J'ai un tableau d'objet qui ressemble à, maintenant, j'ai un MAINTENANT, CLIQUEZ Cliquez sur une fonction TRGGERD qui assignera ce tableau d'objet à l'observable. P> observable code> qui est p> setAction(givenobject) {
//Here I am trying to check wheather the coming object is same as that of previous(which is the observable) if both are same then do not update or else update.
if(givenobject !== values)
this. values = givenobject
}
3 Réponses :
Voici mon objet comparer la fonction
p>
const compare = (obj1, obj2) =>
Array.isArray(obj1)
? Array.isArray(obj2) && obj1.length === obj2.length && obj1.every((item, index) => compare(item, obj2[index]))
: obj1 instanceof Date
? obj2 instanceof Date && obj1.getDate() === obj2.getDate()
: obj1 && typeof obj1 === 'object'
? obj2 && typeof obj2 === 'object' &&
Object.getOwnPropertyNames(obj1).length === Object.getOwnPropertyNames(obj2).length &&
Object.getOwnPropertyNames(obj1).every(prop => compare(obj1[prop], obj2[prop]))
: obj1 === obj2;
const obj1 = [{
a: "10",
b: "20"
}, {a: "30", b: "40"}, {a: "50", b: "60"}];
const obj2 = [{
a: "10",
b: "20"
}, {a: "30", b: "40"}, {a: "50", b: "60"}]
const obj3 = [{
a: "10"
}, {a: "30", b: "40"}];
console.log('obj1 equals obj2 is', compare(obj1, obj2));
console.log('obj1 equals obj3 is', compare(obj1, obj3));Vous pouvez essayer ce code, cela fonctionnera également avec des objets profonds.
const compareArrObjects = _.isEmpty(_.differenceWith(givenobject , values , _.isEqual))
setAction(givenobject) {
//Here I am trying to check wheather the coming object is same as that of previous(which is the observable) if both are same then do not update or else update.
if(compareArrObjects)
this. values = givenobject
}
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avec le lodash