Javascript

function delay(callback, ms) {
    var timer = 0;
    return function() {
        var context = this, args = arguments;
        clearTimeout(timer);
        timer = setTimeout(function () {
            callback.apply(context, args);
        }, ms || 0);
    };
}


// Example usage:

$('#input').keyup(delay(function (e) {
  console.log('Time elapsed!', this.value);
}, 500));

You've accidentally set "Pause on Exceptions" to all/uncaught exceptions.

Go to the "Sources" tab.
At the bottom toolbar, toggle the button that looks like the pause symbol surrounded by a circle (4th button from the left),
until the color of the circle turns black to turn it off.

var nbDiffCaract = myString.split('').filter(function(el, index, arr) {
    return index == arr.indexOf(el);
}).length;

To select all elements that have classes x, y, and z

.x.y.z

To select all elements that have classes x, y, or z

.x, .y, .z

To select all elements that have class x but not classes y or z

.x:not(.y):not(.z)

To select all elements that aren’t DIV elements

:not(div)

To select all DIV elements that don’t have class x

div:not(.x)

To select all DIV elements that don’t have class x but do have class y

div:not(.x).y

To select all elements that are not DIVs and not of class x

:not(div):not(.x)

To select all y elements that have an ancestor x element

.x .y

To selects all y elements that don’t have a parent x

:not(.x) > .y

Find all x elements that do contain another element of type y

Array.from(document.querySelectorAll(“.x”)).filter(item => !!item.querySelector(“.y”));

Find all x elements that don’t contain another element of type y (the only difference is the not [!])

Array.from(document.querySelectorAll(“.x”)).filter(item => !item.querySelector(“.y”));

c is undefined

• manque <thead> et/ou <tbody>
• mauvais nombre de <td> et/ou <th>