With statement in JavaScript
JavaScript 'with statement' is a simplified way to access object properties as variables.
Take for instance;
const dog = "puppy"
const mascots = {
'tux': "tuxedo",
'cow': 'cow'
}
with(mascots) {
console.log(tux)
// tuxedo
console.log(cow)
// cow
console.log(dog)
// puppy
}
properties of mascots are converted to variables accessible within the with block 'dog' is not part of mascots and as a fallback, dog global is returned.
At the time of writing this post with statement is discouraged.
It's not allowed in 'safe mode'
With the above sample you can do the same thing using destructureing operator
const {cow, dog, tux} = mascots
console.log(tux)
// tuxedo
console.log(cow)
// cow
console.log(dog)
// puppy
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