select something with custom data attribute css

selecting something by its custom data attribute and value in css

using strlen to check the length of a string and do something about it

in the following code i use the php function strlen to check the length of a string and then add an if statement to check if the string is longer or shorter than the required length. 

right align something in its element

easily align a block or inline block item to the right in its outer element

matches the url and does something if it matches a certain string

center something with css not using flex

This is how you can center something in another element if you dont want to use the flex method.  You will need the relative position on the outer element, and the absolute on the center one unl..

check if something is an array

this function will check if something is an array

add something to the start of an array with unshift

unshift is the opposite of push where push adds to the end of an array unshift will add to the start of the array.

remove something from the end of an array with pop

pop is the opposite of push and will remove the last item in an array, it also returns the value so you can assign it to a variable

add something to the end of an array with push

you can easily add to the end of a javascript array with the .push function.

do something later with settimeout or loop with setinterval

setTimeout This one will run a certain time after the document loads. So if i want to execute something 5 seconds (or so) after the page loads i would do this. You will need to check your console..

using regex with replace to replace all instances of something in a string

so you have a string and you want to replace a recurring character, use this to do it: String Example: var string = "a-string-with-dashes.txt"; var string = "a-string-with-dashes.txt"; string..