這可能是你在找什麼,發現這裏:how to change json key:value
<script>
var json = [{ "id": "5001", "type": "None" },
{ "id": "5002", "type": "Glazed" },
{ "id": "5005", "type": "Sugar" },
{ "id": "5003", "type": "Chocolate" },
{ "id": "5004", "type": "Maple" },
{ "id": "5009", "type": "Juice" }];
/**
* The function searches over the array by certain field value,
* and replaces occurences with the parameter provided.
*
* @param string field Name of the object field to compare
* @param string oldvalue Value to compare against
* @param string newvalue Value to replace mathes with
*/
function replaceByValue(field, oldvalue, newvalue) {
for(var k = 0; k < json.length; ++k) {
if(oldvalue == json[k][field]) {
json[k][field] = newvalue ;
}
}
return json;
}
/**
* Let's test
*/
console.log(json);
replaceByValue('id','5001','5010')
console.log(json);
replaceByValue('type','Chocolate','only water')
console.log(json);
</script>