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alternative to typeof in js

Creepy Caribou answered on September 24, 2022 Popularity 3/10 Helpfulness 1/10

answer alternative to typeof in js

related alternative to typeof in js

alternative to typeof in js

Comment

function typeCheck(value) {
  const return_value = Object.prototype.toString.call(value);
  // we can also use regex to do this...
  const type = return_value.substring(
           return_value.indexOf(" ") + 1, 
           return_value.indexOf("]"));

  return type.toLowerCase();
}

typeCheck([]); // 'array'
typeCheck(new Date()); // 'date'
typeCheck(new String('freeCodeCamp')); // 'string'
typeCheck(new Boolean(true)); // 'boolean'
typeCheck(null); // 'null'

Popularity 3/10 Helpfulness 1/10 Language javascript

Source: www.freecodecamp.org

Tags: javascript typechecking typeof

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Contributed on Sep 24 2022

Creepy Caribou

0 Answers Avg Quality 2/10

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alternative to typeof in js

Comment

function typeCheck(value) {
  const return_value = Object.prototype.toString.call(value);
  // we can also use regex to do this...
  const type = return_value.substring(
           return_value.indexOf(" ") + 1, 
           return_value.indexOf("]"));

  return type.toLowerCase();
}

Popularity 2/10 Helpfulness 3/10 Language javascript

Source: www.freecodecamp.org

Tags: typeof javascript

Link to this answer
Share Copy Link

Contributed on Sep 24 2022

Creepy Caribou

0 Answers Avg Quality 2/10

alternative to typeof in js

Comment

function typeCheck(value) {
  const return_value = Object.prototype.toString.call(value);
  // we can also use regex to do this...
  const type = return_value.substring(
           return_value.indexOf(" ") + 1, 
           return_value.indexOf("]"));

  return type.toLowerCase();
}

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: www.freecodecamp.org

Tags: javascript typeof

Link to this answer
Share Copy Link

Contributed on Sep 24 2022

Creepy Caribou

0 Answers Avg Quality 2/10

alternative to typeof in js

Comment

function typeCheck(value) {
  const return_value = Object.prototype.toString.call(value);
  // we can also use regex to do this...
  const type = return_value.substring(
           return_value.indexOf(" ") + 1, 
           return_value.indexOf("]"));

  return type.toLowerCase();
}

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: www.freecodecamp.org

Tags: typeof javascript

Link to this answer
Share Copy Link

Contributed on Sep 24 2022

Creepy Caribou

0 Answers Avg Quality 2/10

alternative to typeof in js

Comment

function typeCheck(value) {
  const return_value = Object.prototype.toString.call(value);
  // we can also use regex to do this...
  const type = return_value.substring(
           return_value.indexOf(" ") + 1, 
           return_value.indexOf("]"));

  return type.toLowerCase();
}

typeCheck([]); // 'array'
typeCheck(new Date()); // 'date'
typeCheck(new String('freeCodeCamp')); // 'string'
typeCheck(new Boolean(true)); // 'boolean'
typeCheck(null); // 'null'

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: www.freecodecamp.org

Tags: typeof javascript

Link to this answer
Share Copy Link

Contributed on Sep 24 2022

Creepy Caribou

0 Answers Avg Quality 2/10

alternative to typeof in js

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