- JavaScript OR (||) variable assignment explanation
The example you've given is making use of this property of JavaScript to perform an assignment It can be used anywhere where you need to get the first truthy or falsy value among a set of values This code below will assign the value "Hello" to b as it makes it easier to assign a default value, instead of doing if-else checks
- javascript - Assign variable in if condition statement, good practice . . .
Assignment in a conditional statement is valid in javascript, because your just asking "if assignment is valid, do something which possibly includes the result of the assignment" But indeed, assigning before the conditional is also valid, not too verbose, and more commonly used
- How to assign multiple variables at once in JavaScript?
13 While you cannot do var a, b = "one", "two";, and get them assigned to each variable in the respective order, you can do: var a, b; to initialize these variables as undefined You can also do var a, b = 'foo'; to assign b to 'foo', while initializing 'a' as undefined
- How does variable assignment in JavaScript differ between object and . . .
In JavaScript, assigning a variable and assigning a property are 2 different operations It's best to think of variables as pointers to objects, and when you assign directly to a variable, you are not modifying any objects, merely repointing your variable to a different object
- Javascript How to define multiple variables on a single line?
177 If I want to condense code, what's the proper JavaScript "strict" way to define multiple javascript variables on a single line?
- javascript - Value returned by the assignment - Stack Overflow
67 Why does the regular assignment statement (say, x = 5) return the value assigned (5 in this case), while the assignment combined with a variable declaration (var x = 5) returns undefined? I got the return values by executing these statements in the Chrome browser's Javascript console:
- javascript - Is declaring multiple variables in the same var statement . . .
Assignment in javascript works from right to left var var1 = var2 = var3 = 1; If the value of any of these variables is 1 after this statement, then logically it must have started from the right, otherwise the value or var1 and var2 would be undefined
- javascript - Declaring vs Initializing a variable? - Stack Overflow
Initialization: When you declare a variable it is automatically initialized, which means memory is allocated for the variable by the JavaScript engine Assignment: This is when a specific value is assigned to the variable
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