Answers for "javascript foreach array object"

5

javascript foreach object

const list = {
  key: "value",
  name: "lauren",
  email: "[email protected]",
  age: 30
};

// Object.keys returns an array of the keys
// for the object passed in as an argument.

Object.keys(list).forEach(val => {
  let key = val;
  let value = list[val];
  console.log(`${key} : ${value}`);
});

// Returns:
// "key : value"
// "name : lauren";
// "email : [email protected]"
// "age : 30"
Posted by: Guest on March-04-2020
6

For-each over an array in JavaScript

/** 1. Use forEach and related */
var a = ["a", "b", "c"];
a.forEach(function(entry) {
    console.log(entry);
});

/** 2. Use a simple for loop */
var index;
var a = ["a", "b", "c"];
for (index = 0; index < a.length; ++index) {
    console.log(a[index]);
}

/**3. Use for-in correctly*/
// `a` is a sparse array
var key;
var a = [];
a[0] = "a";
a[10] = "b";
a[10000] = "c";
for (key in a) {
    if (a.hasOwnProperty(key)  &&        // These checks are
        /^0$|^[1-9]d*$/.test(key) &&    // explained
        key <= 4294967294                // below
        ) {
        console.log(a[key]);
    }
}

/** 4. Use for-of (use an iterator implicitly) (ES2015+) */
const a = ["a", "b", "c"];
for (const val of a) {
    console.log(val);
}

/** 5. Use an iterator explicitly (ES2015+) */
const a = ["a", "b", "c"];
const it = a.values();
let entry;
while (!(entry = it.next()).done) {
    console.log(entry.value);
}
Posted by: Guest on November-27-2019
35

foreach javascript

let words = ['one', 'two', 'three', 'four'];
words.forEach((word) => {
  console.log(word);
});
// one
// two
// three
// four
Posted by: Guest on May-27-2020
1

javascript foreach in object

for (var key in validation_messages) {
    // skip loop if the property is from prototype
    if (!validation_messages.hasOwnProperty(key)) continue;

    var obj = validation_messages[key];
    for (var prop in obj) {
        // skip loop if the property is from prototype
        if (!obj.hasOwnProperty(prop)) continue;

        // your code
        alert(prop + " = " + obj[prop]);
    }
}
Posted by: Guest on July-16-2020
3

foreach js

// result.params.detail = {
// "status": true,
// "message": "",
// "params": {
//     "pay_credit_remain": 115,
//     "month_expiry": "15",
//     "detail": [
//         {
//             "credit": "70",
//             "create_date": "2020-10-16",
//             "expiry_date": "2022-01-16"
//         },
//         {
//             "credit": "45",
//             "create_date": "2020-10-17",
//             "expiry_date": "2022-01-17"
//         }
//     ]
// }
//}

                 
detail = "<ul>";
result.params.detail.forEach((val) => {
  detail = detail + sprintf(lang.pay_credit_detail, val.credit, val.expiry_date);
});
detail += "</ul>";

$('#pay_credit_remain').html(detail);
Posted by: Guest on October-14-2020

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