simple javascript regular expression in for loop

Question

This is driving me nuts, but I can't make this very simple regular expression work. I have a JSON object, and I am trying to sum all of the properties that start with "eehrs_" (the values for these properties are all integers). Just to debug it, I am trying to simply print out the property name to show that the loop is working. Here is the regular expression and loop I am using. Any help would be greatly appreciated:

for (i = 0; i < schoolJSON.features.length; i++) {
    for (property in schoolJSON.features[i].properties) {
        if (property == /(eehrs_\d+)|(eehrs_[p|k])/) { 
            console.log(property);
        }
    }
}

Also, I tried using a simple /^eehrs_/, but that did not work either.

Thanks, Jon

See here developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — elclanrs
– elclanrs, Commented Jul 7, 2014 at 6:30

MaxArt · Accepted Answer · 2014-07-07 06:34:34Z

2

You're doing it wrong:

if (/^eehrs_(?:\d+|[pk])/.test(property)) {
    ...

You don't have to test if a string is a regular expression, but rather you use the regex to test the string.

answered Jul 7, 2014 at 6:34

MaxArt

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