Front End Web Developer Interviews

Front End Web Developer Interview Questions

"During an interview for a front end web developer position, be prepared to be heavily tested on your technical knowledge of HTML, CSS, and JavaScript and their available tools, as well as you general programming knowledge. To be an outstanding candidate, a strong portfolio of previous front end work and a bachelor's degree in computer science or equivalent work experience will be expected. "

794 front end web developer interview questions shared by candidates

1. video call - implement sum(2)(3)(4) , sum(2,3,4) ------------------------------------------------ - var myObject = { foo: "bar", func: function() { var self = this; console.log("outer func: this.foo = " + this.foo); console.log("outer func: self.foo = " + self.foo); (function() { console.log("inner func: this.foo = " + this.foo); console.log("inner func: self.foo = " + self.foo); }()); } }; myObject.func(); ----------------------------------------------------- -What will the code below output? Explain your answer. console.log(0.1 + 0.2); console.log(0.1 + 0.2 == 0.3); 2. DS Algo round: - given a dictonary of words, we need to write a function that performs search on it. - Implment binary search in sorted array. follow up if the array is rotated - Distribute candies problem from leetcode. - Question on 2D Array 3. UI techh round: Outputs of the following questions: - var arr=[1,2,3,4,5] console.log(i); for(var i=0; I<arr.length; I++){ setTimeout[()=>{ console.log(i); }, 100-20*I); } console.log(I—); setTimeout[()=>{ console.log(—i); }); ------------------------------------------------- - (function(){ var a = b = 3; })(); console.log("a defined? " + (typeof a !== 'undefined')); console.log("b defined? " + (typeof b !== 'undefined')); ------------------------------------------------------------------ -var x = 21; var girl = function () { console.log(x); var x = 20; }; girl (); -------------------------------------------- - difference between var and let. - event loop 4.System Design: -implement Pipeline chaining -Implement subscription on DOM -Implement two way data Binding. -Angular concepts.
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Front End Web Developer

Interviewed at Disney+ Hotstar

3.4
Jun 21, 2019

1. video call - implement sum(2)(3)(4) , sum(2,3,4) ------------------------------------------------ - var myObject = { foo: "bar", func: function() { var self = this; console.log("outer func: this.foo = " + this.foo); console.log("outer func: self.foo = " + self.foo); (function() { console.log("inner func: this.foo = " + this.foo); console.log("inner func: self.foo = " + self.foo); }()); } }; myObject.func(); ----------------------------------------------------- -What will the code below output? Explain your answer. console.log(0.1 + 0.2); console.log(0.1 + 0.2 == 0.3); 2. DS Algo round: - given a dictonary of words, we need to write a function that performs search on it. - Implment binary search in sorted array. follow up if the array is rotated - Distribute candies problem from leetcode. - Question on 2D Array 3. UI techh round: Outputs of the following questions: - var arr=[1,2,3,4,5] console.log(i); for(var i=0; I<arr.length; I++){ setTimeout[()=>{ console.log(i); }, 100-20*I); } console.log(I—); setTimeout[()=>{ console.log(—i); }); ------------------------------------------------- - (function(){ var a = b = 3; })(); console.log("a defined? " + (typeof a !== 'undefined')); console.log("b defined? " + (typeof b !== 'undefined')); ------------------------------------------------------------------ -var x = 21; var girl = function () { console.log(x); var x = 20; }; girl (); -------------------------------------------- - difference between var and let. - event loop 4.System Design: -implement Pipeline chaining -Implement subscription on DOM -Implement two way data Binding. -Angular concepts.

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