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Serving gzipped CSS and JavaScript from Amazon CloudFront via S3

...yles.href = sr_css_file; head.appendChild(scriptStyles); //alert('adding css to header:'+sr_css_file); } }()); </script> gzipcheck.js.jgz is just sr_gzipEnabled = true; This tests to make sure the browser can handle the gzipped code and provide a backup if they can't. ...
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Get the first key name of a javascript object [duplicate]

... Try this: for (var firstKey in ahash) break; alert(firstKey); // 'one' share | improve this answer | follow | ...
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Getting JavaScript object key list

... key4: 'value4' }; var keys = []; for (var k in obj) keys.push(k); alert("total " + keys.length + " keys: " + keys); share | improve this answer | follow ...
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How to access component methods from “outside” in ReactJS?

...an :D class Parent extends Component { handleClick() { if (this._getAlert !== null) { this._getAlert() } } render() { return ( <div> <Child> {(getAlert, childScope) => ( <span> {!this._getAlert ? this._getAlert = getAlert...
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What is the difference between null and undefined in JavaScript?

...een declared but has not yet been assigned a value, such as: var TestVar; alert(TestVar); //shows undefined alert(typeof TestVar); //shows undefined null is an assignment value. It can be assigned to a variable as a representation of no value: var TestVar = null; alert(TestVar); //shows null ale...
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Using curl POST with variables defined in bash script functions

... The other answer didn't work for me as I was trying to invoke it in an alert from Zabbix. This one solves it perfectly and is more clean. – 0rkan Nov 22 '16 at 14:54 ...
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Deserializing a JSON into a JavaScript object

...on("return " + data))(); } // testing obj = parseJSON('{"name":"John"}'); alert(obj.name); This way you don't need any external library and it still works on old browsers. share | improve this an...
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JavaScript code to stop form submission

...idateMyForm() { if(check if your conditions are not satisfying) { alert("validation failed false"); returnToPreviousPage(); return false; } alert("validations passed"); return true; } </script> In case of Chrome 27.0.1453.116 m if above code does not work, please set ...
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How do I split a string into an array of characters? [duplicate]

...cter in the array as you would any other array. var s = "overpopulation"; alert(s[0]) // alerts o. UPDATE As is pointed out in the comments below, the above method for accessing a character in a string is part of ECMAScript 5 which certain browsers may not conform to. An alternative method you ...
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Unable to add window — token android.os.BinderProxy is not valid; is your activity running?

... one simple workaround is to catch the exception : try { alertDialog.show() } catch (WindowManager.BadTokenException e) { //use a log message } It's not elegant but sometimes easy when you have to manage async operations and you are not sure wether activity is up ...