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Check if a variable is a string in JavaScript
... is a String";
var stringObject = new String( "This is a String Object" );
alert(typeof booleanValue) // displays "boolean"
alert(typeof numericalValue) // displays "number"
alert(typeof stringValue) // displays "string"
alert(typeof stringObject) // displays "object"
Example from this webpage. (E...
Does a javascript if statement with multiple conditions test all of them?
...e cases the bitwise operators & and | can be used
var testOr = true | alert(""); //alert pops up
var testAnd = false & alert(""); //alert pops up
These should be used really carefully because bitwise operators are arithmetic operators that works on single bits of their operand and can't a...
How to read data From *.CSV file using javascript?
...[j]+":"+entries.shift());
}
lines.push(tarr);
}
// alert(lines);
}
The following code will work on a "true" CSV file with linebreaks between each set of records:
data.txt:
heading1,heading2,heading3,heading4,heading5
value1_1,value2_1,value3_1,value4_1,value5_1
value1_2,v...
Click event doesn't work on dynamically generated elements [duplicate]
...")
});
// With on():
$("h2").on("click", "p.test", function(){
alert($(this).text());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<h2></h2>
<button>generate new element</button>
The above work...
Dynamically load a JavaScript file
...e thing in one line :
$.getScript("my_lovely_script.js", function() {
alert("Script loaded and executed.");
// here you can use anything you defined in the loaded script
});
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improv...
How to initialize an array's length in JavaScript?
...}) gives you an array with length 5 and values 0,1,2,3,4.
Array(5).forEach(alert) does nothing, Array.apply(null, Array(5)).forEach(alert) gives you 5 alerts
ES6 gives us Array.from so now you can also use Array.from(Array(5)).forEach(alert)
If you want to initialize with a certain value, these are ...
Get difference between 2 dates in JavaScript? [duplicate]
...var b = moment('12/12/2010','M/D/YYYY');
var diffDays = b.diff(a, 'days');
alert(diffDays);
I used your original input values, but you didn't specify the format so I assumed the first value was July 11th. If it was intended to be November 7th, then adjust the format to D/M/YYYY instead.
...
How to tell if a browser is in “quirks” mode?
...afari, and IE, run this javascript in the address bar:
javascript:window.alert('You are in ' + (document.compatMode==='CSS1Compat'?'Standards':'Quirks') + ' mode.')
(note that you'll need to re-type the javascript: portion after pasting into your address bar, due to recent security changes)
...
How to test a confirm dialog with Cucumber?
...rom Capybara you would access it like this:
page.driver.browser.switch_to.alert.accept
or
page.driver.browser.switch_to.alert.dismiss
or
page.driver.browser.switch_to.alert.text
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imp...
What is this 'Lambda' everyone keeps speaking of?
... {
if (numbers[i] % 2 === 0) {
even.push(numbers[i]);
}
}
alert(even);
// Using the filter method
even = [1, 2, 3, 4].filter(function (number) {
return number % 2 === 0;
});
alert(even);
Code execution delay
In some environments, in which the concept of event is available, ...