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How can I test if a letter in a string is uppercase or lowercase using JavaScript?
...g josh
var character = '5';
if (character == character.toUpperCase()) {
alert ('upper case true');
}
if (character == character.toLowerCase()){
alert ('lower case true');
}
another way is to test it first if it is numeric, else test it if upper or lower case
example
var strings = 'this iS a ...
“TypeError: (Integer) is not JSON serializable” when serializing JSON in Python?
...ently i got the same error. After lot of surfing this solution helped me.
alerts = {'upper':[1425],'lower':[576],'level':[2],'datetime':['2012-08-08 15:30']}
def myconverter(obj):
if isinstance(obj, np.integer):
return int(obj)
elif isinstance(obj, np.floating):
...
jQuery equivalent of JavaScript's addEventListener method
I'm trying to find the jQuery equivalent of this JavaScript method call:
7 Answers
7
...
How to get the data-id attribute?
...ry's data object. ... Every attempt is made to convert the string to a JavaScript value (this includes booleans, numbers, objects, arrays, and null). A value is only converted to a number if doing so doesn't change the value's representation. For example, "1E02" and "100.000" are equivalent as numbe...
Make header and footer files to be included in multiple html pages
...e in index.html
<html>
<head>
<title></title>
<script
src="https://code.jquery.com/jquery-3.3.1.js"
integrity="sha256-2Kok7MbOyxpgUVvAk/HJ2jigOSYS2auK4Pfzbm7uH60="
crossorigin="anonymous">
</script>
<script>
$(function(){
$("#header").load("h...
JavaScript sleep/wait before continuing [duplicate]
I have a JavaScript code that I need to add a sleep/wait function to. The code I am running is already in a function, eg:
1...
How Many Seconds Between Two Dates?
...
Just subtract:
var a = new Date();
alert("Wait a few seconds, then click OK");
var b = new Date();
var difference = (b - a) / 1000;
alert("You waited: " + difference + " seconds");
...
How do I pass the this context to a function?
...allow you to set the context for a function.
var myfunc = function(){
alert(this.name);
};
var obj_a = {
name: "FOO"
};
var obj_b = {
name: "BAR!!"
};
Now you can call:
myfunc.call(obj_a);
Which would alert FOO. The other way around, passing obj_b would alert BAR!!. The differe...
How to get the HTML for a DOM element in javascript
...
If you want a lighter footprint, but a longer script, get the elements innerHTML and only create and clone the empty parent-
function getHTML(who,lines){
if(!who || !who.tagName) return '';
var txt, ax, str, el= document.createElement('div');
el.appendChild...
Calling dynamic function with dynamic number of parameters [duplicate]
...). The use of call on mainfunc would also work:-
function target(a) {
alert(a)
}
var o = {
suffix: " World",
target: function(s) { alert(s + this.suffix); }
};
mainfunc("target", "Hello");
mainfunc.call(o, "target", "Hello");
...