I have a data structure like below...
[
{name: "coke", price:"10"},
{name: "sprit", price: "20"}
]
My question is how do I get the price based on its name? for example, how do get coke price?
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Do you know how to loop over an array?Ry-– Ry- ♦2016-08-03 08:29:50 +00:00Commented Aug 3, 2016 at 8:29
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You could use a Map, see for example stackoverflow.com/questions/4246980/… .Nicolas Henneaux– Nicolas Henneaux2016-08-03 08:31:03 +00:00Commented Aug 3, 2016 at 8:31
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5 Answers
can do it with the loop function
var dataArr = [
{name: "coke", price:"10"},
{name: "sprit", price: "20"}
];
for(var i=0;i<dataArr.length;i++){
if(dataArr[i].name == "coke"){
console.log(dataArr[i].price); // prints 10
}
}
Comments
Loop over the array using any looping method you like (such as for, Array.prototype.forEach, or Array.prototype.filter) and test the value of the name property of each object until you find the one you want. Then get the value property of it.
Comments
Just loop through the array and get the object property.
var arr = [{name: "coke", price:"10"},{name: "sprit", price: "20"}];
for (var i = 0, len = arr.length; i < len; i++) {
if(arr[i].name === "coke"){
console.log(arr[i].price);
}
}
Comments
var data = [{
name: "coke",
price: "10"
}, {
name: "sprit",
price: "20"
}];
function getValue(data, name) {
for (let i = 0; i < data.length; i++) {
if (data[i].name === name) {
return data[i].price;
}
}
}
var value = getValue(data, 'coke');
alert(value);
https://jsfiddle.net/ej5ofsxm/
You can loop through the array and get price based on name.
Comments
Please try:
(arr.find(function(item){ return item.name === 'coke'}) || {}).price;
or you can find all items named "coke":
arr.filter(function(item){
return item.name === 'coke';
})
1 Comment
Carson Liu
arr.map(function(item){ return item.price; });