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    regexp.prototype.flags

    1.2.0 • Public • Published

    RegExp.prototype.flags Version Badge

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    An ES6 spec-compliant RegExp.prototype.flags shim. Invoke its "shim" method to shim RegExp.prototype.flags if it is unavailable. Note: RegExp#flags requires a true ES5 environment - specifically, one with ES5 getters.

    This package implements the es-shim API interface. It works in an ES5-supported environment and complies with the spec.

    Most common usage:

    var flags = require('regexp.prototype.flags');
     
    assert(flags(/a/) === '');
    assert(flags(new RegExp('a') === '');
    assert(flags(/a/mig) === 'gim');
    assert(flags(new RegExp('a', 'mig')) === 'gim');
     
    if (!RegExp.prototype.flags) {
        flags.shim();
    }
     
    assert(flags(/a/) === /a/.flags);
    assert(flags(new RegExp('a') === new RegExp('a').flags);
    assert(flags(/a/mig) === /a/mig.flags);
    assert(flags(new RegExp('a', 'mig')) === new RegExp('a', 'mig').flags);

    Tests

    Simply clone the repo, npm install, and run npm test