Javascript 将两个变量相加？
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时间：2020-08-24 03:05:11 来源:igfitidea点击:
Adding two Variables together?
提问by ritch
Trying to add two integer variables together, however, I can't seem to figure it out as it just joins them as strings?
试图将两个整数变量加在一起，但是，我似乎无法弄清楚，因为它只是将它们作为字符串连接起来？
var age_child = 10;
var age_gap = 10
alert(age_child+age_gap);
Result: 1010, Want Result: 20
结果：1010，想要的结果：20
回答by Rene Pot
var age_child = parseInt(10);
var age_gap = parseInt(10);
alert(age_child+age_gap); // should now alert 20
回答by sushil bharwani
useparseInt(age_child) + parseInt(age_gap);
用parseInt(age_child) + parseInt(age_gap);
