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Javascript Code snippets

filter all values from multidimensional array based on key

Tags: filter from array, array filter, filter, array filter map

check if URL contain hash

Tags: link contain hash, link contain tag, link href hash, link tag contain

Syntethic events

Tags: event, onclick, oncontextmenu, event handling

Get values from array based on key

Tags: get values from array, get val, array

get random from array

Tags: javascript rand, javascript random

Sorting array based on elements inside of it

Tags: ibm bpm, sorting array, sorting, array

Auto-expand textarea based on text amount in it

Tags: autoexpand, javascript, textarea

Is defined

Tags: javascript, js, ifdefined

Filter by multiple conditions

Tags: javascript, comapre, compare multiple

compare two dates

Tags: javascript,compare two dates

Assign time to date

Tags: js, javascript, time, set time

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                      const data = Object.keys(response).map((key) => (response[key].data))

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                       (window.location.hash) ? {} : {}

List of all on events

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                      onClick 
onContextMenu 
onDoubleClick 
onDrag 
onDragEnd 
onDragEnter 
onDragExit
onDragLeave 
onDragOver 
onDragStart 
onDrop 
onMouseDown 
onMouseEnter 
onMouseLeave
onMouseMove 
onMouseOut 
onMouseOver 
onMouseUp

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                       var newArr =  arr.map(function(obj) {
        return obj.dateVal;
});

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                      var arr = [false, true];

//method 1
Array.prototype.sample = function(){
  return this[Math.floor(Math.random()*this.length)];
}

 var isTrue = arr.sample();

//method2
var rand = arr[(Math.random() * arr.length) | 0];

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                      addCocs.sort(function (a, b) { return a.docName- b.docName});

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                      this.setTextAreaAutosize = function() {
    var txtArea = 'textarea-textarea-IDField:Text_Area1';
    var s_height = document.getElementById(txtArea).scrollHeight + 20;

    if (!!s_height) {
        document.getElementById(txtArea).setAttribute('style', 'height:' + s_height + 'px');
    }
}

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                      function isNotDefined(value) {
  return typeof value === "undefined";
}

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                       var resp = needToFilter.filter(function (oldg) { 
  return oldg.isSend === true && oldg.phone === tw.local.smsRequestList[i].CountryCode && oldg.no === tw.local.smsRequestList[i].PhoneNo 
});

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                      var start = new Date('10/3/2015');
var end = new Date('11/2/2015');
var days = (end - start) / 1000 / 60 / 60 / 24;

// actually its 30 ; but due to daylight savings will show 31.0xxx
// which you need to offset as below
days = days - (end.getTimezoneOffset() - start.getTimezoneOffset()) / (60 * 24);
console.log(days);

/*
-------------------- output ----------------------------
30.041666666666668
30
*/

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                      var date1woH = new Date(loanNumbersSorted[i].disbursementDate).setHours(0, 0, 0, 0);
var date2woH = new Date(loanNumbersSorted[i - 1].disbursementDate).setHours(0, 0, 0, 0);