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Ajout, suppression et modification d'un tableau json par JS
2022-07-06 23:14:00 【~ Jiang】
Table des matières
Recherche d'enregistrements.SelonusernameRecherche d'enregistrements
Supprimer l'enregistrement.SelonusernameSupprimer l'enregistrement
Modifier l'enregistrement.SelonusernameModifierpassword
Recherche d'enregistrements.SelonusernameRecherche d'enregistrements
const users = [
{ username: "Zhang San", password: 333 },
{ username: "Li - si.", password: 444 },
{ username: "Wang Wu", password: 555 },
];
//Recherche d'enregistrements.SelonusernameRecherche d'enregistrements
let data = users.filter((item) => item.username == "Zhang San");
console.log("Selonusername Enregistrements trouvés :", data);
Supprimer l'enregistrement.SelonusernameSupprimer l'enregistrement
const users = [
{ username: "Zhang San", password: 333 },
{ username: "Li - si.", password: 444 },
{ username: "Wang Wu", password: 555 },
];
//Supprimer l'enregistrement.SelonusernameSupprimer l'enregistrement
let data = users.filter((item) => item.username == "Zhang San");
console.log("Selonusername Enregistrements trouvés :", data);
let index = users.indexOf(data[0]);
console.log("Indexindex:", index);
index !== -1 && users.splice(index, 1);
console.log(" Après suppression d'un enregistrement users:", users);
Modifier l'enregistrement.SelonusernameModifierpassword
const users = [
{ username: "Zhang San", password: 333 },
{ username: "Li - si.", password: 444 },
{ username: "Wang Wu", password: 555 },
];
//Modifier l'enregistrement.SelonusernameModifierpassword
let data = users.filter((item) => item.username == "Zhang San");
console.log("Selonusername Enregistrements trouvés :", data);
data[0].password = 3333;
console.log(" Après modification d'un enregistrement users:", users);
Nouveaux enregistrements.
const users = [
{ username: "Zhang San", password: 333 },
{ username: "Li - si.", password: 444 },
{ username: "Wang Wu", password: 555 },
];
//Nouveaux enregistrements.
users.push({ username: "Zhao Liu", password: 666 });
console.log(" Après l'ajout d'un enregistrement users:", users);
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