我想使用 https://raw.github.com/currencybot/open-exchange-rates/master/latest.json 提供的货币数据
作为初始测试,我创建了它的简化版本作为内联对象:
var obj = [
{
"disclaimer": "This data is collected from various providers and provided free of charge for informational purposes only, with no guarantee whatsoever of accuracy, validity, availability, or fitness for any purpose; use at your own risk. Other than that, have fun! More info: http://openexchangerates.org/terms/",
"license": "Data collected from various providers with public-facing APIs; copyright may apply; not for resale; no warranties given. Full license info: http://openexchangerates.org/license/",
"timestamp": 1339036116,
"base": "USD",
"rates": {
"EUR": 0.795767,
"GBP": 0.645895,
"JPY": 79.324997,
"USD": 1
}
}];
我想做的就是以某种方式查询/grep/过滤 json 对象,例如,以“EUR”为条件,并让它返回一个名为“rate”的变量,值为“0.795767”结果。
我查看了 JQuery grep 和过滤器函数,但我无法弄清楚如何仅隔离对象的“费率”部分,然后获得我想要的费率。
最佳答案
var obj = [
{
"disclaimer": "This data is collected from various providers and provided free of charge for informational purposes only, with no guarantee whatsoever of accuracy, validity, availability, or fitness for any purpose; use at your own risk. Other than that, have fun! More info: http://openexchangerates.org/terms/",
"license": "Data collected from various providers with public-facing APIs; copyright may apply; not for resale; no warranties given. Full license info: http://openexchangerates.org/license/",
"timestamp": 1339036116,
"base": "USD",
"rates": {
"EUR": 0.795767,
"GBP": 0.645895,
"JPY": 79.324997,
"USD": 1
}
}];
obj[0].rates.EUR; // output: 0.795767
或
obj[0].rates['EUR']; output: //0.795767
如果您想将利率隔离在另一个变量中并使用该变量,请尝试以下操作:
var rates = obj[0].rates;
现在,
rates.EUR;
rates.GBP;
等等。
关于javascript - 从 jQuery 或 JS 中的 json 对象中提取数据,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10926965/