In JavaScript, create 7 variables with the same value but different names
In JavaScript, how do I make a for loop that would make 7 variables with the same value,but different names. So, I want to take a string and subtract the last two letters. I do this with
var stringExample = prompt("Blah blah");
var stem = stringExample.substring(0, stringExample.length-2);
And then make 6 more of the stem variables with the names of stem0 through stem6. Right now my code is:
for (var i = 0; i < 7; i++) {
eval('var stem' + i + '= toDecline.substring(0, toDecline.length - 2');
};
var stem = stringExample.substring(0, stringExample.length-2);
var stem0 = stem1 = stem2 = stem3 = stem4 = stem5 = stem6 = stem;
Note some implications with regard to scope when doing this. Essentially, the subsequent variables are initialized in the global namespace. Remedy that by defining them in advance.
That said, I suspect that your application logic could be simplified to avoid needing 7 identical variables.
你可以像这样拥有它：
var stem = stringExample.substring(0, stringExample.length-2);
var stemr=[];
for (var i = 0; i < 7; i++) {
stemr[i]=stem;
}
只需使用一个数组。
var stemArray = [];
var value = stringExample.substring(0, stringExample.length-2);
for (var i = 0; i < 7; i++) {
stemArray[i] = value;
};