form = JSON.parse(JSON.stringify(this.mobilityDistanceForm.getRawValue()));
By tralaladidou, 2019-07-15 20:41:51
'use strict'

// exports //

module.exports = Math.sqrt
By Igor, 2021-09-01 21:28:26
const setFormFlag(state){
    state.formFlag ? state.formFlag = false : state.formFlag = true;
}
By Apeiron, 2018-07-27 20:43:23
function add(input1,input2) {
	var number1 = input1.toString();
	var number2 = input2.toString();
	var numbers1 = new Array();
	var numbers2 = new Array();
	var size1 = 0;
	var size2 = 0;
	while(size1 < number1.length) {
		var SizeAndNumberToAddToNumbers1Array = 0;
		var Number1FromFunctionAddLength = number1.length-size1-1;
		SizeAndNumberToAddToNumbers1Array = number1.charAt(size1);
		while(Number1FromFunctionAddLength > 0){
			SizeAndNumberToAddToNumbers1Array = SizeAndNumberToAddToNumbers1Array + "0";
			Number1FromFunctionAddLength = Number1FromFunctionAddLength-1;
		}
		numbers1.push(SizeAndNumberToAddToNumbers1Array);
		size1 = size1 + 1;
	}
	while(size2 < number2.length) {
		var SizeAndNumberToAddToNumbers1Array2 = 0;
		var Number1FromFunctionAddLength2 = number2.length-size2-1;
		SizeAndNumberToAddToNumbers1Array2 = number2.charAt(size2);
		while(Number1FromFunctionAddLength2 > 0){
			SizeAndNumberToAddToNumbers1Array2 = SizeAndNumberToAddToNumbers1Array2 + "0";
			Number1FromFunctionAddLength2 = Number1FromFunctionAddLength2-1;
		}
		numbers2.push(SizeAndNumberToAddToNumbers1Array2);
		size2 = size2 + 1;
	}
	var result1 = 0;
	var saize1 = 0;
	while(saize1 < numbers1.length){
		var topush1 = numbers1[saize1];
		result1=result1+parseInt(topush1);
		saize1 = saize1 + 1;
	}
	var result2 = 0;
	var saize2 = 0;
	while(saize2 < numbers2.length){
		var topush2 = numbers2[saize2];
		result2=result2+parseInt(topush2);
		saize2 = saize2 + 1;
	}
	return result1+result2;
}

advanced and optimized add function better than a + b

By Rzaba Kiddo, 2021-11-27 21:25:24
let arr = []
if(arr[record.id]) {
    arr[record.id] = false
} else {
    arr[record.id] = false
}
this.setState({a: arr})
arr = []
By Anonymous, 2021-12-27 06:55:59
if(
  (!_.isEmpty($(switcher).val()) && value_isnt == ":empty") ||
  ((value_isnt) && !$(switcher).is(value_isnt) && value_isnt != ':empty') ||
  (value_is && $(switcher).is(value_is) && value_is != ':empty') ||
  (value_is == ':empty' && _.isEmpty($(switcher).val())) ||
  (value && _switcherValue == value) ||
  (valueIn && .anyMatchInArray(valueIn.split(','), .flatten([_switcherValue]))) ||
  (valueOut && !.anyMatchInArray(valueOut.split(','), .flatten([_switcherValue])))
)
By Alex, 2017-06-08 15:58:10
function downScaleCanvas(a, b) {
    var c = Math.ceil,
        d = Math.floor;
    if (!(1 > b) || !(0 < b)) throw "scale must be a positive number <1 ";
    var e = b * b,
        f = a.width,
        g = a.height,
        h = d(f * b),
        i = d(g * b),
        j = 0,
        k = 0,
        l = 0,
        m = 0,
        n = 0,
        o = 0,
        p = 0,
        q = 0,
        r = 0,
        s = 0,
        t = 0,
        u = 0,
        v = 0,
        x = 0,
        y = 0,
        z = !1,
        A = !1,
        B = a.getContext("2d").getImageData(0, 0, f, g).data,
        C = new Float32Array(3 * h * i),
        D = 0,
        E = 0,
        F = 0;
    for (k = 0; k < g; k++)
        for (n = k * b, r = 0 | n, o = 3 * r * h, A = r != (0 | n + b), A && (x = r + 1 - n, y = n + b - r - 1), j = 0; j < f; j++, l += 4) m = j * b, q = 0 | m, p = o + 3 * q, z = q != (0 | m + b), z && (u = q + 1 - m, v = m + b - q - 1), D = B[l], E = B[l + 1], F = B[l + 2], z || A ? z && !A ? (s = u * b, C[p] += D * s, C[p + 1] += E * s, C[p + 2] += F * s, t = v * b, C[p + 3] += D * t, C[p + 4] += E * t, C[p + 5] += F * t) : A && !z ? (s = x * b, C[p] += D * s, C[p + 1] += E * s, C[p + 2] += F * s, t = y * b, C[p + 3 * h] += D * t, C[p + 3 * h + 1] += E * t, C[p + 3 * h + 2] += F * t) : (s = u * x, C[p] += D * s, C[p + 1] += E * s, C[p + 2] += F * s, t = v * x, C[p + 3] += D * t, C[p + 4] += E * t, C[p + 5] += F * t, t = u * y, C[p + 3 * h] += D * t, C[p + 3 * h + 1] += E * t, C[p + 3 * h + 2] += F * t, t = v * y, C[p + 3 * h + 3] += D * t, C[p + 3 * h + 4] += E * t, C[p + 3 * h + 5] += F * t) : (C[p] += D * e, C[p + 1] += E * e, C[p + 2] += F * e);
    var G = document.createElement("canvas");
    G.width = h, G.height = i;
    var H = G.getContext("2d"),
        I = H.getImageData(0, 0, h, i),
        J = I.data,
        K = 0;
    for (l = 0, p = 0; K < h * i; l += 3, p += 4, K++) J[p] = c(C[l]), J[p + 1] = c(C[l + 1]), J[p + 2] = c(C[l + 2]), J[p + 3] = 255;
    return H.putImageData(I, 0, 0), G
}

dohhhhhh !!

By fotogena.co sonickseven, 2019-10-13 00:10:25
> var x = 3;
> '5' + x - x
50
> '5' - x + x
5 // Because fuck math

JS is simply. Oh, wait...

By mademan, 2015-11-18 13:50:39
const errorHandler = () => {
  throw new Error();
};
By Anonymous, 2018-10-08 19:35:38
  $(".alarmBell").on("click", () => {

    let icon = $(".alarm-bell__icon")
    icon.attr('data', icon.attr('data') == 'images/icon/alarm-bell.svg' ? 'images/icon/alarm-bell-filled-new.svg' : 'images/icon/alarm-bell.svg');

    // $(".alarm-bell__icon").attr('data', function (index, data) {
    //   if (data == 'images/icon/alarm-bell-filled-new.svg') {
    //     return 'images/icon/alarm-bell.svg';
    //   } else if (data == 'images/icon/alarm-bell.svg') {
    //     return 'images/icon/alarm-bell-filled-new.svg';
    //   } else {
    //     return 'images/icon/alarm-bell.svg';
    //   }
    // });

  });

...after yet another icons change request

By Desperate Dev..., 2020-01-21 17:28:18
// Method put on each input component to unregister
  // itself from the form
  detachFromForm: function detachFromForm(component) {
    var componentPos = this.inputs.indexOf(component);

    if (componentPos !== -1) {
      this.inputs = this.inputs.slice(0, componentPos).concat(this.inputs.slice(componentPos + 1));
    }

    this.validateForm();
  },

oh boy

By Anonymous, 2017-12-21 10:48:00
const handleBoolean = value => {
        switch (value) {
            case "true":
                return true;
            case true:
                return "true";
            case "false":
                return false;
            case false:
                return "false"
            default:
                return null;
        }
    }
By Anonymous, 2021-09-29 11:53:22
function formatUpToANumberOfZeroesAfterFloatingPoint(number, numberOfZeroes, floatingPointSymbol) {
    numberOfZeroes = (numberOfZeroes === undefined || numberOfZeroes < 0) ? 2 : numberOfZeroes;
    floatingPointSymbol = floatingPointSymbol === undefined ? '.' : floatingPointSymbol;
    let numberSplitByFloatingPoint = number.toString().split(floatingPointSymbol);
    if (numberSplitByFloatingPoint.length !== 2) 
        return `${number}${floatingPointSymbol}${'0'.repeat(+numberOfZeroes)}`;
    
    let numberAfterFloatingPoint = numberSplitByFloatingPoint[1].toString();
    let formattedNumber = `${numberSplitByFloatingPoint[0]}`;
    let numberAfterFloatingPointLength = numberAfterFloatingPoint.toString().length;
    if (+numberOfZeroes > +numberAfterFloatingPointLength) 
        return `${formattedNumber}${floatingPointSymbol}${numberAfterFloatingPoint}${'0'.repeat(+numberOfZeroes - numberAfterFloatingPointLength)}`;
    
    let countOfNumbersAfterFloatingPoint = numberAfterFloatingPointLength;
    for (var i = numberAfterFloatingPointLength - 1; i >= 0; i--) {
        if (+(numberAfterFloatingPoint[i]) !== 0 || +countOfNumbersAfterFloatingPoint === +numberOfZeroes) {
            formattedNumber += `${floatingPointSymbol}${numberAfterFloatingPoint.substring(0, countOfNumbersAfterFloatingPoint)}`;
            break;
        }
        
        countOfNumbersAfterFloatingPoint--;
    }

    return formattedNumber;
}

Well, a junior dev here. A cute female QA came to me with a request - "the field for the price already has precision up to 4 decimal places, but we don't like the 4 ugly zeroes, so if the number ends in zeroes, let it have only 2" - she said in the most innocent-like tone ever known to mankind. How easy I mumbled and accepted the task. As she was leaving she added - "oo almost forgot, we also would like it if all the data fields for the price that are shown in the tables also are formatted that way". As I was watching her better side, while she was getting reunited with her QA tribe, I got shivers down the spine. I had a bad feeling about that one, but I wasn't sure why yet. Suddenly as I was getting up to get a cup of coffe, it dawned on me - "this poor excuse for a project is using jqGrid for displaying the data". To wrap things up - I got a quadruple espresso with a shot of Jacky, developers best friend in a time of need, and came up with this piece of art. Enjoy :)

By Kristopher Alexander, 2019-04-25 15:49:53
let foo = {} // object no. 1
let bar = {} // object no. 2

foo > bar // return false
foo < bar // return false, so maybe foo equals bar?
foo == bar // oh well, return false
// but
foo >= bar // return true, 'cause !(foo < bar) == true

return value is expected, but JS is funny

By Anonymous, 2021-03-12 21:08:32
var query = $("#search-query");
query.click(function() {
  if (query.val() == 'szukaj...') {
     query.val('');
  }
});
By Kadet, 2016-02-14 14:54:32