-29 15:26:20
var x = sessionStorage.getItem("Dept");
if (x = "Apple") {
} else if (x = "Grape") {
}
document.getElementById("ShowDept").innerHTML = x;
x = "Apple" means "Assign the string 'Apple' to the variable x . It does not check if x equals "Apple" ; use x === "Apple" for that. Because you're doing an assignment in your if statement, you're going to always see Apple in your HTML.
solution2
0 2020-05-29 15:31:41
instead of
sessionStorage.Dept = "Apple";
try
sessionStorage.setItem("Dept", "Grape");
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