test.html - mozsearch

Enable keyboard shortcuts

<!DOCTYPE html>

<meta charset="utf-8">

<script>

    /* eslint-disable no-unused-expressions */

    "use strict";

    console.log(null);

    console.error("%ccolored message", "background:green; color:white");

    const obj = {

        testSymbol: Symbol("sym"),

        testobj: {},

        testnumber: 1,

        testArray: [1, {}, 2, 555],

        testUndf: undefined,

        testNull: null,

        testFunc() {},

        testString: 'string',

        prop1: 'prop1',

        prop2: 'prop2'

};

    obj.c = obj;

    obj.prop3 = 'prop3';

    obj.prop4 = 'prop4';

    console.log(obj);

    const arr = [

        'string',

        {test: 'obj'},

        null,

90,

        undefined,

        function() {},

        [1, {}, 2, 555]

];

    arr.push(arr);

    console.log(arr);

    document.access.non.existent.property.to.trigger.error;

</script>

<style>

  body {background: rgb(0, 128, 0);}

</style>