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This is a simplified version of what I am trying to accomplish, but I want to pass a variable outside the scope of the function. I am declaring the variable outside the function but can't get it.
HTML:
<p>5</p>
<p>6</p>
<p>7</p>
JS:
$(document).ready(function () {
var gsd = "";
$("p").each(function () {
if ($(this).text() === "5") {
var gsd = $(this).text();
alert(gsd); // this works
}
})
alert("get var outside func" + gsd); //does not work
});
591
It will throw an error if you try to access a variable which is not in the local or global scope.
No, You can't access let variables outside the block, if you really want to access, declare it outside, which is common scope.
If the variable is declared outside the loop, then it has the global scope as it can be used through-out the function and inside of the loop too. If the variable is declared inside the loop, then the scope is only valid inside the loop and if used outside the loop will give an error.
let is block-scoped. var is function scoped. let does not allow to redeclare variables. var allows to redeclare variables.
Variable Scope in VBA for MS Access. This replaces the old use of Global as a variable declaration. If the module concerned is a Form module, the variable is restricted to the code region of the form in which it is declared. You cannot declare a public variable within a procedure. This will give an error.
When a variable is declared within a module but outside of any procedure then it is available thoughout the module. For Form modules the scope is limited to the code region of the form. For standard modules the limit of scope will depend on the type of declaration. If you Dim a variable in a module it will default to Private.
There are mainly two types of variable scopes: Now let’s understand each of the scope at a greater detail: Variables defined within a function or block are said to be local to those functions. Anything between ‘ {‘ and ‘}’ is said to inside a block.
For Form modules the scope is limited to the code region of the form. For standard modules the limit of scope will depend on the type of declaration. If you Dim a variable in a module it will default to Private.
You redeclare gsd as a new variable inside your function. Remove var in front of gsd inside the function to address the gsd in the outer scope.
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